Production of self-compacting super strong reactive powder fibro-mortar with high fluidity and method for production of concrete articles from said mix

FIELD: process engineering.

SUBSTANCE: this invention relates to production of construction materials and can be used for fabrication of concrete articles: decorative open-work guards and grates, fine pavement plates and edge stones, etc. This method consists in mixing of components to required fluidity mix. First, water and super plasticiser are mixed in the mixer. Then, added are cement, micro silica, rock dust and mixed for 2-3 minutes. Now, added are sand and fibre and mixed for 2-3 minutes. The following components result: Portland cement PC500D0, sand of 0.125-0.63 fraction, super plasticiser, fibres, micro silica, rock dust, hardening promoter and water. Production of concrete articles in moulds consists in preparation of mortar, mix feed to moulds and curing in evaporation chamber. Mould inner working surface is processed with fine ply of water. This mould filled, thin ply of water is sprayed on mix surface and mould is closed by temporary trough.

EFFECT: higher fluidity, strength, lower costs, possibility of production of open-work articles.

4 cl, 1 tbl, 3 dwg

 

The present invention relates to building materials and used for the manufacture of concrete products: artistic openwork fences and gratings, pillars, thin paving and curbs, thin tiles for internal and external cladding of buildings and structures, decorative items and small architectural forms.

A known method of manufacturing a decorative building products and/or decorative coatings by mixing with water binder containing Portland cement clinker, modifier, including dewatering organic component and a certain amount of the hardening accelerator and plaster, pigments, fillers, mineral and chemical (functional) additives, and the mixture was incubated until saturation of bentonite clay (functional additive stabilizer mixture) propylene glycol (organic dewatering component), fix the complex gel with hydroxypropylcellulose, styling, shaping, sealing and heat treatment. Moreover, the mixing of the dry ingredients and the mixture is carried out in a different mixers (see RF patent № 2084416, MPK SW 7/52, 1997).

The disadvantage of this solution is the need to use different equipment for mixing the components of the mixture and subsequent what about the operations of the seals, what complicates and increases the cost of technology. In addition, when using this method it is impossible to obtain products with thin and delicate elements.

Known method of preparing the mixture for manufacture of building products, including activation of the binder by a joint grinding Portland cement clinker with a dry superplasticizer and then mixed with filler and water, and first carry out the mixing of the activated filler with 5-10% of the mixing water, then injected activated binder and the mixture is stirred, then enter the 40 - 60% of the mixing water and the mixture is stirred, then enter the remaining water and make final mixing until a homogeneous mixture. Stepwise mixing of the components is carried out for 0.5-1 minutes Made from the mixture of products must be maintained at a temperature of 20°C and 100% humidity for 14 days (see RF patent № 2012551, MPK C04B 40/00, 1994).

The disadvantage of this method is complicated and expensive operation joint grinding binder and superplasticizer consuming for the organization of the mixing and milling complex. In addition, when using this method it is impossible to obtain products with thin and delicate elements.

Known composition for the preparation of a self-sealing b the tone, contains:

- 100 wt. parts cement,

- 50-200 wt. parts of mixtures of sand from calcinatory bauxite different particle size distribution, the most fine sand medium grain size less than 1 mm, most coarse sand medium grain size less than 10 mm;

- 5-25 wt. parts of ultrafine particles of calcium carbonate and white black and white soot content is not more than 15 wt. parts;

the 0.1 - 10 wt. parts antifoaming funds;

the 0.1 - 10 wt. parts of superplasticizer;

- 15-24 wt. parts of fibers;

- 10-30 wt. parts of water.

The mass ratio between the number of ultrafine particles of calcium carbonate in the concrete and the amount of white carbon black can reach 1:99-99:1, preferably 50:50-99:1 (see RF patent № 2359936, IPC SW 28/04 SW 111/20 SW 111/62 (2006.01), 2009, p.12).

The disadvantage of concrete is the use of expensive sand from calcinatory bauxite, usually used in aluminum production, as well as excessive amounts of cement, leading, respectively, to increase the flow of other very expensive component of concrete and, consequently, to increase its value.

A search showed that no solutions, providing reactive powder of self-compacting concrete.

There is a method of preparation of concrete with d is the additive fibers, in which all components of the concrete mix to obtain concrete with desired fluidity or first mix the dry ingredients, such as cement, sand, particles of calcium carbonate, white carbon black and possibly superplasticizer and antifoaming agent, and then add the mixture in water, and if necessary, a superplasticizer, and antifoaming agent, if they are present in liquid form, and, if necessary, fiber, and mix to obtain concrete with the required fluidity. After mixing, for example, within 4-16 minutes the resulting concrete can easily be molded due to its very high turnover (see RF patent № 2359936, IPC SW 28/04, SW 111/20, SW 111/62 (2006.01), 2009, p.12). This decision was made as a prototype.

The obtained ultra-high self-sealing properties of the concrete can be applied to manufacturing of prefabricated elements, such as columns, cross-beams, slabs, beams, tiled floor, artistic structures, prestressed elements or composite materials, material for sealing gaps between the structural elements, elements of systems of sewage disposal or in architecture.

The disadvantage of this method is the large amount of cement to prepare 1 m3the mixture, which results in an increase in the cost of concrete mixture and of the men from her because of the increased consumption of other components. In addition, as described in the invention is a method of using the obtained concrete does not give any information how to produce, for example, art delicate and thin-walled concrete products.

Widely known methods of manufacture of various articles of concrete, when poured into the mould in the concrete is subsequently subjected to vibroplate.

However, with these known methods it is impossible to get artistic, delicate and thin-walled concrete products.

A known method of manufacturing concrete products in packaging forms, which consists in the preparation of concrete mixture, feeding the mixture into the mold, hardening. Used air and damp-proofing in form of thin-walled packaging of multiple forms, covered after feeding them a mixture of air and damp-proofing coating. Hardening products produced in sealed chambers for 8-12 hours (see the patent of Ukraine № UA 39086, MPK7 WV 7/11; VV 7/38; SV 40/02, 2005).

The disadvantage of this method is the high cost of the forms used for the manufacture of concrete products, as well as the impossibility of making such a way artistic, delicate and thin-walled concrete products.

The first task is getting the self-sealing composition abovesurface reactive powder concrete mixture with tribunemedia.net and the necessary strength characteristics, that will reduce the cost of the resulting self-compacting concrete.

The second challenge is to increase the strength characteristics in days age at optimum workability of the mixture and improve the decorative properties of the facial surfaces of concrete products.

First the problem is solved due to the fact that the developed method of making a self-sealing abovesurface reactive powder concrete mixture, which consists in mixing the concrete mixture to obtain the desired fluidity, in which the components are mixed concrete mixture is performed sequentially, with the original mixer mix the water and hyperplasticity, then poured cement, silica fume, stone flour and stir the mixture for 2-3 minutes, then injected sand and fibre and stirred for 2-3 min to obtain a concrete mixture containing components, wt.%:

Portland cement PZ D027,0-31,0
stone flour12,0-15,0
sand FR. 0,125-0,6340,0-44,0
microsilica2,0-5,0
hyperplasticityof 0.2-0.3
fibre steel is 0.22×13 mm3,0-7,0
water7,0-11,0

The total cooking time of a concrete mix is from 12 to 15 minutes.

The technical result from the use of the invention is to obtain a self-sealing abovesurface reactive powder concrete mixture with a very high flow characteristics, improving the quality and effective flowing property concrete mixture, due to the specially selected composition, the sequence of injection and the time of mixing, which leads to a significant increase in the fluidity and strength characteristics of concrete to the M1000 and above, to reduce the required thickness of the products.

Perform mixing of ingredients in a specific sequence, initially in the mixer mix a measured amount of water and hyperplasticity, then add cement, microsilica, stone flour and mix for 2-3 minutes, then injected sand and fibre and the resulting concrete mixture is stirred for 2 to 3 minutes, allows for significant improvement of the quality and flow characteristics (workability), we obtain a self-sealing abovesurface reaction is Raskovoy concrete mixture.

The technical result from the use of the invention is to obtain a self-sealing abovesurface reactive powder concrete mixture with a very high flow characteristics, having high strength characteristics and low cost. Compliance with the above correlation of mixture components, wt.%:

Portland PC D027,0-31,0
stone flour12,0-15,0
sand FR. 0,125-0,6340,0-44,0
microsilica2,0-5,0
hyperplasticityof 0.2-0.3
the steel fibre is 0.22×13 mm3,0-7,0
water7,0-11,0

allows you to get self-sealing abovecompany reactive powder concrete mixture with a very high flow characteristics, high strength characteristics, and thus has a low cost.

Using the above components in compliance with specified proportions in the quantitative ratio allows the t when receiving a self-sealing abovesurface reactive powder concrete mixture with the required fluidity and high strength qualities to ensure the lowest cost obtained mixture and increase, thus, its consumer properties. The use of components such as microsilica, rock flour, allows to reduce the percentage of cement, resulting in a decrease in the percentage of other expensive components (hyperplasticity, for example), and to refuse the use of expensive sand from calcinatory bauxite, which also leads to reduction in the cost of the concrete mix, but does not affect its strength.

Second the problem is solved due to the fact that the developed method for manufacturing articles in the form of fiber-reinforced concrete mix, prepared as described above, which consists in feeding the mixture in a mold and subsequent exposure to curing, the original internal working surface of the mold is sprayed with a thin layer of water, and after filling the form, the mixture is sprayed on its surface a thin layer of water and cover the form of technological tray.

Moreover, the flow of the mixture in the form of exercise consistently, covering the completed form on top of technological pallet, after installation of the technological pallet manufacturing process, product, repeat many times, setting the following form on the technological pallet over the previous one.

The technical result from the use of the invention is to improve the quality of what iceway the surface of the product, a significant increase in strength characteristics of the product, through the use of self-compacting concrete mixtures with very high flow characteristics, special handling forms and organization of care for the concrete in days age. Care for the concrete in days age is to ensure adequate waterproofing forms filled them with concrete by covering the top layer of concrete in the form of a water film and the cover forms pallets.

The technical result is achieved due to the use of self-compacting concrete mixtures with very high flow characteristics, which allows to produce very thin and delicate products of any configuration, repeat any textures and surfaces, eliminates the process of vibrocompaction when molding products, and also allows the use of any form (elastic, fiberglass, metal, plastic and other) for the production of products.

Pre-wetting form a thin layer of water and terminating operation of the spray on the surface of the filled fiber-reinforced concrete mixture in a thin layer of water covering the form with concrete as technological pallet in order to create a sealed chamber for better ripening of concrete eliminates the appearance of air far from the trapped air to achieve high quality on the front is arnosti products, to reduce the evaporation of water from the hardened concrete and to enhance the strength characteristics of the products obtained.

The number of filled simultaneously forms is selected from the calculation of the amount received self-sealing abovesurface reactive powder concrete mixture.

Getting self-compacting concrete mixtures with very high flow characteristics and with improved qualities of workability allows for the production of artistic products not to apply the vibrating table and to simplify the manufacturing technology, to improve the strength characteristics of the art of concrete products.

The technical result is achieved due to the specially selected composition of self-compacting fine-grained abovesurface reactive powder concrete mixture, the sequence of introduction of components, method of processing forms and organization of care of the concrete in days age.

The advantages of this technology and used concrete:

- The use of sand fineness modulus FR. 0,125-0,63;

- The lack of a concrete composition of the coarse aggregate;

- Possibility of manufacturing of concrete products with thin and delicate elements.

- Ideal surface of concrete products;

- The ability to manufacture products with a given roughness and Tex is uroy surface;

- High grade strength of concrete in compression, not less M1000;

- High grade strength of concrete in flexure, not less Ptb100;

The present invention more explained below using examples, which are not restrictive.

Fig. 1 (a, b) - diagram of the manufacture of products to fill the obtained fiber-reinforced concrete in forms;

Fig. 2 is a top view of the product produced using the claimed invention.

A method of obtaining self-sealing abovesurface reactive powder concrete mixture with a very high flow characteristics containing the above components, is as follows.

First weighed all the components of the mixture. Then in the mixer pour the measured amount of water, hyperplasticity. Then the mixer include. In the process of mixing water, hyperplasticity consistently fall asleep the following components of the mixture: cement, silica fume, stone flour. If necessary for coloring concrete in mass, you can add iron oxide pigments. After the introduction of these components into the mixer the suspension obtained is stirred for 2 to 3 minutes.

In the next step, sequentially injected sand and fibre and the concrete mixture is stirred for 2 to 3 minutes. After which the concrete mix is ready to use.

Total remasculate concrete mixture ranges from 12 to 15 minutes, this time includes additional operations for filling components.

During the preparation of the mixture injected accelerator curing.

The obtained self-sealing abovecompany reactive powder concrete mixture with a very high flow characteristics is a liquid consistency, one indicator of which is RASPLAV cone Hagerman on the glass. To the mixture was well dispersed, RASPLAV must be at least 300 mm

As a result of application of the claimed method are self-sealing abovecompany reactive powder concrete mixture with a very high flow characteristics, which consists of the following components: Portland cement PTSD, the sand fraction from 0.125 to 0.63, hyperplasticity, fiber, silica fume, stone flour, accelerator curing and water. In the implementation of the method of manufacturing fiber-reinforced concrete mixtures comply with the following ratio of components, wt.%:

Portland PC D027,0-31,0
stone flour12,0-15,0
the sand fraction 0,125-0,6340,0-44,0
microsilica 2,0-5,0
hyperplasticityof 0.2-0.3
the steel fibre is 0.22×13 mm3,0-7,0
accelerator curing0,15-0,35
water7,0-11,0

Moreover, with the implementation of the method of manufacturing fiber-reinforced concrete mix used stone flour from various natural materials or wastes, such as, for example, quartz powder, dolomite powder, limestone powder, etc.

Hyperplasticity you can use the following brands: Sika ViscoCrete, Glenium etc.

In the manufacture of the mixture can be entered accelerator curing, for example Master X-Seed 100 (X-100 SEED) or similar accelerators strength.

The obtained self-sealing abovecompany reactive powder concrete mixture with a very high flow characteristics can be used in the production of artistic products having a complex configuration, such as openwork fences (see Fig. 2). Use the mixture immediately after it was made.

A method of manufacturing concrete products of the self-sealing abovesurface reactive powder concrete mixture with a very high flow characteristics, obtained is as described above and having the specified composition, as follows.

For the manufacture of delicate objects by pouring a self-sealing abovesurface reactive powder concrete mixture with a very high flow characteristics using elastic (polyurethane, silicone, thermoplasty) or hard plastic mold 1. Conventionally illustrated form, having a simple configuration, but this form is not representative and elected to simplify the scheme. The form is installed on the technological pallet 2. Internal working surface 3 forms produce sputtering a thin layer of water, it further reduces the number of bubbles trapped air on the front surface of the concrete product.

After that, the obtained fiber-reinforced concrete mixture 4 is poured into a mold, where it spreads and comopletely under its own weight, squeezing into the air. After levelling the concrete mixture in the form for more intensive air outlet of the concrete mixture poured into the form, the concrete is sprayed with a thin layer of water. Then the form is filled with concrete mixture, cover the top of the next technological pallet 2, which creates an enclosed chamber for a more intensive set of concrete strength (see figure 1 (a)).

This pallet put up a new form, and the process of manufacturing products again. Thus, from the od of the second portion of the prepared concrete mixture can be filled in several forms, installed one above the other, which improves the efficiency of the use of prepared concrete mixture. Forms filled with concrete mixture is left for curing the mixture for about 15 hours.

After 15 hours concrete products reformulat and sent for grinding the back side, and then in the steam chamber or in a chamber of the heat-moisture treatment (TWT), where the product can stand up to full strength.

The use of the invention allows to produce highly decorative delicate and thin-walled high-strength concrete products brand M1000 and above simplified molding technology without the use of vibrocompaction.

The invention can be implemented using known components listed in observance of the quantitative proportions and describes technological regimes. During implementation of the invention can be applied to certain equipment.

An example of the method of making a self-sealing abovesurface reactive powder concrete mixture with a very high flow characteristics.

First weighed all the components of the mixture and measure in the amount (wt.%):

Portland PC D028
quartz powder14
sand FR. 0,125-0,6342
microsilica3
hyperplasticity Sika ViscoCrete 20 Gold0,2
the steel fibre is 0.22×13mm3,0
accelerator curing0,2
water9,6

Then in the mixer pour the measured amount of water and hyperplasticity Sika ViscoCrete 20 Gold. Then the mixer include and mix components. In the process of mixing the water and hyperplasticity consistently fall asleep the following components of the mixture: Portland PC D0, silica fume, quartz flour. The mixing process are continuously for 2-3 minutes.

The reduction of the mixing time does not allow to obtain a homogeneous mixture, and the increase in mixing time does not provide any additional improvement of the quality of the mixture, but delays the process.

In the next step, sequentially injected sand FR. 0,125-0.63 and steel fibre is 0.22×13mm. The concrete mixture is stirred for 2-3 minutes.

Reducing the time of mixing is not possible to obtain homogeneous mixtures is ü, and the increase in mixing time does not provide any additional improvement of the quality of the mixture, but delays the process.

After which the concrete mix is ready to use.

The total time of manufacturing fiber-reinforced concrete mixture ranges from 12 to 15 minutes, this time includes additional operations for filling components.

Prepared self-sealing abovecompany reactive powder concrete mixture with a very high flow characteristics is used for the manufacture of delicate products by filling in the form.

Examples of the self-sealing composition obtained abovesurface reactive powder concrete mixture with a very high flow characteristics, made the claimed method are shown in table 1.

1. The method of preparation of the self-sealing abovesurface reactive powder concrete mixture with a very high flow characteristics, which consists in mixing the concrete mixture to obtain the desired fluidity, characterized in that the components are mixed, the concrete mixture is performed sequentially, with the original mixer mix the water and hyperplasticity, then poured cement, silica fume, stone flour and stir the mixture for 2-3 minutes, then injected sand and fibre peremeshivayte within 2-3 min to obtain a concrete mixture, contains, wt%:

Portland PC D027,0-31,0
stone flour12,0-15,0
sand FR. 0,125-0,6340,0-44,0
microsilica2,0-5,0
hyperplasticityof 0.2-0.3
the steel fibre is 0.22×13 mm3,0-7,0
water7,0-11,0

2. The method according to claim 1, characterized in that the total time of preparation of the concrete mix is from 12 to 15 minutes.

3. A method of manufacturing articles in the form of fiber-reinforced concrete mixture prepared by the method according to claims 1, 2, which consists in feeding the mixture in a mold and subsequent heat treatment in the steam chamber, and originally on the inner working surface of the mold is sprayed with a thin layer of water, after filling the form, the mixture is sprayed on its surface a thin layer of water and cover the form of technological tray.

4. The method according to claim 3, characterized in that the feed mixture in the form of exercise consistently, covering the completed form on top of technological pallet, after the installation of the technology is the logical pallet manufacturing process of the products is repeated many times, setting the following form on the technological pallet above the previous one and filling it.



 

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FIELD: mining.

SUBSTANCE: stowing composition comprising portland cement, plastifying agent, fine-grained filler - sand and water, additionally comprises as a binder the milled tailings of wet magnetic separation of ferrous quartzites with an average particle size of 2.071 microns, as a plastifying agent - superplasticiser SP-1, and the sand with an average particle size of 62.26 microns with the following ratio of components, wt %; the said cement - 13.48; the said sand - 56.43; the said wastes - 2.70; superplasticiser SP-1 - 0.138; water - the rest.

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1 ex, 2 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: chemistry.

SUBSTANCE: invention relates to industry of construction materials and may be used for production of non-baked heat insulation materials, used for insulation of buildings, structures and pipelines. A composition for production of a heat insulation material, including a binder, a silica-containing filler and boric acid, the binder is an aqueous solution of sodium polysilicate with a silicate module 4.2, produced by introduction of 10% silicon dioxide hydrosol into 30% aqueous solution of sodium silicate with their ratio of 1:1, mixing at 100°C for 3.0 hrs with subsequent soaking at this temperature for 0.4 hrs, and the specified filler - finely ground diatomite at the following ratio of components, wt %: aqueous solution of sodium polysilicate 92.0-95.5, diatomite 1.5-3.0, boric acid 3-6.

EFFECT: increased compression strength and reduced density of a heat insulation material.

1 tbl

FIELD: chemistry.

SUBSTANCE: invention relates to raw material mixtures for obtaining a heat-insulating material, which is applied for the production of heat-insulating coatings of pipelines with cooling media in nuclear and thermal power plants. A composition for obtaining the heat-insulating material includes a binding agent, a silica-containing filler, sodium fluorosilicate and polyethyleneglycol, as the binding agent it contains a water solution of sodium polysilicate with the silicate modulus 4.2, obtained by the introduction of 10% hydrosol of silicon dioxide into a 30% water solution of sodium silicate with their ratio of 1:1, mixing at 100°C for 3.0 h with the following exposure at the said temperature 0.4, and the said filler - milled gaize with the following component ratio, wt %: water solution of sodium polysilicate 100, milled gaize 0.01-45, sodium fluorsilicate 10-40, polyethylorganosilicone 5-25.

EFFECT: reduction of density and the thermal conductivity coefficient.

1 ex, 1 tbl

FIELD: chemistry.

SUBSTANCE: invention relates to the field of building materials, in particular to synthetic hydrocarbon foaming agents, which contain surface-active substances, applied for the production of foam concrete. A foaming agent for the production of foam concrete contains, wt %: sodium salt of alkylsulphates of the primary higher fatty alcohols of the C10 fraction 10.0-25.0, coccoamidopropylhydroxysultone 2.0-4.5, water - the remaining part. The foaming agent for the production of foam concrete contains, wt %: a mixture of sodium salt of alkylsulphates of the primary higher fatty alcohols of the C10 fraction with sodium salt of alkylsulphates of the primary higher fatty alcohols of the C8 fraction, with the content in the mixture of the fraction C10 40-99%, 10.0-25.0, coccoamidopropylhydroxysultone 2.0-4.5, water - the remaining part. The claimed foaming agents additionally contain polymethylpyrrolidone in a quantity of 1.5-5.0 wt %.

EFFECT: improvement of foaming properties of the foaming agent in fresh and sea water with obtaining foam of low and medium multiplicity, simplification of the foaming agent composition.

4 cl, 18 ex, 1 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: construction.

SUBSTANCE: granulated composite filler for concrete products of size 0.5-10.0 mm, consisting of core and shell, wherein the core is obtained by granulating the mixture together with diatomite and sodium hydroxide milled up to the specific surface area of 150-250 m2/kg at their weight ratio of 0.70-0.95:0.05-0.30 with bond by aqueous solution of sodium silicate with density of 1.2-1.3 g/cm3 in the amount of 0.1-7.0 wt % of mixture, and shell is formed on the surface of core by its balling with dry dust mixture together with milled quicklime and silicofluoride sodium in a weight ratio of 0.85-0.95:0.05-0.15 with the subsequent hardening up to the strength not less than 0.12 MPa, after the indicated balling the additional spraying of 40% aqueous solution of oxalic aldehyde in the amount of 1.0-8.0 wt % (per 100% substance) of weight of shell components is carried out. Concrete building product is obtained by using the granulated filler indicated above.

EFFECT: decrease of thermal conductivity and water resistance of concrete products when increasing and maintaining the strength characteristics.

2 cl, 1 tbl, 1 ex

FIELD: building materials, in particular concrete additives (plasticizer).

SUBSTANCE: method includes centrifugal preseparation of distillery dreg to provide concentrate, treatment obtained concentrate with alkali carbonate to pH 8-11, followed by addition of superplasticizer or lignosulfonate solution providing ratio of total amount of alkali carbonate and concentrate to amount of solution ‹1. Superplasticizer or lignosulfonate solution is added to obtained centrifuge effluent, providing ratio of centrifuge effluent to said solution from 0.2 to 2.0 to produce another plasticizer. Dry alkali carbonate content is not more than biomass content in raw distillery dreg. Method of present invention is useful in concrete mixtures manufacturing for producing of precast concrete and cast-in-place constructions.

EFFECT: concrete mixtures with controlled flow characteristic and concrete curing rate.

2 cl, 4 ex

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