CN104650803A - Preparation method for novel asphalt cold-mixing cold-paving adhesive - Google Patents
Preparation method for novel asphalt cold-mixing cold-paving adhesive Download PDFInfo
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- CN104650803A CN104650803A CN201410841724.9A CN201410841724A CN104650803A CN 104650803 A CN104650803 A CN 104650803A CN 201410841724 A CN201410841724 A CN 201410841724A CN 104650803 A CN104650803 A CN 104650803A
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Abstract
The invention discloses a preparation method for a novel asphalt cold-mixing cold-paving adhesive. The preparation method comprises the following steps: adding heated hot asphalt, a modifier and an emulsifier aqueous solution to an emulsifying machine according to a required constant proportion, emulsifying to form the novel asphalt cold-mixing cold-paving adhesion liquid. According to the preparation method for the novel asphalt cold-mixing cold-paving adhesive, the cold-mixing cold-paving adhesion liquid, mixed aggregates, mixed additives and water are designed according to the optimal mix proportion, and can be widely applied to cold mixing and cold paving of a fog sealing layer, an ultrathin sealing coat and a newly constructed surface layer; heating is not needed and no toxic, odorous and pungent smell exists, so that the construction environment and intensity at burning hot days can be greatly improved, the operability is strong because the adhesive is mixed on the field when in use, the construction time is flexibly regulated and prolonged, and the major policies support and development direction of the national energy conservation and emission reduction policy are completely matched.
Description
Technical field
The present invention is specifically related to a kind of preparation method of novel asphalt cold mixing cold-application binding material.
Background technology
The method preparing master bond liquid in pitch cold mixing cold-application binding material in the world mainly contains two kinds: agitator method and colloid milling.
Agitator method feature is simple, but production efficiency is low, gained
mainbonding liquid lack of homogeneity some, some pitch particles are less than 1 micron, and what have is then greater than 10 microns.The form of agitator is a lot, its structure size and agitator shaft speed differ greatly, and the speed of stir shaft is mostly between 8.3 ~ 200r/s, and the capacity of steel basin has many specifications according to purposes and industrial scale, use for laboratory can be little of 0.1 ~ 2L, production can arrive 2500L greatly.
Colloidal mill prepares master bond liquid at present to use maximum emulsifying devices, and mainly comprise rotor and stator two portions, rotor is high speed rotating in the stator, and both gaps are about 0.25 ~ 0.5mm, can regulate.Owing to having adjustable gap between stator, rotor, per minute turns scooter thousands of turns or up to ten thousand turns, is more satisfactory colloidal dispersions equipment.During preparation master bond liquid, pitch and emulsifier aqueous solution are subject to strong shearing force effect after entering colloidal mill, make pitch be broken into very little droplet, and droplet surface is with electric charge, and the Coulomb repulsion of identical charges stops droplet to be polymerized mutually.The pitch particle of products obtained therefrom is evenly distributed, particle diameter average out to 1 ~ 2 micron.Along with the development in epoch, colloidal mill is significantly improved and improves on material, curvature etc., but its essentially consist does not have very large change, mainly by between stator, rotor owing to running up produced shearing force and play grinding, dissemination.
(1) emulsification of modifying asphalt
The method of modifying asphalt emulsification is: first by dissolution with solvents or mechanical shearing effect, the properties-correcting agent of the high molecular polymer such as rubber, plastics class is made to be dispersed in pitch with tiny particulate homogenous, and form reticulated structure after being cross-linked in a variety of manners, cause asphalt performance to be improved greatly, thus produce modifying asphalt; And then carry out emulsification production modified emulsifying asphalt with the modifying asphalt finished product produced.
There is a following difficult problem in the technical elements that is emulsified in of modifying asphalt: during to asphalt modification, and the equipment that shearing force is very strong need be adopted to carry out, but when shearing force is too strong, shearing action can make the reticulated structure of formation destroy, and modified effect declines; The extremely difficult emulsification of modifying asphalt, the emulsifying agent requiring performance extremely excellent ability emulsification: during emulsification, modifying asphalt and the soap lye temperature difference are comparatively large, easily seethe with excitement, cause emulsification to be difficult to carry out; Finished product temperature after emulsification is higher, easily causes the emulsion breaking of harsh product; The density of modifying asphalt is large, and the pitch particle granularity after emulsification is comparatively large, poor storage stability.
(2) modification again after asphalt emulsification
Heated bitumen is joined among mulser together with emulsifier aqueous solution, forms common emulsified asphalt, and then with the high-speed stirring mixing by a certain percentage of properties-correcting agent emulsion, form modified emulsifying asphalt, i.e. a cold mixing method.
Summary of the invention
Goal of the invention: in order to solve the deficiency of existing road cold mixing cold-application new material technology, the invention provides a kind of preparation method of novel asphalt cold mixing cold-application binding material, in pitch cold mixing cold-application binding material, the preparation of master bond liquid mainly carries out modification and emulsification to pitch, and the modified emulsifying asphalt of upgrading by adding polymkeric substance composite aqueous emulsion.
Technical scheme: a kind of preparation method of novel asphalt cold mixing cold-application binding material, comprises the steps:
(1) emulsifying step of master bond liquid and pitch cold mixing cold-application binding material mix-design:
(1) styrene-butadiene-styrene thermoplastic elastomer aqueous latex is prepared;
(2) in styrene-butadiene-styrene thermoplastic elastomer aqueous latex, add the blending emulsion of the self-crosslinking modified acrylate emulsion (FG-H1811) of ethylene-vinyl acetate water miscible liquid (FG-CP606W)/anti-strong acid of positively charged ion, and be optimized compound; When FG-CP606W/FG-H1811 blending ratio is 80/20, emulsion has optimum performance; During CP606W/H1811 blending emulsion with the aqueous latex+optimization of styrene-butadiene-styrene thermoplastic elastomer, viscosifying power strong (than improving more than 1 times with styrene-butadiene-styrene thermoplastic elastomer aqueous latex modified emulsifying asphalt separately), resistance to elevated temperatures good (than improving 16 DEG C with styrene-butadiene-styrene thermoplastic elastomer aqueous latex modified emulsifying asphalt separately)
(3), in normal temperature pitch composite emulsion, the weight percent of styrene-butadiene-styrene thermoplastic elastomer aqueous latex is 6%-10%, FG-CP606W/FG-H1811 blending emulsion (80/20) is 8%-15%, and pitch is 55%-65%, and water is 25%-35%;
(4) composite good by above-mentioned mass ratio the CP606W/ H1811 of styrene-butadiene-styrene thermoplastic elastomer aqueous latex and optimization, and add wooden amine cation asphalt emulgent: 2%-3.5%, one piece is mixed with seed soap lye;
(5) heated bitumen is mixed by certain mass ratio containing sulfur crosslinking agent with tasteless: dosage of crosslinking agent is heated bitumen 0.3%-1.0%;
(6) step (4) and step (5) gained mixture are joined together in mulser, seed soap lye temperature controls at 50-60 DEG C, and heated bitumen temperature controls at 135-150 DEG C, and the storage time controls more than 4 hours, final obtained normal temperature pitch composite emulsion;
(2) preparation of novel asphalt cold mixing cold-application binding material:
Described cold mixing cold-application binding material is made up of according to parts by weight following component: the basalt aggregate of mixing 100 parts, mixed additive 1.5-5.0 part, cold mixing cold-application bonding liquid 7.0-10.5 part, water 0.5-2.0 part;
The preparation of described novel asphalt cold mixing cold-application binding material: formed by above-mentioned pitch cold mixing cold-application bonding liquid, the basalt aggregate adding appropriate water-moistened mixing and homemade mixed additive mix.
As optimization: described mixed additive is made up of according to parts by weight following component: powder anti-stripping agent 10-16 part, breeze 8-13 part, polymer glue powder 11-15 part and special cement 4-8 part.This mixed additive reaction water yield is large, and water regain is large; Can meet with a part of aqueous phase in master bond liquid and hydration reaction occurs, in pitch cold mixing cold-application bonding compound, produce the toughness reinforcing crystallization hydrated product of primitive fiber.
As optimization: in described step (6), the temperature range of seed soap lye is 50-60 DEG C.
As optimization: in described step (6), the temperature range of heated bitumen is 140-150 DEG C.
Beneficial effect: the present invention adopts second heat hybrid system: join in the middle of mulser with properties-correcting agent, emulsifier aqueous solution by the heated bitumen of heating together with required fixed proportion, carry out emulsification, forms a kind of novel asphalt cold mixing cold-application bonding liquid.The cold mixing cold-application of mist sealing, ultra-thin sealing coat and newly-built surface layer can be widely used in.Owing to not needing heating, do not give out again poisonous unpleasant sharp aroma, construction environment in hot weather and intensity can be improved well, workable: job mix, with with mixing, the adjustment of independent and flexible ground and prolongation engineering time, meet large support on policy and the developing direction of country's " energy-saving and emission-reduction " completely.
Concrete advantage is as follows:
Accompanying drawing explanation
Fig. 1 is a cold mixing method process flow diagram of modification again after asphalt emulsification;
Fig. 2 is process flow diagram of the present invention.
Embodiment
Below in conjunction with specific embodiment, the invention will be further described.For those skilled in the art, under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Specific embodiment 1
A preparation method for novel asphalt cold mixing cold-application binding material, comprises the steps:
(1) emulsifying step of master bond liquid and pitch cold mixing cold-application binding material mix-design:
(1) styrene-butadiene-styrene thermoplastic elastomer aqueous latex is prepared;
(2) in styrene-butadiene-styrene thermoplastic elastomer aqueous latex, add the blending emulsion of the self-crosslinking modified acrylate emulsion (FG-H1811) of ethylene-vinyl acetate water miscible liquid (FG-CP606W)/anti-strong acid of positively charged ion, and be optimized compound; When FG-CP606W/FG-H1811 blending ratio is 80/20, emulsion has optimum performance;
(3), in normal temperature pitch composite emulsion, the weight percent of styrene-butadiene-styrene thermoplastic elastomer aqueous latex is 6%, FG-CP606W/FG-H1811 blending emulsion (80/20) is 8%, and pitch is 55%, and surplus is water;
(4) composite good by above-mentioned mass ratio the CP606W/ H1811 of styrene-butadiene-styrene thermoplastic elastomer aqueous latex and optimization, and add wooden amine cation asphalt emulgent: 2%, one piece is mixed with seed soap lye;
(5) heated bitumen is mixed by certain mass ratio containing sulfur crosslinking agent with tasteless: dosage of crosslinking agent is heated bitumen 0.3%;
(6) step (4) and step (5) gained mixture are joined together in mulser, seed soap lye temperature controls at 50 DEG C, and heated bitumen temperature controls at 135 DEG C, and the storage time controls more than 4 hours, final obtained normal temperature pitch composite emulsion;
(2) preparation of novel asphalt cold mixing cold-application binding material:
Described cold mixing cold-application binding material is made up of according to parts by weight following component: the basalt aggregate of mixing 100 parts, mixed additive 1.5 parts, cold mixing cold-application bonding liquid 7.0 parts, 0.5 part, water;
The preparation of described novel asphalt cold mixing cold-application binding material: formed by above-mentioned pitch cold mixing cold-application bonding liquid, the basalt aggregate adding appropriate water-moistened mixing and homemade mixed additive mix.
Described mixed additive is made up of according to parts by weight following component: the anti-stripping agent of powder 10 parts, breeze 8 parts, polymer glue powder 11 parts and special cement 4 parts.This mixed additive reaction water yield is large, and water regain is large; Can meet with a part of aqueous phase in master bond liquid and hydration reaction occurs, in pitch cold mixing cold-application bonding compound, produce the toughness reinforcing crystallization hydrated product of primitive fiber.
Specific embodiment 2
A preparation method for novel asphalt cold mixing cold-application binding material, comprises the steps:
(1) emulsifying step of master bond liquid and pitch cold mixing cold-application binding material mix-design:
(1) styrene-butadiene-styrene thermoplastic elastomer aqueous latex is prepared;
(2) in styrene-butadiene-styrene thermoplastic elastomer aqueous latex, add the blending emulsion of the self-crosslinking modified acrylate emulsion (FG-H1811) of ethylene-vinyl acetate water miscible liquid (FG-CP606W)/anti-strong acid of positively charged ion, and be optimized compound; When FG-CP606W/FG-H1811 blending ratio is 80/20, emulsion has optimum performance;
(3), in normal temperature pitch composite emulsion, the weight percent of styrene-butadiene-styrene thermoplastic elastomer aqueous latex is 10%, FG-CP606W/FG-H1811 blending emulsion (80/20) is 15%, and pitch is 65%, and surplus is water;
(4) composite good by above-mentioned mass ratio the CP606W/ H1811 of styrene-butadiene-styrene thermoplastic elastomer aqueous latex and optimization, and add wooden amine cation asphalt emulgent: 3.5%, one piece is mixed with seed soap lye;
(5) heated bitumen is mixed by certain mass ratio containing sulfur crosslinking agent with tasteless: dosage of crosslinking agent is heated bitumen 1.0%;
(6) step (4) and step (5) gained mixture are joined together in mulser, seed soap lye temperature controls at 60 DEG C, and heated bitumen temperature controls at 150 DEG C, and the storage time controls more than 4 hours, final obtained normal temperature pitch composite emulsion;
(2) preparation of novel asphalt cold mixing cold-application binding material:
Described cold mixing cold-application binding material is made up of according to parts by weight following component: the basalt aggregate of mixing 100 parts, mixed additive 5.0 parts, cold mixing cold-application bonding liquid 10.5 parts, 2.0 parts, water;
The preparation of described novel asphalt cold mixing cold-application binding material: formed by above-mentioned pitch cold mixing cold-application bonding liquid, the basalt aggregate adding appropriate water-moistened mixing and homemade mixed additive mix.
Described mixed additive is made up of according to parts by weight following component: the anti-stripping agent of powder 16 parts, breeze 13 parts, polymer glue powder 15 parts and special cement 8 parts.This mixed additive reaction water yield is large, and water regain is large; Can meet with a part of aqueous phase in master bond liquid and hydration reaction occurs, in pitch cold mixing cold-application bonding compound, produce the toughness reinforcing crystallization hydrated product of primitive fiber.
Specific embodiment 3
A preparation method for novel asphalt cold mixing cold-application binding material, comprises the steps:
(1) emulsifying step of master bond liquid and pitch cold mixing cold-application binding material mix-design:
(1) styrene-butadiene-styrene thermoplastic elastomer aqueous latex is prepared;
(2) in styrene-butadiene-styrene thermoplastic elastomer aqueous latex, add the blending emulsion of the self-crosslinking modified acrylate emulsion (FG-H1811) of ethylene-vinyl acetate water miscible liquid (FG-CP606W)/anti-strong acid of positively charged ion, and be optimized compound; When FG-CP606W/FG-H1811 blending ratio is 80/20, emulsion has optimum performance;
(3), in normal temperature pitch composite emulsion, the weight percent of styrene-butadiene-styrene thermoplastic elastomer aqueous latex is 8%, FG-CP606W/FG-H1811 blending emulsion (80/20) is 12%, and pitch is 59%, and surplus is water;
(4) composite good by above-mentioned mass ratio the CP606W/ H1811 of styrene-butadiene-styrene thermoplastic elastomer aqueous latex and optimization, and add wooden amine cation asphalt emulgent: 2.8%, one piece is mixed with seed soap lye;
(5) heated bitumen is mixed by certain mass ratio containing sulfur crosslinking agent with tasteless: dosage of crosslinking agent is heated bitumen 0.7%;
(6) step (4) and step (5) gained mixture are joined together in mulser, seed soap lye temperature controls at 54 DEG C, and heated bitumen temperature controls at 142 DEG C, and the storage time controls more than 4 hours, final obtained normal temperature pitch composite emulsion;
(2) preparation of novel asphalt cold mixing cold-application binding material:
Described cold mixing cold-application binding material is made up of according to parts by weight following component: the basalt aggregate of mixing 100 parts, mixed additive 4.2 parts, cold mixing cold-application bonding liquid 8.7 parts, 1.3 parts, water;
The preparation of described novel asphalt cold mixing cold-application binding material: formed by above-mentioned pitch cold mixing cold-application bonding liquid, the basalt aggregate adding appropriate water-moistened mixing and homemade mixed additive mix.
Described mixed additive is made up of according to parts by weight following component: the anti-stripping agent of powder 14 parts, breeze 11 parts, polymer glue powder 13 parts and special cement 6 parts.This mixed additive reaction water yield is large, and water regain is large; Can meet with a part of aqueous phase in master bond liquid and hydration reaction occurs, in pitch cold mixing cold-application bonding compound, produce the toughness reinforcing crystallization hydrated product of primitive fiber.
Claims (4)
1. a preparation method for novel asphalt cold mixing cold-application binding material, is characterized in that: comprise the steps:
(1) emulsifying step of master bond liquid and pitch cold mixing cold-application binding material mix-design:
(1) styrene-butadiene-styrene thermoplastic elastomer aqueous latex is prepared;
(2) in styrene-butadiene-styrene thermoplastic elastomer aqueous latex, add the blending emulsion of the self-crosslinking modified acrylate emulsion (FG-H1811) of ethylene-vinyl acetate water miscible liquid (FG-CP606W)/anti-strong acid of positively charged ion, and be optimized compound; When FG-CP606W/FG-H1811 blending ratio is 80/20, emulsion has optimum performance;
(3), in normal temperature pitch composite emulsion, the weight percent of styrene-butadiene-styrene thermoplastic elastomer aqueous latex is 6%-10%, FG-CP606W/FG-H1811 blending emulsion (80/20) is 8%-15%, and pitch is 55%-65%, and water is 25%-35%;
(4) composite good by above-mentioned mass ratio the CP606W/ H1811 of styrene-butadiene-styrene thermoplastic elastomer aqueous latex and optimization, and add wooden amine cation asphalt emulgent: 2%-3.5%, one piece is mixed with seed soap lye;
(5) heated bitumen is mixed by certain mass ratio containing sulfur crosslinking agent with tasteless: dosage of crosslinking agent is heated bitumen 0.3%-1.0%;
(6) step (4) and step (5) gained mixture are joined together in mulser, seed soap lye temperature controls at 50-60 DEG C, and heated bitumen temperature controls at 135-150 DEG C, and the storage time controls more than 4 hours, final obtained normal temperature pitch composite emulsion;
(2) preparation of novel asphalt cold mixing cold-application binding material:
Described cold mixing cold-application binding material is made up of according to parts by weight following component: the basalt aggregate of mixing 100 parts, mixed additive 1.5-5.0 part, cold mixing cold-application bonding liquid 7.0-10.5 part, water 0.5-2.0 part;
The preparation of described novel asphalt cold mixing cold-application binding material: formed by above-mentioned pitch cold mixing cold-application bonding liquid, the basalt aggregate adding appropriate water-moistened mixing and homemade mixed additive mix.
2. the preparation method of novel asphalt cold mixing cold-application binding material according to claim 1, is characterized in that: described mixed additive is made up of according to parts by weight following component: powder anti-stripping agent 10-16 part, breeze 8-13 part, polymer glue powder 11-15 part and special cement 4-8 part.
3. the preparation method of novel asphalt cold mixing cold-application binding material according to claim 1, it is characterized in that: in described step (6), the temperature range of seed soap lye is 50-60 DEG C.
4. the preparation method of novel asphalt cold mixing cold-application binding material according to claim 1, it is characterized in that: in described step (6), the temperature range of heated bitumen is 140-150 DEG C.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109824318A (en) * | 2019-01-16 | 2019-05-31 | 北京建筑大学 | A kind of cold mixing cold-application anionic emulsified bitumen and preparation method thereof, application |
| CN110144787A (en) * | 2019-05-15 | 2019-08-20 | 江苏阜光工程新技术有限公司 | A kind of super construction technology for gluing ultra-thin stress absorbing layer |
| CN111410913A (en) * | 2019-01-04 | 2020-07-14 | 中国石油化工股份有限公司 | Modified sand-containing fog sealing layer material and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111410913A (en) * | 2019-01-04 | 2020-07-14 | 中国石油化工股份有限公司 | Modified sand-containing fog sealing layer material and preparation method thereof |
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Application publication date: 20150527 |