Hydraulically setting mixture for easy-to-clean structural materials

FIELD: chemistry.

SUBSTANCE: invention relates to a hydraulically setting mixture containing, wt %: a) 6-25 cement, b) 50-90 of at least one aggregate, wherein the maximum grain size ranges from 8 mm to 63 mm and/or sand with grain size of 5 mm, and c) 0.001-8 of at least one fluoroorganyl-substituted silicon compound, wherein the fluoroorganyl-substituted silicon compound is 3,3,4,4,5,5,6,6,7,7,8,8,8-tridecafluorooctyltrimethoxysilane which is in solid granular form on an inorganic material used as a substrate. The invention also relates to a method of producing the mixture and use of the mixture to produce structural materials.

EFFECT: obtaining structural materials with a surface having dirt-repellent properties and which is easy to clean for a long time.

11 cl, 6 ex, 1 tbl

 

The invention relates to a special hydraulically setting mixture, and the surface made from it are set, respectively, of the hardened product has a soil-repellent properties.

Hydraulically setting materials, such as cement building materials, used in many important areas of modern construction, such as concrete materials for paving driveways, sidewalks or terraces. Contamination of surfaces like concrete materials, primarily their outer surfaces, a variety of substances, for example, exhaust gases of vehicles and industrial flue gases, in particular, soot, and flower pollen, grass stains, oils, primarily motor oils, residues drinks and food, in particular, Coca-Cola, coffee, red wine or ketchup, and the pollution caused by the growth of microorganisms, especially algae or fungi, is a serious aesthetic problem. In this regard, in case the above application hydraulically hardened materials it is desirable to give them dirt repellent properties (below also called suitability for easy cleaning).

Under soil-repellent properties mean the ability of a surface material protiva ystavat penetration inside him like water, and oily substances, and to facilitate their removal from the surface.

It is known that the suitability for easy cleaning provide through additional processing of the finished hardened surfaces of various materials. For example, in European patent EP 0838467 describes the use of fluorinated silane, respectively, a silanol system, to improve surface quality. The disadvantage of such systems additional surface treatment along with the need to implement additional technological operations after the manufacture of such materials, the building materials are often too low durability of the respective coatings, because they are subject to weathering and abrasion.

In addition, it is known that the properties of hydraulically hardening materials, primarily associated cement construction materials, can be improved by adding funds modification in weight. For example, in European patent EP 0913370 described containing silane water emulsions for making these materials water-repellent (hydrophobic) properties. Unfortunately, you may not be able to provide the necessary suitability surfaces for easy cleaning.

From U.S. patent US 5650004 known associated cement plaster mix that IP is result to seal swimming pools. Water-repellent properties and increased durability specified plasters give by adding modified with silane pozzolanic powders and fillers. The disadvantage of this plaster mix is that despite this long-lasting water-repellent properties, and, consequently, the ability to repel water pollution, the possibility of providing gazettelive properties in the above sense is missing.

From German patent DE 10346082 known hydraulically hardening of the mixture, the specific composition of which causes a change in the structure. So are resistant to abrasion products with soil-repellent surfaces.

From European patent EP 1445242 known not associated cement plaster, respectively coatings for facades, which have soil-repellent properties. Dirt repellent properties provide by reducing mikroheranhvatho, hence the lack of penetration of dirt particles into the pores and locking them in.

The disadvantage of the cited invention is that the modification shall be based on liquid potassium glass, unrelated cement plaster mixes as such.

The present invention was based on the task to propose another hydraulically setting, is first of all associated cement mixture, moreover, the surface from the building material after hardening, respectively solidification, has a fairly good soil-repellent properties that are stored for a very long time.

The specified task according to the invention is solved in accordance with the claims distinctive features.

It has been unexpectedly found that by adding at least one fororganizational silicon compounds, primarily fororganizational silane and/or fororganizational of siloxane, hydraulically setting mixture, commonly called, in particular, concrete mix, from the hydraulically hardened, and the hardened construction material can be given long-term suitability for easy cleaning.

Thus, an object of the present invention is a hydraulically setting mixture primarily for building materials suitability for easy cleaning, containing:

a) from 6 to 25 wt. -%, preferably from 10 to 20 wt. -%, especially preferably from 12 to 18% of the mass. cement,

b) from 50 to 90 wt. -%, preferably from 65 to 85 wt. -%, particularly preferably from 70 to 80% of the mass. at least one filler and

c) from 0.001 to 8 wt. -%, preferably from 0.003 d is 5 wt. -%, particularly preferably 0.005 to 2 wt. -%, even more preferably from 0.01 to 2 wt. -%, in particular from 0.05 to 2 wt%. at least one fororganizational silicon compound.

The amount corresponding to the used component parts, respectively, of the mixture components is 100 wt. -%

According to the invention depending on the particular choice of components a), b) and c) of the mixture in each case comply with the above General quantitative restrictions.

Used according to the invention fororganization silicon compound preferably selected from the group comprising fororganization silanes, fororganization siloxanes and mixtures thereof. In particular, according to the invention fororganization silicon compound preferably selected from the group consist-ing of Monomeric peralkaline silanes, peralkaline siloxanes and mixtures thereof. Examples of the preferable monomer peralkaline silanes are 3,3,4,4,5,5,6,6,7,7,8,8,8-tridecafluorohexyl and 3,3,4,4,5,5,6,6,7,7,8,8,8-tridecafluorohexyl. According to the invention as fororganization compounds of silicon equally possible to use products based on compounds containing at least one specified Monomeric ftoracetamide silane or fluorine is skiltonianus siloxane, and optionally at least one other organosilane, accordingly, organosiloxane, in particular allyltriethoxysilane with 1-16 carbon atoms, for example, allyltriethoxysilane or allyltriethoxysilane with alkyl means methyl, propyl, butyl, octyl or hexadecyl (mentioned only some of the possible connections), or oligomeric organoalkoxysilanes, and similar drugs are selected from the group comprising water, alcohol and/or containing hydrocarbon solutions or emulsions. Preparations of this type are known, for example, from German patent DE 19606011, European patents EP 0538555, EP 0675128, EP 0716127, EP 0716128, EP 0832911, EP 0846717, EP 0953591, EP 0960921, EP 1 033395, EP 1101787 and EP 1193302, as well as from international applications WO 2006/010666, WO 2006/010388 and WO 2009/030538, without limitation this list.

An additional advantage is used according to the invention fororganization of silicon compounds is that the silanes are often on drugs-thinning effect. Used in this case organofluorine system suddenly has no negative impact on the strength of unseasoned state.

In addition, the proposed invention in hydraulically setting mixture preferably may also contain other components:

d) from 0.01 to 2 wt. -%, preferably from 0.05 to 0.5% of the mass. thinner and/or

e) from 0.01 to 1% of the mass. at least one other aircraft is omegatango component.

In the proposed invention the mixture can be used (thus, such mixtures may contain any conventional cements, selected from the group comprising Portland cement, composite cements, cements containing pozzolana, such as fly ash or Microbiocide silicon and slag Portland cement. For example, the cement used in the present invention in a mixture, preferably selected from the group comprising Portland cement, composite cement and slag Portland cement, without limitation specified list.

The so-called placeholders contained in the proposed invention the mixture may be, for example, granular rocks according to EN 206-1:2000. Fillers can be, in particular, aggregates of particles, sand, gravel, stone detail, porphyry, quartz flour, ground limestone, rock flour or a mixture of these materials, as well as fly ash, Microbiocide silicon and other silicate additives or mixtures thereof. Under the sand imply, for example, quartz sand or river sand. The preferred fillers are gravel, stone detail, crushed sand, porphyry, quartz flour, ground limestone, rock flour, or a mixture thereof. Proposed in the invention, the mixture may preferably contain, for example fillers, the maximum grain size of which is determined according to the SNO DIN 1045-2, preferably is from 8 to 63 mm, particularly preferably 8 mm, 16 mm, 32 mm or 63 mm, first of all aggregates with a maximum grain size of 32 mm In a particularly preferred embodiment, filler (s) is (are) aggregates with a maximum grain size of 32 mm and/or sand with a maximum grain size of 5 mm

Proposed in the invention, the mixture, as a rule, you can get a simple and economical method, involving the joint flow and mixing proposed in the invention components. In typical cases, the proposed invention in the mixture, for example, can be combined with water and stirred in a mixing device.

For example, in the General case, by mixing the components indicated in the main claim, you can first prepare a hydraulically setting mixture. In the case of combine cooked mixture with subsequent application of measures provided for in the invention the amount of water can be added to any other of the above components (if necessary, with efficient stirring, using well-known specialists devices, respectively tanks), and the mixture, respectively, the mass may be placed in proper form and subjected to hydraulic hardening, respectively hardening.

Offered in compounds of silicon may be:

(i) compounds, derivatives of compounds of General formulas I, II, III, IV and/or V, which may contain a crosslinking structural elements forming Zaporizhye, cyclic, crosslinked and/or spatial stitched patterns, at least one of which has the idealized General formula I:

,

moreover, the structural elements of the formula I are derived alkoxysilanes General formulas II, III, IV and/or V, and

- A means aminoalkyl the remainder of the H2N(CH2)f(NH)g(CH2)h(NH)m(R7)nin the structural element derived alkoxysilane General formula II:

,

where f denotes an integer from 0 to 6; g is 0, if f denotes 0 or g is 1, if f denotes a number greater than 0; and h stands for an integer from 0 to 6; x is 0 or 1; m is 0 or 1; n is 0 or 1 provided that the sum (n+m) is equal to 0 or 2; and R7denotes unbranched, branched or cyclic divalent alkyl group with 1 to 16 carbon atoms,

- In means alkyl fluoride residue R4-Y-(CH2)kin the structural element derived alkoxylate General formula III:

,

in which R4means mono-, oligo - or perfluorinated alkyl group with 1-9 carbon atoms or a mono-, oligo - what do perfluorinated aryl group; Y represents CH2-, O - or S-group; R3denotes unbranched, branched or cyclic alkyl group with 1-8 carbon atoms or aryl group; k is 0, 1 or 2, and y in formula III and/or VI denotes 0 or 1, and R4preferably means a group of formula F3C(CF2)r, where g denotes a number from 0 to 18, preferably 5; Y preferably denotes CH2- or O-group, and preferably k is 1, if Y represents-CH2-,

- C stands for an alkyl residue R5in the structural element derived amoxicilina General formula IV:

,

in which R5denotes unbranched or branched alkyl group with 1-4 carbon atoms, in particular methyl, and u in formula IV is 0 or 1,

- D means the alkyl residue R6in the structural element derived amoxicilina General formula V:

,

the remaining R6in the above formula denotes unbranched, branched or cyclic alkyl group with 1-8 carbon atoms, and

the remains of R1in formulas II, III, IV, V and/or VI independently from each other mean an unbranched, branched or cyclic alkyl group with 1-8 carbon atoms or aryl group, independently from each other preferably methyl, ethyl or propyl; OST the TCI R 2, R3and/or R5in the above formulae independently of one another denote unbranched or branched alkyl residue with 1 to 4 carbon atoms, preferably independently from each other methyl or ethyl, and

- HX in the formula (I) means acid, and X represents an inorganic or organic acid residue, the indices x, y and u independently of one another are identical and denote 0 or 1, the indices a, b, c, d and e independently of one another denote integers, where a≥0, b≥0, c≥0, d≥0, e≥0 and (a+b+c+d)≥2, preferably (a+b+c+d)≥4, particularly preferably (a+b+c+d)≥10, and X represents, for example, an acid residue of chloride, nitrate, formate or acetate,

or (ii) compounds, in which organosiloxane are joint products of condensation products of block joint condensation or mixtures thereof, derivatives of at least two of the above alkoxysilanes General formulas II, III, IV and V, preferably of alkoxysilanes formulas II and III in a molar ratio of 1:≤3,5, or with indices a, b, c and d are mole alkoxysilanes formulas II, III, IV and V with a molar ratio of 0.1≤[a/b+c+d], in particular, of 0.25<[a/b+c+d]<6000, preferably 1≤[a/b+c+d]≤3, provided that a>0, b>0, c>0 and d>0,

or (iii) Monomeric fororganizational silicon compounds of General formula VI:

,

in which R4, Y, R1, R3, k and y is the akie, as indicated above, and/or mixtures of several Monomeric compounds of General formula VI.

Above fororganization silicon compound preferably can also be used in the form of an aqueous preparation, for example, an aqueous solution, dispersion or emulsion. This contributes to further simplification of the processing containing cement water mixtures. Such aqueous preparations can be, in particular, aqueous dispersion or emulsion fororganizational silane and/or siloxane content fororganizational silicon compounds which ranges from 1.5 to 90% of the mass/, preferably from 2 to 80 wt%, particularly preferably from 2.5 to 70 wt. -%, even more preferably from 5 to 60 wt%. (respectively, calculated on the total weight of the aqueous composition).

If used according to the invention fororganization silicon compounds are in the form of an aqueous emulsion may contain at least one emulsifier, preferably selected from the group comprising alkyl sulphates with 8-18 carbon atoms in the alkyl, alkylsulfonate and alkylarylsulfonates with alkyl with 8-18 carbon atoms in the hydrophobic residue and 1-40 ethylenoxide, respectively propyleneoxide units, alkyl sulphonates with 8-18 carbon atoms in the alkyl, alkalicarbonate with 8-18 carbon atoms in the alkyl, the number esters sulfonterol acid with a monohydroxy alcohols or alkyl phenols with 5-15 carbon atoms, alkali metal salts and ammonium carboxylic acids with 8 to 20 carbon atoms in the alkyl, aryl, alcylaryl or uralkaliem balance, alkylphosphate and alkylaromatic with 8-20 carbon atoms in the organic residue, phosphates simple alilovic, respectively alkylaryl esters with 8 to 20 carbon atoms in the alkyl, respectively ALK-aryl residue and 1-40 ethyleneoxide units, alkylpolyglycoside and alkylresorcinol with 8-40 ethyleneoxide units and 8 to 20 carbon atoms in the alkyl or aryl residue, a block copolymer of ethylene oxide with propylene oxide with 8-40 ethylenoxide, respectively propyleneoxide units, the addition products of alkylamines followed with 8-22 carbon atoms in the alkyl residue to the ethylene oxide or propylene oxide, alkylpolyglycoside with unbranched or branched, saturated or unsaturated alkyl residues with 8-24 carbon atoms and oligoglycosides residues with 1 to 10 units of hexose or pentoses, creditentials surfactants and mixtures of these emulsifiers. The content of the emulsifier in such emulsions is preferably from 0.01 to 5% by mass. in terms of its total mass.

In addition, the aqueous composition used according to the invention fororganizational silicon compound preferably may also contain the conventional excipients, selected from the group comprising inorganic or organic acids, buffer substances, fungicides, antibacterial agents, algaecides, Microbiocide, substances for correction odor, corrosion inhibitors, preservatives and rheological auxiliary components.

Used according to the invention fororganization silicon compound can be in solid or liquid form. They can also be in granular, in particular, powder form, which can be atomized in water.

Thus, in the case of the proposed invention the mixture fororganization the silicon compound is preferably in a solid granular form may be used as the substrate of an inorganic material, in particular, porous, respectively absorbing material, respectively, may be sorbed, in particular, absorbed by this material, which preferably may be in a solid granular form and may also be suitable for dispersion in water. It was found that in such cases the matter can be of especially good quality and homogeneity to enter into the proposed invention the mixture.

If fororganization the silicon compound is in the form of particles, respectively, in powder form, this form can be used to obtain featur the emnd in the invention the mixture as such or in the form of a dispersion. Such fororganization connection in the form of particles, respectively powdered fororganization silicon compound can be obtained by applying the proposed invention fororganization compounds of silicon on a substrate of inorganic materials such as metal oxides, metal carbonates, sulfates of metals, phosphates of metals and/or soot.

Metal oxides in accordance with the present invention may be oxides, hydroxides or hydrates of oxides of elements of main groups I, II, III and/or IV, as well as side groups IV, VI, VIIIa and/or VIIIc of the Periodic system of elements, and/or cerium. Preferably use of silicic acid, such as flaming silicic acid, i.e. pyrogene obtained silicic acid, precipitated silicic acid and crystalline silica or zeolites.

In addition, the quality of substrate materials can be used carbonates and/or bicarbonates, sulphates and/or hydrosulfate, as well as phosphates, hydrogen phosphates and/or dihydrophosphate these metals, respectively, of elements.

As substrate materials can also be used inorganic materials of natural origin. Such materials are, for example, clay, limestone, ground limestone, chalk, gypsum and/or rock flour, for example, slate flour.

<> Suitable forms in the form of particles, respectively, powdered, in particular, granular form can be obtained, for example, by processing at least one of the above substrate materials at least one of the above proposed invention liquid fororganization compounds of silicon, respectively preparations. Processing can be performed, for example, by wetting (mixing, kneading, grinding, dipping, filling with water) the above substrate materials at least one of the above fororganization compounds of silicon, respectively, of drugs, and the subsequent heat treatment, for example, in a drying Cabinet. Processing can also be performed by spraying the substrate material fororganizational compound of silicon, optionally at elevated temperature, and optionally in the form of steam. The processing is preferably performed in an internal mixer, such as mixer Lady. You can also make a preliminary or subsequent grinding and/or sieving of powders. The manufacture of suitable shapes in the form of particles, respectively powdered form, can be performed, in particular, as described in the example in European patent EP 0466958. In addition, a suitable shape in the form of particles, is relevant to the military powdered form can be obtained for example, as described in U.S. patent US 7514494.

The average size of the particles used according to the invention the substrate material is preferably from 1 nm to 100 μm (including any intermediate values), preferably from 2 nm to 10 μm, particularly preferably from 3 nm to 1 μm, even more preferably from 5 to 500 nm. The average size of the substrate material can be defined, for example, by the method of transmission electron microscopy.

The specific surface used according to the invention the substrate material is preferably from 20 to 800 m2/g (including any intermediate values), preferably from 25 to 600 m2/g, particularly preferably from 50 to 500 m2/g, even more preferably from 60 to 400 m2/g, in particular from 70 to 300 m2/g Specific surface area (BET), you can define, for example, according to DIN 66131.

Pore volume used according to the invention the substrate material preferably may be from 0.1 to 10 cm3/g pore Volume can be determined by calculation on the basis of the total volume of micropores, mesopores and macropores. The volume of micropores and mesopores determined by assessing the isotherms of nitrogen absorption according to BET, De Boyer and Bareto, Joyner and Galende. Determination of the volume of macropores with a diameter of more than 30 nm carried out by the method of mercury porometry. To determine obamamaniac the sample for 15 hours and dried in a drying Cabinet at 100°C and Tegaserod at room temperature in vacuum. To determine the volume of micropores and mesopores sample for 15 hours and dried in a drying Cabinet at 100°C for one hour Tegaserod in vacuum at 200°C.

Finally, as substrate materials can also be used soot. As carbon black can be used carbon black pigment with an average size of primary particles of from 8 to 80 nm, preferably from 10 to 35 nm and a DBP number of from 40 to 200 ml/100 g, preferably from 60 to 150 ml/100 g DBP-number can be defined according to DIN 53601 (DBP means dibutyl phthalate). As carbon black can be used pigment, furnace, gas, duct or tube soot. Examples of suitable soots are color black FW 200, color black FW 2, color black FW 2 V, color black FW 1, color black FW 18, color black S 170, color black S 160, special black 6, special black 5, special black 4, special black 4A, Printex 150 T, Printex U, Printex V, Printex 140 U, Printex 140 V, Printex 95, Printex 90, Printex 85, Printex 80, Printex 75, Printex 55, Printex 45, Printex 40, Printex P, Printex 60, Printex XE 2, Printex L 6, Printex L, Printex 300, Printex 30, Printex 3, Printex 35, Printex 25, Printex 200, Printex A, Printex G, special black 550, special black 350, special black 250, special black 100 company Evonik Degussa GmbH. In a preferred embodiment of the invention it is possible to use a gas soot. In another embodiment of the invention it is possible to use silicon-containing carbon black, known from German patent DE 19613796, international is the breaking applications WO 96/37447 and WO 96/37547, as well as metal-containing carbon black, known from international application WO 98/42778.

As mentioned above, the particle size can be installed before or after processing of the substrate material fororganizational compounds of silicon or relevant products, in particular, florencemalcolm, respectively liquid system on the basis of peralkaline by grinding, for example, in a ball mill, bead mill or countercurrent to the mill and/or in a suitable mixer, for example, in a plow mixer. In addition, the particle size can be increased suitable sintering.

If in accordance with the present invention using a silicate additive, preferably can be selected from the group including Microbiocide silica, fly ash, flame silicic acid, osujdennye silicic acid, zeolites, crystalline silica, silicon sols, kaolin, mica, kieselguhr, diatomaceous earth, talc, wollastonite, clay, and a mixture consisting of relevant Microbiocide silica, fly ash, flame silicic acid, osujdennyh silicic acid, zeolites, crystalline silicic acids, silica sols, kaolin, mica, diatomaceous earth, diatomaceous earth, talc, the wollastonite or clay, and the water dispersion of at least one pyrogene obtained silicic acid is, at least one of precipitated silicic acid or mixtures pyrogene received and precipitated silicic acid.

In typical cases, the proposed invention in hydraulically setting mixture, obviously, contains water or water is added. When this amount of water is preferably from 1 to 20 wt. -%

If fororganization the silicon compound according to the invention is used in the form of the corresponding aqueous preparation, in the calculation of the total composition associated cement mixture preferably take into account only the amount present in the corresponding aqueous preparation of the current, respectively, of the active substance in the form proposed in the invention fororganizational silicon compound. When calculating the required added amount of water is preferably take into account the water content in these aqueous preparations.

Thinners can be any conventional auxiliary components to improve the yield, in particular, polycarboxylate esters and/or polymetylmetacrylate and ligninsulfonate or sulfonates of naphthalene-formaldehyde.

Proposed in the invention hydraulically setting mixtures as other excipients may include, for example, dispersing and wetting auxiliary components, the example siliconate or alkylphosphonate, antispyware, for example, trialkylphosphine, a pore-forming additives, for example, amylasemia resin acids, retarders and accelerators, such as formate, and/or means for reducing water flow.

Proposed in the invention hydraulically setting mixture can preferably be used in the production of concrete, the mixing can be performed in conventional mixers enforcement action.

This may be preferred procedure in accordance with which the cement is mixed with solid fillers, optionally pre-mixed with cement liquid non-aqueous components, and, for example, together with used for mixing water is added to water forms fororganizational silicon compounds, in particular, the proposed invention in aqueous dispersion or emulsion fororganizational silicon compound. The powder form can preferably pre-atomized used for mixing water. The content of the additional input of water preferably should be taken into account when establishing the proper ratio between water and cement. Technological properties proposed in the invention mixtures in contrast to unmodified mixtures preferably remain n is changed.

You can also download in a forced action mixer a mixture of solid substances proposed in the invention hydraulically setting mixture, and then add a certain amount of water in the form of total servings or more individual portions and to perform the mixing.

Similar to the proposed invention, the mixture of solids for hydraulically setting mixture can be prepared, for example, in the following way: in a mixing tank load cement [component a)], filler [component b)] and the bulk substrate material [component(c)], the processed at least one fororganizational compound of silicon, mix the components and, if necessary, loaded into a shipping container and ready for use. In addition, if these components are in powder, respectively granular form, such mixtures of solids can optionally be added, respectively, to allay thinner [(component d)] and/or other excipients [(e)]. If these components d) and e) should be liquid, they can also apply for one of the above substrate materials, therefore, translate into granular form and add, respectively, be added to the proposed invention the mixture.

For the application of the Oia is similar to the proposed invention is a mixture of solid substances (briefly known also blend, it can-known method of mixing in the mixer, for example, concrete mixer, water for mixing, and then apply.

Furthermore, the manner proposed in the invention hydraulically setting mixture can be subjected to well-known specialists of the molding and curing, receiving materials, the surface of which preferably has provided in the present invention a slight tendency to pollution (suitability for easy cleaning) when the abrasion.

Thus, an object of the present invention are also building materials, in particular, building blocks, concrete products or molded parts that can be manufactured using the proposed invention hydraulically setting mixture.

Another object of the present invention is the application of the proposed invention hydraulically setting mixture for manufacture of building materials, in particular, structural members, concrete products or molded parts, the surface of which has a slight tendency to pollution (suitability for easy cleaning) when the abrasion.

The object of the present invention is also the use of fororganizational silicon compounds, especially considered in detail above fororganizational connections cream is Oia, for inoculation the weight of the hydraulically setting mixtures, in particular mixtures containing from 6 to 25% of the mass. cement, from 50 to 90% of the mass. at least one filler, and from about 0.001 to 8 wt%. at least one fororganizational silicon compound, and optionally from 1 to 20 wt%. water, from 0.01 to 2% of the mass. thinner and/or from 0.01 to 1% of the mass. at least one other auxiliary component, and the sum of the respective components is 100 wt. -%

Proposed in the invention hydraulically setting mixture can preferably be used in construction, primarily for the manufacture of building elements and concrete paving materials, as well as facing concrete, intended in particular for cladding materials for paving, and similar construction materials preferably possess suitability for easy cleaning.

It should be noted that for manufacturers associated cement construction elements, primarily for manufacturers of concrete stones, the modification of hydraulically setting, particularly associated cement construction elements, the surfaces of which despite abrasion and atmospheric effects suitable for easy cleaning, currently of great interest.

P is dostavlenie available and the use of the proposed invention in mixtures due to previously unattainable long-term suitability of a hydraulically hardened products for easy cleaning, independent from abrasion and exposure to the atmosphere, contributes to a significant reduction of costs for cleaning and maintenance, due to the lengthening of the cleaning cycles. Such modification in the mass should be carried out primarily in the production of products which can be already in protected status. This fall additional costs on the construction site.

However, the proposed invention masses can be obtained and preferably also be used by the application.

The following examples serve for a more detailed explanation of the present invention and do not limit its scope.

Used for testing samples of the cement slurry is prepared from commercially available universal dry building mixtures (group II according to DIN V 18580, group P II according to DIN V 18550) company Quick-Mix. For this purpose, about 100 g of this mixture is thoroughly stirred for about 24 ml of water. Used in the examples of the additive pre-respectively dispersed in water for mixing. The resulting mixture is placed in a plastic formwork, dried for 24 hours at 25°C, then the formwork is removed and the mixture within the next 28 days utverjdayut at 25°C. the Ability to contamination determined in accordance with DIN EN ISO 10545-14 (test described in detail below).

Data in m is sovich percent belong respectively to the mass of absolutely dry mixture.

Additive on the basis of peralkaline can be obtained as described above or in accordance with example 1 of German patent DE 19955047.

Example 1 (comparative example)

The test sample receive, as described above. When this additive is not used.

Example 2

The test sample receive, as described above. Before the addition of water for mixing therein is dispersed 3% of the mass. aquatic forms of peralkaline obtained in accordance with example 1 of German patent DE 19955047.

Example 3

The test sample receive, as described above. Before the addition of water for mixing therein is dispersed 5% of the mass. the powder obtained in accordance with example from European patent EP 0466958 B1, which contains 6% of the mass. 3,3,4,4,5,5,6,6,7,7,8,8,8-tridecafluorohexyl.

Example 4

The test sample receive, as described above. Before the addition of water for mixing therein is dispersed 10% of the mass. the powder obtained in accordance with example from European patent EP 0466958 B1, which contains 6% of the mass. 3,3,4,4,5,5,6,6,7,7,8,8,8-tridecafluoro-triethoxysilane.

The test sample receive, as described above. Before the addition of water for mixing therein is dispersed 3% of the mass. 3,3,4,4,5,5,6,6,7,7,8,8,8-tridecafluorohexyl.

Example 6 (comparative)

The test sample receive, as described above. Before adding water is La mixing it dispersed 2% of the mass. the emulsion of the type oil-in-water", which contains 50 wt%. (calculated on the total emulsion) of octyltriethoxysilane.

Evaluation of test results

Suitability for easy cleaning

On the surface of the cured test sample (not on the side that was in contact with formwork) put a drop (about 0.5 ml) of the corresponding polluting agent, namely coffee (black iced coffee with sugar), Coca-Cola, red wine, and olive oil. After one-hour exposure at 25°C the surface is wiped with a soft cloth and within three minutes, washed with demineralized water. In conclusion, water is removed with a soft cloth and after drying, perform a visual assessment of the degree of contamination of the surface. The rating of 5 corresponds to the absence of visible contamination, the score of 4 corresponds clubvideo pollution assessment 3 corresponds to the visible pollution, the score of 2 corresponds horesovicky pollution and the score of 1 corresponds to strong contamination of the surface. Good suitability surfaces for easy cleaning means that a significant improvement compared with untreated comparative sample. Good suitability surfaces for easy cleaning means that in the case of three water polluting agents (coffee, Cola and red wine), respectively, reach the 4 Il is 5 and at the same time achieve significant improvements compared with untreated comparative samples in the case of olive oil. The results of this test are shown in table 1.

Table 1
The test results of pollution
ExampleContamination of coffee (with sugar)Pollution Coca-ColaContamination of red winePollution olive oil
11511
23433
33432
44443
54544
624 11

As follows from the table, the use of the proposed invention in mixtures of examples 4 and 5 allows to provide very good suitability of the surface of specimens tested for easy cleaning, while in the case proposed in the invention mixtures of examples 2 and 3 can achieve a good fitness surfaces for easy cleaning. In contrast, in the case of using the mixture of comparative example 6, which contains only alkylsilane (without fluoride), improving the suitability of surfaces for easy cleaning missing.

1. Hydraulically setting mixture containing:
a) from 6 to 25% of the mass. cement,
b) from 50 to 90% of the mass. at least one filler, and the maximum grain size is from 8 to 63 mm and/or sand 5 mm, and
c) from 0.001 to 8% of the mass. at least one fororganizational silicon compound, and fororganizational compound of silicon is 3,3,4,4,5,5,6,6,7,7,8,8,8-tridecafluorohexyl, which is in solid granular form for use as the substrate of an inorganic material.

2. The mixture under item 1, characterized in that it further comprises:
d) from 0.01 to 2% of the mass. thinner and/or
e) from 0.01 to 1% of the mass. at least one other auxiliary tools.

3. The mixture under item 1, ex is different, however, that cement is selected from the group comprising Portland cement, composite cements, cements containing pozzolana, and slag Portland cement.

4. The mixture under item 1, characterized in that the filler is selected from the group including aggregates, sand, gravel, stone detail, porphyry, quartz flour, limestone flour, stone flour, fly ash, Microbiocide silicon, other silicate additives and mixtures of these materials, and particularly preferred fillers are aggregates with a maximum grain size of 32 mm and/or sand with a maximum grain size of 5 mm

5. The mixture under item 1, characterized in that fororganization the silicon compound is in solid, granular form, with the possibility of dispersion in water.

6. Mixture according to one of paragraphs.1-5, characterized in that it contains from 1 to 20 wt%. water.

7. The method of obtaining a mixture by p. 6, characterized in that the mixture according to one of paragraphs.1-6 combined with water and mixed in the mixer.

8. Apply the mixture on one of the PP.1-6 or received under item 7 of the mixture for the manufacture of construction materials, especially structural members, concrete products or molded parts.

9. Apply the mixture on one of the PP.1-6 or received under item 7 of the mixture for producing the facing concrete.

10. Application fororganizational silicon compound 3,3,4,4,5,5,6,6,7,7,8,8,8-tridecafluorohexyl is ethoxysilane, which is in solid granular form for use as the substrate of an inorganic material for modifying the weight of the hydraulically setting mixtures, especially mixtures containing from 6 to 25% of the mass. cement, from 50 to 90% of the mass. at least one filler, and from about 0.001 to 8 wt%. at least one fororganizational silicon compound, and optionally from 1 to 20 wt%. water, and/or from 0.01 to 2% of the mass. thinner and/or from 0.01 to 1% of the mass. at least one other auxiliary component, and the sum of the respective components is 100 wt. -%

11. Building materials, especially structural elements, concrete products or molded articles obtained by using the mixture according to one of paragraphs.1-6 or received under item 7 of the mixture.



 

Same patents:

FIELD: chemistry.

SUBSTANCE: group of inventions relates to dry concrete or mortar composition, containing porous granules and to concrete or mortar, manufactured from said composition. Dry concrete or mortar composition, containing particles-cores, to the surfaces of which particle of hydraulic binding substance are fixed, and separate particles of hydraulic binding substance, particles-cores consist of inert or pozzolanic material and together with binding substance attached to them form porous granules, which, in their turn, are fixed to the surface of dry filling agent. Concrete or mortar, manufactured from said dry composition, mixed with water, is described. Invention is developed in dependent items of the invention formula.

EFFECT: increase of strength and fire resistance of concrete, obtained from claimed dry composition.

25 cl, 2 ex

FIELD: chemistry.

SUBSTANCE: present invention relates to a hydraulic composition which includes: at least one hydraulic binder, at least one first plasticising additive which includes at least one phosphonic-amino-alkylene group, at least one second plasticising additive which includes at least one polymer with a comb-like structure, wherein the weight concentration off the dry residue of the second additive is 25-100% of the weight concentration of the dry residue of the first additive. The invention also relates to concrete which includes said hydraulic composition and the composition of a diluting mixture for said hydraulic composition. The invention is developed in subclaims.

EFFECT: low viscosity of the hydraulic binder-based composition over the processability duration of the composition.

10 cl, 6 tbl, 2 dwg

FIELD: chemistry.

SUBSTANCE: invention relates to powders for obtaining a self-levelling freshly-prepared concrete mixture. The powder contains, wt %: from 94% to 99% of particles of at least one fire-proof material, whose main component is represented by aluminium oxide and/or zirconium dioxide, and/or silicon dioxide; from 1% to 6% of hydraulic cement; from 0 to 0.03% of organic fibres; optionally from 0.075% to 1%, preferably from 0.1% to 1% of a surface-active substance; and optionally a setting accelerator, with the fraction of particles, possessing the size less than 40 mcm, being distributed relative to the powder mass in the following way, wt %: fraction <0.5 mcm - ≥4%, fraction <2 mcm - ≥5%, fraction <10 mcm - ≥16%, fraction <40 mcm - 29-45%, and a part of zirconium dioxide in the fraction of particles with the size less than 10 mcm, called "fine fractions", is in the range from 35 wt % to 75 wt % relative to the total weight of the said fraction.

EFFECT: improvement of the concrete mixture self-levelling.

24 cl, 6 tbl

FIELD: chemistry.

SUBSTANCE: invention relates to building equipment and can be applied in the production of concrete products for the improvement of their basic physical-chemical properties. The complex additive for concrete mixtures and mortars contains a superplasticiser C-3, a mixture of Iceland spar, aluminium sulphate and fine-grained pyrite in a ratio, wt %: superplasticiser C3 10-30, Iceland spar 50-80, aluminium sulphate 5-7.5, fine-grained pyrite 5-7.51.

EFFECT: improvement of basic properties of concrete: increase of strength and reduction of moisture permeability.

1 dwg, 1 tbl

FIELD: chemistry.

SUBSTANCE: raw material mixture for concrete production, which contains cement, a fine filler, a plasticising additive and water, additionally contains milled and sieved through net No. 10 mobile phone waste with preliminarily extracted accumulators with the following component ratio, wt %: cement 24-36; fine filler 12.7-17.9; plasticising additive 0.1-1.5; water 18-36; milled and sieved through net No. 10 mobile phone waste with preliminarily extracted accumulators 10-40.

EFFECT: safe utilisation of mobile phones.

1 tbl

FIELD: chemistry.

SUBSTANCE: raw material mixture for obtaining artificial stone includes, wt %: Portland cement 28-30, carbon silicides 26-29, iron oxides 1-1.5, water 28-30, cut into 5-15 mm segments asbestos fibre 1-1.5, quartz sand 11-13.

EFFECT: obtaining durable and ecologically safe artificial stone.

1 tbl

FIELD: chemistry.

SUBSTANCE: invention relates to a powdered composition of a construction material, preferably dry mortar for industrial production, and especially to tile adhesives, joint filler, putty, waterproofing slurry, repair mortar, levelling mortar, reinforcing adhesives, adhesives for heat-insulation composite systems, mineral plaster, fine putty and seamless floor systems, which contains an ester of A) 2-ethylhexanoic acid and B) an alcohol with a boiling point of at least 160°C. Further, the invention discloses the production of said products, as well as use of esters according to the invention in powdered compositions of construction materials for reducing dust formation. The invention is developed in subclaims.

EFFECT: reducing dust formation, reducing the degree of release of organic compounds during storage and use of construction materials.

14 cl, 1 tbl

FIELD: chemistry.

SUBSTANCE: claimed invention relates to a concrete-expanding additive and to a method of obtaining thereof. Concrete with the said additive possesses higher stability in storage. The concrete-expanding additive is obtained by thermal treatment of a clinker or a powder-like clinker, which contains in wt.p. per 100 parts of the clinker free lime in an amount of 10-70, a hydraulic substance 10-50 and water-free calcium sulphate 1-50, in an atmosphere of gaseous carbon dioxide to form in it calcium carbonate. In the method of obtaining an expanding additive clinker, containing free lime, the hydraulic substance and water-free calcium sulphate are subjected to thermal processing to form in it calcium carbonate. The invention is developed in dependent items of the invention formula.

EFFECT: provision of considerable concrete expansion in the period from 2 to 7 days after laying, which makes it possible to develop high early compression strength.

9 cl, 7 tbl

FIELD: construction.

SUBSTANCE: method of preparing the concrete mixture, consisting in mixing of cement, aggregates, water, and aqueous suspension of complex modifier of the following composition, wt %: silica fume 40-70; chemical additives 2-10; water - the rest, which is dried prior to mixing in the air stream to obtain powder consisting of granules, according to the invention, the aqueous suspension of complex modifier before mixing is subject to drying under the influence of continuous electromagnetic field of ultra-high frequency of 400-1000 MHz from microwave oscillators and heated air stream of microwave oscillator cooling to obtain powder with grains of size up to 500 microns and moisture of 9-12%; then the dried powdered complex modifier and cement are subjected to dispersion and disaggregation via exposure to pulsed electromagnetic field of ultra-high frequency of 1000-3000 MHz lasting 1-1.5 seconds, till the obtention of ultrafine powder of complex modifier with size of 60-100 nm, moisture of 1-8% and cement of size 0.1-5 microns, after that they are mixed, ground together and activated, form the disaggregated and activated mixture of cement and complex modifier, which is mixed with filler and water, concrete mixture is obtained; this mixture is subjected to the influence of powerful pulsed electromagnetic field of ultra-high frequency of 400-1000 MHz with duration of 1100÷nanoseconds.

EFFECT: increase of strength of concrete mixture.

1 tbl

FIELD: chemistry.

SUBSTANCE: composition for producing structural materials, comprising mineral binder, filler, water and nanomaterials, characterised by that the mineral binder is cement M-500 and bentonite clays, the filler is aluminosilicate microspheres (Al2O3) with diameter of 5.0-500 mcm, and as nanomaterials, the composition further includes a microstructure of needle-like wollastonite filler MIVOLL-97, free of natural calcium metal silicate, and fractional microcalcite MICARB "STANDARD"-96 and a foaming agent PB-200, with the following ratio of components, wt %: bentonite clays 2.0-8.0, aluminosilicate microspheres with diameter of 5.0-500.0 mcm 3.0-25.0, MIVOLL-97 - 1.5-5.5, MICARB "STANDARD"-96 - 2.0-8.0, silicon nanostructures AEROSIL - 2.0-5.0, foaming agent PB-200 - 1.0-4.0, water - 3.0-15, cement M-500 - the balance.

EFFECT: obtaining a high-strength composition with improved processing properties structural materials, the present combination of ingredients of the composition is optimal and enhances positive working qualities thereof.

4 ex, 5 dwg

FIELD: chemistry.

SUBSTANCE: claimed invention relates to application of solid material, including at least organosilane and carrier material, for hydrophobilisation of construction mortars, in which organosilane has formula R1Si(OR')3 or R1R2Si(OR')2, in which R1 and R2 are similar or different and represent linear or branched C1-C4-alkyl and/or alkenyl group, OR' represents acetoxy- C1-C4-alkoxy- and/or C2-C6-methoxyalkoxy- and/or ethoxyalkoxy-group, and carrier material is solid at room temperature. Amount of cement in final formula equals zero or is less than 5 wt % counted per the total weight of final formula in dry and non-solidified form. Also claimed are: powder, including silane and carrier, with carrier representing water-soluble polymer, dry formulas of construction mortar, which do not contain or contain less than 5 wt % of cement counted per dry weight of non-solidified formula of construction mortar, as well as methods of obtaining formulas and/or compounds. Invention is developed in dependent items of the invention formula.

EFFECT: obtaining material, stable in storage, which has higher hydrophobicity.

12 cl, 11 ex, 5 tbl

FIELD: chemistry.

SUBSTANCE: inventions relate to protection of substrates against corrosion. Claimed is dispersible redispersible or water-soluble mixture for reinforcing construction materials and protection against corrosion, based on, at least, one water-soluble organic polymer and, at least, one organic silicon compound, which contains, at least, one SiOSi-bond, with content of organic polymer constituting approximately from 40 to 80 wt % counted per the sum of organic polymer and organic silicon compound; and organic silicon compound, which contains, at least, one SiOSi-bond, is based on oligomeric mixture of alkylalkoxysiloxanes, which contains from 50 to 100 wt % of alkylalkoxysiloxanes and has oligomerisation degree mainly from 2 to 20, with oligomer mixture of alkylalkoxysiloxanes satisfying the overall formula I: (R")Si(OR"')xOy (I), where groups R" represent similar or different linear, branched or cyclic alkyl radicals with 1-18 carbon atoms, mainly methyl, ethyl, propyl, hexyl, octyl, hexadecyl; groups R"' are similar or different and represent hydrogen or linear or branched alkyl radical with 1-4 carbon atoms, mainly methyl, ethyl, propyl, and 1,0<x<2,0 and 0,5<y≤1,0, on condition that (2y+x)=3.

EFFECT: creation of substance for protection of materials against corrosion, which can be added to dry construction mixtures both in form of powder and in form of liquid preparation, storage stability, ecological friendliness, and absence of interaction or very insignificant interaction with hydraulically binding components.

18 cl, 4 tbl, 7 ex, 3 dwg

FIELD: construction.

SUBSTANCE: road-building material based on cement contains mineral filler and water, in amount of 4-17 wt parts, liquid thiocol with molecular mass of 1,000-8,000 g/mole, which is able to react with cement or water included in material, 0.1-1 wt part of organosilicon resin with structure HS-R-(OR')3, in which R is alkyd group with direct or ramified chain of 1-10 carbon atoms, R' is reaction-capable group, such as -NH-group, vinyl group, -SH-group. Cement used is cement with shrinkage or expansion ratio less than 0.5%, selected from group including aluminate cement, sulfoaluminate cement, sulfoferrite cement, in amount of 4-17 wt parts. It contains filler in amount of 60-91 wt parts, water in amount sufficient for cement hardening and creation of target material, in which specified elastomer fills at least some of its pores and facilitates filler binding with cement. Material has porosity from 2 to 20%. The second version of road-building material is also characterised.

EFFECT: improved elasticity and resiliency of material under action of mechanical loads, operational resistance.

8 cl, 10 ex

FIELD: building materials.

SUBSTANCE: invention relates to building composition materials. Invention proposes a cement-sandy composition involving cement, sand, water and complex additive comprising calcium hydroxide and sodium carbonate wherein the additive comprises additionally calcium sulfate and sodium and/or potassium methyl/or ethyl siliconate in the following ratio of components in the composition, wt.-%: calcium hydroxide, 0.6-0.9; sodium carbonate, 1.3-1.4; calcium sulfate, 2.5-3.0; sodium and/or potassium methyl and/or ethyl siliconate (for dry matter), 0.001-0.1; cement, 36.0-40.0; sand, 39.0-49.0, and water, the balance. The complex additive can comprise 0.9-1.8 wt.-% of sodium nitrate additionally. Sodium and/or potassium methyl and/or siliconate are used in solid form ("SIAKOR" powder) or as a liquid (organosilicon liquids "GKZH-10" a/or "GKZH-11"). Invention provides decreasing water absorption and enhancing longevity of walls and other building constructions, in particular, architecture monuments. Proposed composition can be used for protection of concrete, brick and stone surfaces of repairing, renovating and building structures and constructions.

EFFECT: improved and valuable properties of composition.

5 cl, 2 tbl

FIELD: building materials, in particular grouting mortar, concrete mix, and dry building mix.

SUBSTANCE: claimed complex powder additive contains (mass %): superplasticizer 66.7-72.7; commercial lignosulfonates 17.4-20.0; organopolysiloxane (e.g. sodium ethylsiliconate or methylsiliconate containing 5.53-6.11 mass % of silicon and having polymerization degree of 9-12) 7.3-15.9.

EFFECT: high-technology dry plasticizer, providing optimum air entrainment and stable physical and mechanical properties of concrete and mortars under negative temperatures.

2 tbl

Insulation material // 2102350
The invention relates to thermal insulation materials that can be used for thermal insulation of surfaces in various sectors of the national economy

The invention relates to the field of building materials and is intended for use as coatings for protective and decorative finishes building products of concrete, asbestos cement, cement-bonded particleboards

FIELD: building materials, in particular grouting mortar, concrete mix, and dry building mix.

SUBSTANCE: claimed complex powder additive contains (mass %): superplasticizer 66.7-72.7; commercial lignosulfonates 17.4-20.0; organopolysiloxane (e.g. sodium ethylsiliconate or methylsiliconate containing 5.53-6.11 mass % of silicon and having polymerization degree of 9-12) 7.3-15.9.

EFFECT: high-technology dry plasticizer, providing optimum air entrainment and stable physical and mechanical properties of concrete and mortars under negative temperatures.

2 tbl

Up!