Bitumen emulsion

FIELD: construction.

SUBSTANCE: invention relates to bitumen emulsion, including bitumen, emulsifier on the basis of amines, diamines, polyamines and quaternary ammonium salts, hydrochloric acid as reagent for neutralisation of emulsifier, water and additional component, at the same time it as an additional component it contains absorbent 50/370, at the following content of components, wt %: bitumen - 45-59, emulsifier - 0.2-0.5, reagent for neutralisation of emulsifier - 1-2, absorbent 50/370 - 1-5, water - balance.

EFFECT: resistance to flaking when stored for more than 30 days.

12 ex, 2 tbl

 

The invention relates to bituminous emulsions used in creating the pavement.

Known bitumen emulsion for road works, including bitumen, cationic adhesive additive, hydrochloric acid and water [Methodical recommendations on preparation and application in road construction cationic emulsions. M: Soundarya, 1973, p.3-24].

The disadvantages of this emulsion are the low values of the stability of the emulsion and the adhesion of bitumen with mineral filler.

The closest present invention is a bitumen emulsion [patent RU NO. 2176652, MPK7 08L 95/00, 2001], including bitumen, emulsifier surfactant-based type of amines, diamines, polyamines and Quaternary ammonium salts, hydrochloric acid as a reagent to neutralize the emulsifier and water. Moreover, it further comprises a waste pyrolysis of hydrocarbons - heavy pyrolysis resin (SCC) in the following ratios, wt.%:

Bitumen20,0-70,0
Emulsifier0,1-5,0
Reagent for neutralization
emulsifier0,5-3,0
The PS of 0.4 to 8.0
Waterrest

Recipe emulsion allows you to adjust the speed of its collapse when the same content of the emulsifier, improves its stability and adhesion of mineral filler.

The disadvantage of the emulsion is poor stability over time for oxidative aging that can lead to shortened service life of the pavement. In addition, the use in the prototype TPS is undesirable from an environmental point of view, as it contains a significant quantity of carcinogenic components.

The objective of the invention is to improve the stability of the emulsion to delamination during storage.

The problem is solved by the development of bitumen emulsions for road construction, including bitumen, emulsifier, reagent for neutralizing emulsifier, water and an optional component. Moreover, as an additional component of bitumen emulsion contains absorbent 50/370, with the following ratio of components, wt.%:

Bitumen45,0-59,0
Emulsifier0,2-0,5
Reagent to neutralize the emulsifier is 1,0-2,0
Absorbent 50/3701,0-5,0
Waterrest

For the preparation of the emulsion used oil road bitumen grade BND 90/130 according to GOST 22245-90.

The main physico-chemical characteristics of the adsorbent 50/370 (product of OAO "Nizhnekamskneftekhim")obtained in the production of monomers for synthetic rubber (isoprene, isobutylene) and produced by THE 2411-139-05766801-2007 shown in table 1.

As the emulsifier used surfactant type amines, diamines, polyamines and Quaternary ammonium salts.

As a reagent to neutralize the emulsifier using concentrated hydrochloric acid.

Bitumen emulsion is prepared by known techniques by mixing the components in the following sequence.

In a mixture of water, emulsifying agent and acid, heated under stirring up to 70-75°C, being under stirring pre-heated to 120-125°C. a mixture of bitumen and absorbent 50/370.

Samples of bitumen emulsions were prepared in accordance with the following examples.

Example 1.

To a mixture of 48.5 g of water, 0.5 g of emulsifier 1 g acid, heated to 75°C, With constant stirring, add the preheated in a separate container to 125°C. the mixture is 1 gram of absorbent 50/370 and 49 g of road bitumen BND 90/130 and mix until smooth.

The composition of the obtained emulsion of the following (wt.%): bitumen - 49, the emulsifier is 0.5, acid - 1, the absorbent 50/370 - 1, water - 48,5.

Example 2.

To a mixture of 48.5 g of water, 0.5 g of emulsifier 1 g acid, heated to 75°C, With constant stirring, add the preheated in a separate container to 125°C a mixture of 2 g of the absorbent 50/370 and 48 g of road bitumen BND 90/130 and mix until smooth.

The composition of the obtained emulsion of the following (wt.%): bitumen - 48, the emulsifier is 0.5, acid - 1, the absorbent 50/370 - 2, water - 48,5.

Example 3.

To a mixture of 48.5 g of water, 0.5 g of emulsifier 1 g acid, heated to 75°C, With constant stirring, add the preheated in a separate container to 125°C a mixture of 3 g of the absorbent 50/370 and 47 g of road bitumen BND 90/130 and mix until smooth.

The composition of the obtained emulsion of the following (wt.%): bitumen - 47, the emulsifier is 0.5, acid - 1, the absorbent 50/370 - 3, water - 48,5.

Example 4.

To a mixture of 48.5 g of water, 0.5 g of emulsifier 1 g acid, heated to 75°C, With constant stirring, add the preheated in a separate container to 125°C a mixture of 4 g of the absorbent 50/370 and 46 g of road bitumen BND 90/130 and mix until smooth.

The composition of the obtained emulsion of the following (wt.%): bitumen - 46, the emulsifier is 0.5, acid - 1, the absorbent 50/370 - 4, water - 48,5.

Example 5.

To a mixture of 48.5 g of water, 0.5 g of emulsifier, 1 the acid, heated to 75°C, With constant stirring, add the preheated in a separate container to 125°C a mixture of 5 g of the absorbent 50/370 and 45 g of road bitumen BND 90/130 and mix until smooth.

The composition of the obtained emulsion of the following (wt.%): bitumen - 45, the emulsifier is 0.5, acid - 1, the absorbent 50/370 - 5, water - 48,5.

Example 6.

To a mixture of 49.3 g of water, 0.2 g of emulsifier, 0.5 g acid, heated to 75°C, With constant stirring, add the preheated in a separate container to 125°C a mixture of 1 g of absorbent 50/370 and 49 g of road bitumen BND 90/130 and mix until smooth.

The composition of the obtained emulsion of the following (wt.%): bitumen - 49, emulsifier - 0.2, acid - 0.5, absorbent 50/370 - 1, water - 49,3.

Example 7.

To a mixture of 49.3 g of water, 0.2 g of emulsifier, 0.5 g acid, heated to 75°C, With constant stirring, add the preheated in a separate container to 125°C a mixture of 2 g of the absorbent 50/370 and 48 g of road bitumen BND 90/130 and mix until smooth.

The composition of the obtained emulsion of the following (wt.%): bitumen - 48, emulsifier - 0.2, acid - 0.5, absorbent 50/370 - 2, water - 49,3.

Example 8.

To a mixture of 49.3 g of water, 0.2 g of emulsifier, 0.5 g acid, heated to 75°C, With constant stirring, add the preheated in a separate container to 125°C a mixture of 3 g of the absorbent 50/370 and 47 g of road bitumen bn is 90/130 and mix until smooth.

The composition of the obtained emulsion of the following (wt.%): bitumen - 47, emulsifier - 0.2, acid - 0.5, absorbent 50/370 - 3, water - 49,3.

Example 9.

To a mixture of 49.3 g of water, 0.2 g of emulsifier, 0.5 g acid, heated to 75°C, With constant stirring, add the preheated in a separate container to 125°C a mixture of 4 g of the absorbent 50/370 and 46 g of road bitumen BND 90/130 and mix until smooth.

The composition of the obtained emulsion of the following (wt.%): bitumen - 46, emulsifier - 0.2, acid - 0.5, absorbent 50/370 - 4, water - 49,3.

Example 10.

To a mixture of 49.3 g of water, 0.2 g of emulsifier, 0.5 g acid, heated to 75°C, With constant stirring, add the preheated in a separate container to 125°C a mixture of 5 g of the absorbent 50/370 and 45 g of road bitumen BND 90/130 and mix until smooth.

The composition of the obtained emulsion of the following (wt.%): bitumen - 45, emulsifier - 0.2, acid - 0.5, absorbent 50/370 - 5, water - 49,3.

For comparison we offer samples of emulsions with the prototype were prepared two samples of the emulsions according to the prior art (examples 11-12).

Example 11.

In 49,7 g road bitumen (according to GOST 22245-90)heated to a temperature of 110°C, add with stirring 0.3 g of cationic emulsifier. The aqueous phase is prepared as follows: to 48.5 g of water is added with stirring 0.5 g anhydrous heavy pyrolysis resin (SCC) and 1.0 g of hydrochloric acid and then heated with stirring to 85°C, then add a mixture of bitumen with an emulsifier having a temperature of 110°C and stirred until complete homogeneity.

The composition of the obtained emulsion of the following (wt.%): bitumen - 49,7, emulsifier and 0.3, acid - 1,0, TPS - 0,5, water - 48,5.

Example 12.

In 49,7 g road bitumen (according to GOST 22245-90)heated to a temperature of 110°C, add with stirring 0.3 g of cationic emulsifier and 2.0 g of anhydrous TPS. The aqueous phase is prepared as follows: 47,0 g of water, add 1.0 g of hydrochloric acid, mix thoroughly, heat the solution to a temperature of 85°C, then add heated to 110°C. a mixture of bitumen, emulsifier and heavy pyrolysis resin. Mix until smooth.

The composition of the obtained emulsion of the following (wt.%): bitumen - 49,7, emulsifier and 0.3, acid - 1,0, TPS - 2,0, water - 47,0.

Physico-mechanical properties of bitumen emulsions prepared according to examples 1-12, are given in table 2.

The proposed bituminous emulsion is superior to the prototype in terms of resistance to delamination when stored over 30 days. When this emulsion is not inferior to the prototype in terms of adhesion of the film binder with mineral material (and even slightly exceeds 100% of the square against 96%), and it is also possible to control the decomposition rate of the emulsion with the same content of the emulsifier.

tr>
Table 1
Physico-chemical properties of the absorbent 50/370, product OJSC "Nizhnekamskneftekhim" (TU 2411-139-05766801-2007)
Name of indicatorNorma
1. AppearanceThe fluid is dark in color
2. Density at 15°C, g/cm30.800 to 1,050
3. Initial boiling point, °C, min.50
4. The temperature of the end boiling point, °C, not above370
5. The number of fractions, wikipeida to a temperature of 300°C., about. per cent, not less than45
6. Test copper plateWithstands
7. Mass fraction of gums, mg/100 cm3not more thanNot specified
8. The content of free waterNo

Table 2
The operating characteristic is erotici bitumen emulsions
The composition and properties of bitumen emulsionsNumber example
12345678910Prototype*
1112
1. The content of components in the emulsion, wt.%:
Bitumen494847464549484746 4549,749,7
Emulsifier0,50,50,50,50,50,20,20,20,20,20,30,3
Water48,548,548,548,548,5to 49.3to 49.3to 49.3to 49.3to 49.348,547,0
Absorbent 50/3701234512345--
TPS- ---------0,52,0
Reagent for neutralizing emulsifier111110,50,50,50,50,511
2. The decay rate when mixed with quartz sand, g sand /100 g emulsion380320313308295336327323315300100185
3. Adhesion of mineral materials, % of area981009593100989793929596
4. The viscosity at 20°C through the waste hole 3 mm, s18,921,023,625,526,217,419,622,024,024,82324
Ontouchevent when stored withinSeparation is not observedSeparation is not observed
7 days
30 days
35 daysSplits
60 days
6. The ability of the emulsion to handle wet mineral materialSurface Kama the aqueous material is covered with a film of binder

Bitumen emulsion comprising bitumen, emulsifier based on amines, diamines, polyamines and Quaternary ammonium salts, hydrochloric acid as a reagent to neutralize the emulsifier, water and an additional component, characterized in that as an additional component it contains absorbent 50/370 at the following content, wt.%:

Bitumen45-59
Emulsifier0,2-0,5
Reagent for neutralizing emulsifier1-2
Absorbent 50/3701-5
WaterRest



 

Same patents:

FIELD: chemistry.

SUBSTANCE: invention relates to production of road construction materials and specifically to binding compositions based on organic binding substances, which can be used in building or repairing roads and aerodrome surfaces. The invention pertains to a complex structured bitumen-rubber binder for road surface, containing devulcanised rubber crumbs and organic binder - construction bitumen, as well as water treatment wastes from oil refineries - floatation oil sludge containing the following, wt %: 50-70 % organic component (including hydrocarbons: methane 75-85%; naphthene 10-20%; aromatic 3-10%); 50-30% inorganic component (including particle size: less than 10 mcm 50-65%; less than 20 mcm 80-85%; less than 100 mcm 95-99%; greater than 100 mcm less than 2%) with specific surface area of 880-920 m2/kg; with moisture of not more than 15-20% (in excess of organic and inorganic components given in the composition), with the following ratio of components, wt %: bitumen 82.5-92.5; rubber crumbs 2.5-7.5; floatation oil sludge 5-10.

EFFECT: longevity of binder with improved rheological characteristics, considerable reduction in cost owing to longer life of the road asphalt coating.

1 tbl

FIELD: chemistry.

SUBSTANCE: invention relates to a method of preparing a composition of polymer-modified bitumen binder essentially in the absence of cross-linking agents, according to which a bitumen component is heated in a mixing basin to 185-221°C, a block-copolymer composition is added to the bitumen component, while mixing the bitumen component until formation of a homogenous mixture of the block copolymer, and the homogenous mixture is continuously stirred while maintaining temperature of 185-221°C for 4-30 hours, thereby obtaining a cured composition of polymer-modified bitumen binder. The block copolymer composition used in the method contains a di-block copolymer containing one block of monovinylaromatic hydrocarbon and one block diene with conjugated double bonds having maximum molecular weight of 30000-78000 and vinyl content of 35-80 mol % based on the number of repeating monomer links in the diene block with conjugated double bonds, and one or possibly more block-copolymers containing at least two blocks of a monovinylaromatic hydrocarbon and at least one block of a diene with conjugated double bonds, a block copolymer selected from linear tri-block copolymers, having maximum molecular weight which is 1.5-3.0 times greater than maximum molecular weight of the di-block copolymer, multi-beam block copolymers having maximum molecular weight which is 1.5-9.0 times greater than maximum molecular weight of the di-block copolymer, and their mixtures, where each block copolymer contains 35-80 mol % vinyl, based on the number of repeating monomer links in the diene block with conjugated double bonds, and where, when both components (1) and (2) are present in the block copolymer composition, the ratio of (1) to (2) is greater than 1:1. The invention also relates to an alternative version of the method, a bitumen binder composition and a block copolymer composition.

EFFECT: improved technological characteristics of compositions.

25 cl, 8 tbl, 15 ex

FIELD: chemistry.

SUBSTANCE: adhesive additive based on maleinised low molecular weight polybutadiene contains bound maleic anhydride in amount of 21.5-33 wt %, alkenyl succinic anhydride as described in claim 1, with weight ratio of maleinized low molecular weight polybutadiene: alkenyl succinic anhydride equal to 25-85:75-15. The range of batching said adhesive additive per bitumen composition equals 0.4-0.8 wt %. When using the additive, there is no need for pre-mixing the adhesive additive with thermoplastic. Owing to this, the bitumen composition is prepared in a single step. The polymer-bitumen composition with an additive is characterised by high level of adhesion of mineral filler to alkaline and acidic mineral filler.

EFFECT: adhesive additive is characterised by dynamic viscosity of 0,2-1,0 Pa·s, can be easily batched and has good distribution in the bitumen composition.

1 tbl, 10 ex

FIELD: construction.

SUBSTANCE: composition for producing roofing materials includes the following components, wt %: ground wastes of bitumen roofing materials on glass base 1 - 20.0, spent oil products 3.0-16.0, wastes of thermoplastic polymers 1.0-5.0, waste paper 1-10.0, ground wastes of bitumen roofing materials, ruberoid - balance. Method of composition production is characterised.

EFFECT: improved consumer properties of material and reduction of its prime cost.

2 cl, 1 dwg, 9 tbl, 10 ex

FIELD: chemistry.

SUBSTANCE: present invention relates to anhydrous bitumen products which contain bitumen and one or more of the following additives: A) a product of reacting (di)alk(en)ylphenols with aldehydes; B) (poly)oxyethylated and/or (poly)oxypropylated copolymer of 2,2-bis(4-hydroxyphenyl)propane and epichlorohydrin; C) (poly)oxyethylated and/or (poly)oxypropylated copolymer of bis(4-hydroxyphenyl)ethane and epichlorohydrin; D) (poly)oxyethylated and/or (poly)oxypropylated copolymer of bis(4-hydroxyphenyl)methane and epichlorohydrin; E) a product of (poly)oxyethylation and/or (poly)oxypropylation of alkyldicarboxylic acid or a mixture of alkyldicarboxylic acids; F) a product of (poly)oxyethylation and/or (poly)oxypropylation of a fatty acid; G) a product of the reaction between a product A and a mixture of products E and F; H) a salt of alk(en)yl(aryl)sulfonic acid and alk(en)yl(aryl)amine, a salt of dodecylbenzenesulfonic acid and a fatty amine, as well as a salt of dodecylbenzenesulfonic acid and cyclohexylamine; I) a salt of alk(en)yl(aryl)sulfonic acid and morpholine, or pyrazine, or pyrazoline, or pyrazolone, or pyridine, or pyridine, or pyrimidine, or pyrrole, or pyrrolidine, or pyrrolidone, or pyrroline, or toluidine, or imidazole, or indole, or indoline, or oxindole, a salt of dodecylbenzenesulfonic acid and morpholine.

EFFECT: addition of additives lowers the temperature for preparing a mixture of thickener and bitumen product by 20-40°C.

10 cl, 3 ex

FIELD: chemistry.

SUBSTANCE: invention relates to a method of producing bitumen polymer materials, involving mixing heavy petroleum material and a polymer in a mixer at homogenisation temperature and output of the end product. The polymer used is polyethylene. A graph of melting point and adhesion of the bitumen polymer material versus its composition and a graph of adhesion versus melting point of the bitumen polymer material are plotted and the required ratio of heavy petroleum material and polyethylene is then chosen based on given melting point and/or adhesion from the plotted graphs.

EFFECT: obtaining bitumen polymer materials with predetermined characteristics, cutting on consumption of initial components and reduced power consumption.

2 cl, 4 ex, 6 dwg

FIELD: chemistry.

SUBSTANCE: additive is obtained through synthesis of a fatty base with dropping temperature of 30-35°C, taken in amount of 70±2 % of the weight of the reaction mixture, and higher polyamines - fr. 235-310°C. The method is realised at temperature of 140-150°C. The fatty base used is the following mixture: gossypol resin and wastes from distillation of fatty acids in ratio of 60:40 wt %, wastes from distillation of fatty acids and crude tall oil in ratio of 80:20 wt %, wastes from distillation of fatty acids, gossypol resin, crude tall oil in ratio of 40:50:10 wt %.

EFFECT: obtaining a double-action adhesive bituminous additive with good characteristics, reduced power consumption on heating before use and higher fire safety, lower cost.

4 cl, 3 ex

FIELD: transport.

SUBSTANCE: invention relates to railway transport, particularly to methods of anchoring subrail elements in track concrete base and can be used in tunnels and subways to attach rails to concrete sleepers. Proposed method consists in arranging subrail elements in recesses made in concrete base. Grooves are made in adjacent vertical surfaces of the base and every said element along subrail element perimetre. Said elements are secured in said base with the help of molten thermoplastic adhesive. Said recesses are heated to 60-70°C. At the same time, said thermoplastic adhesive is heated to cold flow, said adhesive being composed of the following ingredients: bitumen - 60%, rubber - 25%, ethylsilicate - 10%, portland cement - 5%. Said adhesive is used to fill concrete base recess. Then subrail elements forced into concrete base recess.

EFFECT: higher holding power and track reliability.

2 dwg

FIELD: chemistry.

SUBSTANCE: invention relates to asphalt compositions and asphalt concrete. The invention relates to an asphalt compositions containing: naphthenic asphalt and a block-copolymer containing diene groups which form a block characterised by content of a 1,2-vinyl component of at least 15 wt % and less than 35 wt %. The invention also relates to asphalt concrete.

EFFECT: reduced cracking and creep rapture of the road surface.

14 cl

FIELD: chemistry.

SUBSTANCE: invention relates to materials used in constructing and repairing automobile roads, and specifically to road surface binding materials. The invention pertains to a road surface binder which contains a block-copolymer of alkadiene and styrene and industrial oil, as well as tar or a tar mixture with VU580=60-160 s, with the following ratio of components, in wt %: tar or tar mixture with VU580=60-160 s 83.0-91.3; industrial oil 5.0-12.0; block-copolymer of alkadiene and styrene 3.5-5.0.

EFFECT: road surface composition meets all quality requirements for binding materials on GOST R 52056-2003 for polymer-bitumen binder PBV 40, PBV 60, PBV 90 and PBV 130, and bitumen is replaced with tar which is cheaper and readily available (due to exclusion of the step for oxidising tar to produce bitumen).

3 tbl

FIELD: highway building and repair, in particular surface treatment of pavements.

SUBSTANCE: claimed emulsion contains (mass %) mineral material 83.5-87.5 and cation bitumen emulsion 11.5-14.5. Mineral material additionally contains cement 1.0-2.0; cation bitumen emulsion contains (mass %) bitumen 60/90 59.0-65.0; cation emulsifier 0.7-0.9; surfactant admixture 0.15-0.25; calcium chloride 0.07-0.13; hydrochloric acid 0.35-0.60; oxyethylated phenolic alcohol 0.65-0.80; and balance: water.

EFFECT: mixture with improved adhesive quality of binder with mineral acidic and basic rocks; improved strength characteristic, increased water resistance coefficient, enhanced emulsion decay time.

1 ex, 4 tbl

Bitumen emulsion // 2244725

FIELD: road-building materials.

SUBSTANCE: pavement-intended bitumen emulsion contains, wt %: bitumen, 45-49; surfactant-type emulsifier in the form of amines, diamines, polyamines, and quaternary ammonium salts, 0.125-0.25; aqueous hydrochloric acid for neutralization of emulsifier, 1-2; additionally, polyalkylbenzene resin produced as by-product in isopropylbenzene production process, 1-15; and water, the balance.

EFFECT: increased resistance of bitumen component to oxidative ageing processes without losses in other performance characteristics.

2 tbl, 12 ex

FIELD: highway and aerodrome engineering, in particular binder for highway engineering.

SUBSTANCE: claimed binder contains (mass %): bitumen 95-98.5; propylene pentamers (waste from fractionation of propylene oligomers to produce propylene trimers and dimers).

EFFECT: decreased brittle point, improved adhesion, and increased elasticity.

1 ex, 3 tbl

FIELD: road, industrial and civil building, in particular sealing and hydraulic insulating material.

SUBSTANCE: invention relates to industrial method for production of modified bitumen mastic. Claimed bitumen-polymer material contains (mass %) oil bitumen 60-70; synthetic resin 2-10; oil solvent and/or black oil 18-30; sulfur-containing compounds 0.5-5.0; and additionally oxyethylated alkylphenol as surfactant 0.1-5.0. Sulfated mixture of oil bitumen, synthetic resin, oil solvent and/or black oil treated for sulfitation at 140-2300C is used as sulfur-containing compounds. Method for production of said material also is disclosed.

EFFECT: polymer-modified bitumen mastic and sealing of improved quality; method for production of increased capability; inexpensive raw materials; energy-conversation technology.

6 cl, 3 ex, 4 tbl, 1 dwg

FIELD: manufacture of road building materials.

SUBSTANCE: process comprises compounding commercial bitumen (92.5-97.5%) with petroleum processing product (2.5-7.5%), in particular bitumen converter, which is preliminarily obtained in the form of straight-run petroleum fraction from heavy low-paraffin naphthenic-base petroleum with kinematic viscosity 65-85 cSt at 50°C. Commercial bitumen is characterized by penetration at least 68 (25°C) and stretchability above 150 cm at 25°C.

EFFECT: improved performance characteristics of product and simplified manufacture technology.

4 tbl, 4 ex

FIELD: manufacture of road building materials.

SUBSTANCE: process comprises compounding lacquering bitumen (trade mark "G", 75-95%) with road bitumen (10-25%) characterized needle penetration depth 65-110 dmm (25°C) and stretchability 150 cm at 25°C. Bitumen of mark G is preliminarily reduced to fragments and compounding is carried out for 30-45 min at 170-180°C.

EFFECT: simplified bitumen manufacture technology and enabled control of quality of hot asphalt-concrete mixes.

4 tbl, 9 ex

FIELD: production of polyurethane-bitumen composition for encapsulants, hydraulic insulating and anticorrosion insulating coats for various surfaces (concrete, metal, etc).

SUBSTANCE: claimed composition contains (mass %): bitumen/shale mastic 70-95; prepolymer mixture 5-30. Said prepolymer mixture is based on polyoxypropylenetriols and isocyanate component, wherein the first prepolymer is based on mixture of polyoxypropylenetriols with molecular mass of 300-6000 and toluylenediisocyanate in ratio of (80-85):(20-15), respectively, and the second one is based on mixture of polyoxypropylenetriols with molecular mass of 300-6000 and hexamethylenediisocyanate in ratio of (65-80):(50-20), respectively, and mass ration of the first and second prepolymers in mixture is (80-50):(50-20).

EFFECT: material with increased elongation, tensile strength, decreased water adsorption, attrition, controllable coat hardness and elasticity.

7 ex, 1 tbl

FIELD: building industry, in particular production of bitumen emulsions for roof claddings, hydraulic insulating materials, binder for organomineral mixtures and cold blacktops.

SUBSTANCE: claimed emulsion contains (mass %) bitumen 47-50; mixture of cotton oil secondary reprocessing product with flotogoudron in ratio of (40-70):(60-30) 3.0-5.0; sodium hydroxide 0.6-1.0 or potassium hydroxide 0.3-0.8; and balance: water. Claimed emulsion is obtained by preparation of emulsifier from part of mixture of cotton oil secondary reprocessing product with flotogoudron (namely slop from distillation of vegetable oil fatty acids), when agitation with preheated sodium hydroxide or potassium hydroxide aqueous solution up to full mixture dissolution to produce finished emulsifier aqueous solution followed by introducing when agitation of heated bitumen being mixed with residual mentioned above mixture.

EFFECT: bitumen particles with decreased surface tension and coalescence; more active interaction between bitumen and emulsifier aqueous solution; stable emulsion with prolonged storage time.

2 cl, 2 tbl

FIELD: manufacture of building materials.

SUBSTANCE: bitumen-polymer composition, which can be used in road building to create asphalt-concrete pavements, aerodrome and bridge surfaces, is constituted by divinylstyrene thermoplastic elastomer, 1.0-5.0%, plasticizer, 1.0-20.0%, antioxidant, 0.05-5.0%, and bitumen, the rest. Manufacturing method comprises component mixing stages and conditions of stages.

EFFECT: stabilized physicochemical performance characteristics and shortened manufacture time.

3 cl, 2 tbl, 4 ex

FIELD: manufacture of building materials.

SUBSTANCE: bitumen-polymer mastic, which can be used for sealing joints and cracks in concrete and asphalt-concrete pavements, as well as in construction of industrial and civil buildings, is constituted by divinylstyrene thermoplastic elastomer, 3.0-12.0%, plasticizer, 1.0-50.0%, antioxidant, 0.05-5.0%, filler 3.0-50, and bitumen, the rest. Manufacturing method comprises component mixing stages and conditions of stages.

EFFECT: stabilized performance characteristics and shortened manufacture time.

3 cl, 2 tbl, 4 ex

Up!