Millennialmedia cationic bitumen emulsion and emulsion-mineral mixture based on it

 

(57) Abstract:

The group of inventions relates to the field of road construction and maintenance and can be used for devices with a thin protective layer of wear of road surfaces from cold cast resin emulsion-mineral mixtures using as a binder millennialmedia cationic bitumen emulsion. Object of the invention is to obtain coverage in the form of a thin protective layer with high wear resistance, frost resistance and elastic-plastic properties by providing a sharp decay of the emulsion in the mixture in a controlled period of time, and also improve adhesion, elasticity and elasticity of the residual binder selected from the emulsion. Millennialmedia cationic bitumen emulsion containing bitumen, cationic emulsifier amine-type polymer and adhesive additives, hydrochloric acid and water, further comprises kerosene, as polymer additives it contains latex, which represents a cationic dispersion based on a copolymer of butadiene and styrene with a dry residue of 64%, as an adhesive additive is a hydrocarbon triamine with alkalinity 3,0-3,7 (HCl), cache polyamine with alkalinity 4,3-4,65 (HCl) at the following ratio of components, wt.%: bitumen - 60-62, the above cationic emulsifier - 0,8-1,1, the above hydrocarbon triamine - 0,02-0,05, the above latex - 2-6, kerosene - 1-3, hydrochloric acid is 0.4 to 0.8, water - the rest. Emulsion-mineral mixture comprises a mineral material, the above melanorosaurus cationic bitumen emulsion and water, additionally contains cement and aluminum sulfate in the following ratio weight.h.: mineral material - 100, millennialmedia cationic bitumen emulsion - 12-16, cement - 0,1-3, aluminum sulfate, and 0.1 - 2, water - 9-14. 2 C. p. F.-ly, 4 PL.

The group of inventions relates to the field of road construction and maintenance and can be used for devices with a thin protective layer of wear of road surfaces from cold cast resin emulsion-mineral mixtures using as a binder millennialmedia cationic bitumen emulsion.

Known cationic bitumen emulsion containing oil road oil, emulsifier (primary aliphatic amines WITH17-C20), hydrochloric acid and water in the following ratio, wt.%: oil road bitumen - 48-58, emulsifier - 1,2-1,3, hydrochloric acid 33% concentration - 0,6-0,65, water - other (see, auto, bull. No. 10).

The disadvantage bitumomineraljnykh mixture on the basis of known cationic bitumen emulsion is a fast mixing time up to the complete collapse of the emulsion (60 ° C) and accelerated the formation of the wear layer (15-60 min).

In addition, the known emulsion is slightly concentrated, from the binder has a low ductility, which does not ensure high performance coatings in the form of a thin protective layer of wear produced from cast (i.e. superdense) mixture.

Closest to millennialmedia cationic bitumen emulsion (the first of the claimed invention), the set of essential characteristics is millennialmedia cationic bitumen emulsion containing bitumen BND 60/90, cationic emulsifier amine type cationic reagent “BEAM, rubber TPR STEP, BMF (phosphatidyl concentrate), hydrochloric acid, calcium chloride and water in the following ratio, wt.%: bitumen BND 60/90 - 51-55, cationic reagent “BEAM” - 1,1-1,45, rubber TPR STEP - 0,85-1,30, BMF - 1,1-1,70, hydrochloric acid of 0.5-0.7, calcium chloride, and 0.1 to 0.14, water-other (see RF patent for the invention №2183600, “Dense emulsion-mineral mixture is one hundred (of crumb rubber from vulcanized waste) and adhesively plasticizing agents - fuse (phosphatide concentrate) used for the modification of bitumen increases the adhesion and elastic-plastic properties of emulsion-mineral mixtures using known millennialmedia cationic bitumen emulsion.

However, the use of known millennialmedia cationic bitumen emulsion does not allow its controlled sharp decay in emulsion-mineral mixtures

In addition, the emulsion is not homogeneous due to the impossibility of complete dissolution of the rubber crumb coating obtained by forming a mixture based on it, has no need for thin layers of wear elongation and frost.

Known bituminaria mixture intended for the device thin protective layers of pavements containing mineral material, cationic bitumen emulsion, polyamines stabilizer period of decay and water in the following ratio, wt.h.: mineral material - 100, cationic bitumen emulsion - 10-35, stabilizer - 0,2-1,1, water - 5-30 (see USSR author's certificate for invention №658154, “Bituminaria mixture”, MCI C 08 L 95/00, publ. 25.04.1979,, bull. No. 15).

Stabilizatio and increases or decreases the term of the collapse of the mixture depending on its content.

Known bituminaria mix though and gives the resulting coating is quite high wear resistance (abrasion) - 2,8-5,8% by weight and permeability, but does not provide a sharp collapse of the emulsion in the mixture after a time delay, since the mixing time up to the complete collapse of the emulsion ranges 55-190 seconds.

In addition, the resulting coating has a low resistance and fracture toughness (tensile strength in bending at minus 10°C).

Known cast asphalt mixture for paving roads, containing sand, mineral powder, bitumen and the water dispersion of tire rubber in the following ratio, wt.%: sand - 66-70, mineral powder - 21-25, bitumen - 8-9, aqueous dispersion of tyre rubber (solid) - 0.2 to 0.5 (see USSR author's certificate for invention №815011, “Asphalt mix”, MCI C 08 L 95/00, publ. 23.03.1981,, bull. No. 11).

Known cast asphalt concrete mix though and gives the resulting coating increased the fracture strength and the elongation at the expense of the additive aqueous dispersion of tyre rubber, but does not allow to control the decay time of the mixture and to form thin layers of wear of the cast mixture with the above is eenie group) on essential features is a dense emulsion-mineral mixture for paving on the roads, containing hydrated mineral material and melanorosaurus cationic bitumen emulsion in the following ratio, wt.%: mineral material - 85,0-89,0, millennialmedia cationic bitumen emulsion - 11,0-15,0 (see RF patent for the invention №2183600 “Thick emulsion-mineral mixture, MPK7 C 08 L 95/00, 04 26/26, publ. 20.06.2002 year).

The floor of the known emulsion-mineral mixtures has a high water and corrosion resistance, and millennialmedia cationic bitumen emulsion allows you to prepare a thick mixture having a long period of formation of a dense coating.

However, the known emulsion-mineral mixture provides controlled the abrupt collapse of the emulsion in the mixture, and therefore the resulting coating has poor frost resistance, adhesion and elongation for use of the resulting layer as thin layers of wear.

The claimed group of inventions is millennialmedia cationic bitumen emulsion and emulsion-mineral mixture, based on it provide for coverage in the form of a thin protective layer with high wear resistance, frost resistance is a period of time, and also improve adhesion, elasticity and elasticity of the residual binder selected from the emulsion.

This technical result is achieved by the fact that known millennialmedia cationic bitumen emulsion containing bitumen, cationic emulsifier amine-type polymer and adhesive additives, hydrochloric acid and water, according to the first invention, further comprises kerosene, as polymer additives it contains latex, which represents a cationic dispersion based on a copolymer of butadiene and styrene with a dry residue of 64%, as an adhesive additive is a hydrocarbon triamine with alkalinity 3,0-3,7 (Hcl) as a cationic emulsifier amine type it contains emulsifier, a mixture of alkyl polyamine and amido polyamine with alkalinity 4,3-4,65 (Hcl) in the following ratio, wt.%: bitumen - 60-62, the above cationic emulsifier - 0,8-1,1, the above hydrocarbon triamine - 0,02-0,05, the above latex - 2-6, kerosene - 1-3, hydrochloric acid is 0.4 to 0.8, water - the rest.

According to the second invention of the known emulsion-mineral mixture containing mineral material, melanorosaurus cation b is I a cationic bitumen emulsion is used melanorosaurus cationic bitumen emulsion according to the first invention, in the following ratio weight.h.: mineral material - 100, millennialmedia cationic bitumen emulsion - 12-16, cement - 0,1-3, aluminum sulfate, and 0.1 - 2, water - 9-14.

According to the first invention of the claimed composition millennialmedia cationic bitumen emulsion at the specified ratio of the components provides for obtaining highly concentrated bitumen-latex emulsion with improved adhesive properties and a sharp decay when mixed at a specified time in which to receive flowable binder having a high elongation and elasticity, including at 0°C, which gives high flexibility and resistance to frost.

The introduction of kerosene in the composition millennialmedia emulsion in the present limits increases the wettability (i.e., the ability to envelop) emulsion of mineral material that promotes better mixing and laying the mixture, especially at low ambient temperatures, which extends the temperature range laying of the mixture and reduces the viscosity of the obtained residual binder.

Introduction to the composition of the emulsion adhesive additives in the inventive range, which use hydrocarbon triamine, both the conducting polymer additives in the inventive range, which use cationic dispersion based on a copolymer of butadiene and styrene with a dry residue of 64%, which is the latex (ie emulsion of synthetic rubber), emulsion of bitumen, and not directly to the bitumen with obtaining modified bitumen as it is in the closest analogue, can be obtained from the emulsion polymer asphalt binder with improved and predictable physico-chemical properties, namely, the advanced interval plasticity, low temperature brittleness and increased frost resistance due to physico-chemical interactions in the aqueous phase components, precluding diffusion of the difficulties of distribution and interaction of molecules of the components.

Use in the inventive emulsion-mineral mixtures claimed millennialmedia cationic bitumen emulsion provides for the formation of the optimal time of the protective layer, including the destruction of the bitumen emulsion, dewatering and coalescence of binder in a continuous phase, in which setting (selection of clean water) occurs no earlier than 15 minutes, and completing the formation of the coating is 2-4 hours depending on the weather in the claimed limits allows you to completely control the time of the emulsion in the mixture, namely, to ensure a rapid decay after 110-120 seconds in all weather conditions.

The resulting uniformity of the inventive emulsion and the mixture at the specified composition and the number of components does not require increasing the decay time of the emulsion in the mixture.

The abrupt collapse of the emulsion in the mixture leads to more rapid maturation of coverage that is achieved maximally dense packing of mineral grains and the binder is uniformly distributed over the volume as a continuous bitumen film by improving the characteristics of the residual binder after the collapse while maintaining the rheological properties of bitumen (i.e. yield strength, wettability and plasticity).

The result is the ability to produce a durable coating of the cast emulsion-mineral mixtures using millennialmedia cationic bitumen emulsion through the cold technology.

Both technical solutions are interrelated and form a single inventive concept.

To obtain coverage in the form of a thin protective layer of cast emulsion-mineral mixtures with the desired properties was created a new millennialmedia cationic bitumen amamou emulsion in the inventive emulsion-mineral mixtures allows to provide technical result - to obtain coverage in the form of a thin protective layer with high wear resistance, frost resistance and elastic-plastic properties by providing a sharp decay of the emulsion in the mixture in a controlled period of time, and also improve adhesion, elasticity and elasticity of the residual binder selected from the emulsion.

Therefore, the claimed technical solution to satisfy the requirement of unity of invention.

Technical solutions, which coincides with the set of essential features of the claimed group of inventions is not revealed, which allows to make a conclusion about their compliance with this condition of patentability as “novelty”.

The essential features of the claimed invention, determining the receipt of the indicated technical result that is explicitly not follow from the prior art, although there are solutions containing characteristics that match with the distinctive signs of the second invention group.

The analysis showed that the use of powdered mineral supplements (e.g., cement) in a similar mixtures is known, but the known technical solutions of these additives, improving granulometric composition of mineral Napo is helicene decay time necessary additional processing of the powder stabilizer, which is used as the solution of the emulsifier based on expensive and scarce surfactants (see “Methodological recommendations on the thin protective layer of emulsion-sand mixture on black pavements”, Soundarya, M., 1971).

In the claimed technical solution used in the composition of the mixture of additives cement in combination with aluminum sulfate in the protected limits provides controlled the abrupt collapse of the emulsion in the mixture in the range of 110-120 with without having to extend the interval for better mixing.

Thus, the identified technical solution, although it has the signs consistent with the essential features of the second invention of the claimed group of inventions, does not provide the claimed technical result, therefore, we can conclude according to the second invention group of inventions condition of patentability “inventive step”.

The condition of patentability “industrial applicability” confirm specific examples of obtaining millennialmedia cationic bitumen emulsion and emulsion-mineral mixtures using this emulsion, described in section “Sodiuma emulsion is manufactured using petroleum road bitumen grades BND, meet GOST 22245-90, cationic emulsifiers amine type, which is a mixture of alkyl polyamine and amido polyamine alkalinity 4,3-4,65 (model HC1), such as, for example, emulsifiers “Polyram” French company “Seka”, in particular, the emulsifier brand "Polyram L 80", adhesive additives in hydrocarbon analogue alkalinity 3,0-3,7 (Hcl), in particular, the adhesion additive of the brand "Polyram L 200" French company “Seka”, latexes, which is the cationic dispersion based on a copolymer of butadiene and styrene with a dry residue 64%such as, for example, latexes “Butonal” German firm Basf, in particular, latex brand “Butonal NS 198”.

To prepare millennialmedia cationic bitumen emulsion used the following components.

1. Bitumen

For the preparation of emulsions used bitumen grade BND 90/130 with the following physico-mechanical characteristics, which are shown in table 1.

Physical-mechanical parameters of the initial bitumen meets the requirements of GOST 22245-90.

2. Cationic emulsifier amine type.

To the emulsion were used cationic emulsifier amine type French company "Seca" tx2">

3. The latex.

As the latex used latex “Butonal NS 198” the German company Basf. Chemical characterization: aqueous dispersion, comprising 64% of polymer based on butadiene and styrene and 36% of the aqueous phase.

Physical and chemical properties of latex: state - liquid homogeneous, color - white odor - slightly fragrant, pour point - 0°C, the boiling point is 100°C explosion limits - no, a density of 0.95 g/cm3the solubility in water miscible pH 4,2-5,2, dispersion type is cationic, the diameter of the particles is 0.1 to 2.5 μm, viscosity = 1600 mPaS, frost - non-frost resistant.

4. Hydrocarbon triamine.

As the hydrocarbon analogue was used adhesive additive brand "Polyram L 200" French company “Seca” (chemical composition: derived alkylbromides analogue), which has the following characteristics: state - liquid at 20°C, density 0.9 g/cm3viscosity - 70 spois, pour point <15°C, flash point 230°C, alkalinity - 3,0-3,7 (Hcl).

5. Kerosene:

Used aviation kerosene T-1 with limits of boiling 135-280°C.

6. Hydrochloric acid.

For the cooking

Water to the emulsion had a hardness of 6 mEq/L.

Preparation millennialmedia cationic bitumen emulsion was carried out in the following order.

Preparation of the aqueous phase of the emulsion was carried out alternately in two separate tanks with a volume of 2000 liters. In the tank were recruited 1200-1400 liters of warm water (heated to a temperature of 40-50°C), through the dipstick in the same tank filled in the required amount of hydrochloric acid and integrated mixer, then through the dipstick was filled in the required amount of emulsifier, and then the adhesion additive and kerosene. The level of the aqueous phase of the emulsion was brought to 1800 liters, after which it was mixed five to ten minutes, while the pH of the aqueous phase of the emulsion is brought to the value of 2.0 to 2.4.

Next were dehydration and heat the bitumen to a temperature of 140-145°C.

Then joined colloid mill Rincheval, where sequentially through the pipeline was desirables prepared aqueous phase of the emulsion, bitumen and latex.

Further, by combining the dispersion in the mill was preparing millennialmedia cationic bitumen emulsion, that is the Miscibility with mineral materials to the class ABC-3 ecoglasnost, presented in examples 1-3.

Example 1. Composition, %:

Bitumen BND 90/130 60

Emulsifier “Polyram L 80” 0,9

Additive “Polyram L 200” 0,02

Kerosene 1,0

Latex “Butonal NS 198” 2,0

Hydrochloric acid is 0.6 (until pH 2.0)

Water to 100

Example 2. Composition, %:

Bitumen BND 90/130 60

Emulsifier “Polyram L 80” 0,9

Additive “Polyram L 200” 0,02

Kerosene 1,0

Latex “Butonal NS 198” 3,0

Hydrochloric acid is 0.6 (until pH 2.0)

Water to 100

Example 3. Composition, %:

Bitumen BND 90/130 60

Emulsifier “Polyram L 80” 0,9

Additive “Polyram L 200” 0,02

Kerosene 1,0

Latex “Butonal NS 198” 5,0

Hydrochloric acid is 0.6 (until pH 2.0)

Water to 100

The results of a comparative study of various formulations millennialmedia cationic bitumen emulsions and their physico-mechanical parameters are shown in table 3.

From table 3 it follows that millennialmedia bitumen cationic emulsion of the proposed structure provides superior quality binder after the collapse of the emulsion, namely, high ductility at 0°C and elasticity at 25&# rocks the degree of coupling which is 97-98%, which increases the frost resistance, adhesion and elastic-plastic properties of emulsion-mineral mixtures for making thin layers of wear.

For the preparation of emulsion-mineral mixtures were used the following components.

Mineral material.

As a mineral material was used gravel fraction 0-10 mm

Table 4 shows the particle size distribution of this material.

Granulometric composition of mineral material is selected in accordance with the requirements of the SSM (“Branch road technique ROSAVTODOR “Methodical recommendations on the protective layer of cast emulsion-mineral mixtures like “Slurry forces”, M, 2001).

2. Millennialmedia cationic bitumen emulsion (emulsion preparation described above).

3. Aluminum sulfate.

As of aluminum sulfate was used aluminium sulphate Al2(SO4)·nH2O, corresponding to GOST 12966-85.

Chemical characterization: mass fraction of Al2O3- 16%, mass fraction of water-insoluble precipitate of 0.1%, the mass is the mass fraction of As in terms of As2O3(III) is 0.001%.

4. Cement

As the cement was used cement M400.

5. Water.

Water to the emulsion had a hardness of 6 mEq/L.

Preparation of emulsion-mineral mixtures was carried out as follows.

Used mixer-dispenser SOM-1000 German firm “Viro”.

The components of the mixture of mineral material (crushed rock), cement, water, aluminium sulphate were introduced simultaneously into the mixer, after 2-5 with in the mixer was introduced millennialmedia cationic bitumen emulsion, after which all the components of the mixture were thoroughly mixed in the distribution box of the mixer, equipped with augers.

Prepared emulsion-mineral mixture had the following composition shown in example 4.

Example 4. Composition in weight.h.:

The gravel fraction 0-10 mm 100

Millennialmedia bitumen

cationic emulsion 14

Cement M400 0,7

Aluminum sulfate (20% solution) 1,2

Water 12

Prepared emulsion-mineral blend used for the device of the wear layer on avtomobilebudivnyi this mixture is 110-120 seconds under various weather conditions (including at low ambient temperature up to +5°C).

Samples of pavement, taken directly at the device layer, was tested for wear resistance index wet abrasion.

Test results of the wear resistance of the samples show that all samples have the indicators wet abrasion within 85,98 - 250,66 g/m2at a rate of up 806 g/cm2(see “Industry road technique ROSAVTODOR “Methodical recommendations on the protective layer of cast emulsion-mineral mixtures like “Slurry Forces), 2001, S. 9), which confirms the improvement of wear resistance of the coating of the inventive emulsion-mineral mixtures in 4 - 5 times.

Thus, controlled by the abrupt collapse of the emulsion in the mixture leads to more rapid maturation of the coating, thereby improving the characteristics of the residual binder after the collapse while maintaining the rheological properties of the bitumen, which provides, in General, to obtain coverage in the form of a thin protective layer with high wear resistance, frost resistance and elastic-plastic properties.

1. Millennialmedia cationic bitumen emulsion containing bitumen, cationic emulsifier amine-type polymer and adhesive additives, soy additives it contains latex, represents a cationic dispersion based on a copolymer of butadiene and styrene with a dry residue of 64%, as an adhesive additive is a hydrocarbon triamine with alkalinity 3,0-3,7 (HCl) as a cationic emulsifier amine type it contains an emulsifier which is a mixture of alkyl polyamine and amidopolyamine with alkalinity 4,3-4,65 (HCl) in the following ratio, wt.%:

Bitumen 60-62

The above cationic emulsifier 0,8-1,1

The above hydrocarbon triamine 0,02-0,05

The above latex 2-6

Kerosene 1-3

Hydrochloric acid 0,4-0,8

Water The Rest

2. Emulsion-mineral mixture containing mineral material, melanorosaurus cationic bitumen emulsion and water, wherein the emulsion-mineral mixture additionally contains cement and aluminum sulfate, and as millennialmedia cationic bitumen emulsion is used melanorosaurus cationic bitumen emulsion under item 1 in the following ratio, wt.h.:

Mineral material 100

Millennialmedia cationic bitumen emulsion 12-16

Cement 0,1-3,0

Aluminum sulfate

 

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