CN103665899A - Modified asphalt-based filling and sealing agent using waste foam and preparation method thereof - Google Patents
Modified asphalt-based filling and sealing agent using waste foam and preparation method thereof Download PDFInfo
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Abstract
The invention relates to a modified asphalt-based filling and sealing agent using waste foam and a preparation method thereof. The filling and sealing agent contains heavy traffic paving asphalt, a polystyrene resin particle, a surfactant, a plasticizer, a modifier, an antifoaming agent, a filling material and water, wherein the polystyrene resin particle is prepared from waste polystyrene foam products. The filling and sealing agent is a uniform grey black liquid, has a pH value of 9 to 10, solid content of 75 to 85%, a residue softening point of no less than 78 DEG C, residue penetration of 39 to 80 dmm, a flow value of 3 to 8 mm after surface drying, an elastic recovery rate of 46 to 66%, bonding strength of no less than 0.4 MPa and no water seepage at a pressure of 0.3 MPa; and a sample does not fracture in 3 weeks when drawn by 50% at a low temperature of -10 DEG C to -20 DEG C; cold filling and sealing or hot filling and sealing in an on-site heating manner can be adopted for the filling and sealing agent, and storage stability of the filling and sealing agent lasts for 12 months. The preparation method has the advantages of low cost, simple preparation technology and easily available raw materials.
Description
Technical field
The invention belongs to pavement construction material technical field, be specifically related to the embedding agent of crack for bituminous pavement, cement concrete pavement, seam embedding repairing etc.
Background technology
Along with expanding economy, resource shortage becomes increasingly conspicuous, the regeneration of waste and scrap, again use very important.In various plastics, polystyrene (PS) and expansible polystyrene (FPS) widespread use, in recent years, the annual consumption in whole world polystyrene 10 million ton, and be ascendant trend year by year.Alarming, be even that the waste and old product of this class are not degraded under field conditions (factors) for 200 years, present polystyrene can exert an influence to several generations and even ten several generations' living environment, has caused serious " white pollution ", causes ecotope to go from bad to worse.To this, be devoted to the research of its substitute all over the world, because substitute exists cost high, performance index do not reach the problems such as requirement and are difficult to extensively applicable.How waste and old polystyrol is reasonably recycled, be the focus that scientific worker pays close attention to always.
By highway in China in 2010 total kilometrage that is open to traffic, be 400.82 ten thousand highways, wherein motorway mileage is 7.41 ten thousand highways, and overload and heavy duty, the severe factors such as weather condition of China further worsen road pavement performance.Compare external, the preventive maintenance of China's road and normal maintenance task more seriously, more urgent, maintenance new technology and New Maintenance Material are proposed to higher technical requirements simultaneously.Preventive maintenance maintenance emphasis is the timely embedding on road surface, stops water infiltration roadbed on road surface, causes whole pavement structure to destroy, and to country, brings huge property damage.The Embedding Material of bituminous pavement mainly contains at present: heated bitumen, emulsified bitumen, silicone, urethane etc.While adopting the embedding of ordinary hot pitch, ordinary hot pitch under high-temperature condition, the low phenomenon that is prone to bellding and is taken away by vehicle of softening temperature, during low temperature, pitch can become fragile again, easily comes off; And it is considerably less to adopt modification heated bitumen to pour into the pitch of pavement crack because the large trickling penetrating quality of viscosity of modifying asphalt is poor, so very easily ftracture when pavement crack low temperature is expanded, repairing is short work-ing life.In eu-bitumen (emulsification) admixture solvent, the low-temperature fluidity penetrating quality of pitch is improved, but high-temperature stability elastic recovery properties reduces, when summer high temperature, easily overflow and by vehicle, taken away road pavement and pollute, Easy open during winter low temperature.Silicone embedding agent advantage is: the storage time is long, mechanical strength is moderate; Shortcoming is: grow set time, have obvious irritating smell,, poor permeability and expensive poor to the adhesive property of bituminous concrete, be not suitable with the extensive use of highway maintenance.Encapsulating polyurethane agent has high thixotropic, and high tensile strength, good elasticity, good weatherability are not trickled, had in the construction of facade and top, and oil resistance is good, resistance to biological aging, the advantage such as moderate.But it can not be heat-resisting for a long time, single-component developing agent storage stability packed and ectocine larger, conventionally solidify under slow, hot environment and may produce bubble and crackle, polyurethane sealant water tolerance is also poor simultaneously, particularly alkaline-resisting water-based is not good enough, and this also affects the use of polyurethane sealant in maintenance of surface.Therefore have that hypertonicity, good high-temperature stability, low-temperature cracking-resistance, good elasticity are recovered, the research and production of cheap embedding agent also becomes increasingly conspicuous.China Patent No. (CN200410010907.2) high-performance pavement of road gap-grouting material and production technique; Concrete technology comprises: modifying asphalt is heated to 130-150 ℃, the aromatic oil that adds 4-10 parts by weight, by whipping appts, stirred, stir to add together with the rubber agent powder of 15-25 parts by weight and the softening agent of 3-8 parts by weight simultaneously and stir, during stirring, guarantee that temperature is not less than 130 ℃.The positively effect of this invention material is: the low-temperature ductility of material (5 ℃) is greater than 60 centimetres, and penetrative index PI is 4.0-7.0, and equivalent softening temperature can reach 60-85 ℃, and equivalent brittle point reaches-60～-100 ℃, and recovery of elasticity can reach 98-100%.This invention rubber agent powder storage stability in pitch is poor, is prone to laminated segregation; Carry out road surface embedding and execute man-hour requirement that embedding agent is heated to front viscosity is large, be unfavorable for that rapid construction repairs; When rubber agent powder volume is too much, low-temperature cracking-resistance is poor.China Patent No. (CN201310132488.9) a kind of joggle beam structure embedding agent and preparation and application thereof: be a kind of high-performance bicomponent epoxy resin agent stick, by epoxy resin, reactive thinner, amine curing agent, toughner, promotor and high performance adjuvant, formed.Wherein, by weight percentage: epoxy resin 50～70%; Reactive thinner 0～30%; Amine curing agent 15～50%; Toughner 0～20%; Promotor 0～5%; Coupling agent 0～5%; High performance adjuvant 0～5%.The shortcoming of this invention is: the thinner of employing and amine curing agent proportion are higher, and noxious gas emission is larger, large to producers and site operation personnel's physical impairment, and formula adopts epoxy resin difficult curing and expensive simultaneously.The research and the patent that waste and old polystyrol are applied to road surface Embedding Material are almost blank.
Summary of the invention
On the one hand, for waste and old polystyrol is reasonably recycled, on the other hand, the problems referred to above that exist in order to solve pavement seam filling material, the invention provides a kind of modifying asphalt base embedding agent and preparation method who utilizes waste foam.
The present invention utilizes waste polyethylene itself to have macromolecular chain, the feature that corrosion-resistant, intensity is high, forms the liquid Embedding Material of excellent property after will be fused with heavy traffic paving asphalt after its rational emulsification, modification.
concrete technical solution is as follows:
In a kind of modifying asphalt base embedding agent that utilizes waste foam, contain 60%～75% heavy traffic paving asphalt, 4%～8% polystyrene resin particle, 3%～6% tensio-active agent, 0.8%～1.2% softening agent, 0.5～1.2% properties-correcting agent, 0.1%～0.2% defoamer, 0.5%～1% filler and 18%～30% water; Described polystyrene resin particle is to utilize discarded waste polystyrene foam plastic goods to make; The outward appearance of described modifying asphalt base embedding agent is even grey black liquid, and after pH value 9～10, solid content 75%～85%, residue softening temperature >=78 ℃, residue penetration degree 39～80dmm, surface drying, yield point value 3～8mm, elastic recovery rate 46%～66%, cohesive strength >=0.4Mpa, 0.3Mpa do not seep water, low temperature-10 ℃～-20 ℃ sample 50% time that stretches do not rupture for 3 weeks; Can adopt cold-penetration envelope, as need, accelerate surface drying time, can adopt on-the-spot type of heating, Heating temperature is no more than 80 ℃; Embedding agent storage stability is 12 months.
Described tensio-active agent is one or more mixture of Sodium dodecylbenzene sulfonate, condensation compound of alkyl phenol and epoxy ethane (OP-10), alkylphenol polyoxyethylene, sodium laurylsulfonate, sodium lauryl sulfate sodium stearate.
Described softening agent is dibutyl phthalate or phthalate or di-terpene or ethyl hexyl ester of epoxidized soybean oil or benzene sulfonamide acid esters.
Described filler is calcium carbonate or titanium dioxide or the zinc oxide of lightweight.
Described properties-correcting agent is one or more the mixture in resol, rosin, isocyanate, butyl acrylate; Described defoamer is tributyl phosphate.
Utilize the concrete operation step of preparing modifying asphalt base embedding agent of waste foam as follows:
(1) by waste polystyrene foam plastic dedusting, remove impurity, washing and drying, and be broken into polystyrene resin particle;
(2) heavy traffic paving asphalt is heated to 140 ℃～150 ℃, adds polystyrene resin particle, and stirring at low speed 30min, hot melt blend obtained;
(3) hot melt blend constant temperature in 145 ℃～155 ℃ baking ovens is cultivated to 1.5h, make the abundant swelling of polystyrene;
(4) hot melt blend of swelling is carried out to high speed shear, make polystyrene polymer can fully unfold, dissolve, evenly; Under 145 ℃～155 ℃ conditions of temperature, cultivate 1h subsequently, obtain high molecular polymer mix asphalt;
(5) properties-correcting agent, tensio-active agent and water is even according to massfraction short mix in mixing device, 70 ℃～75 ℃ soap lyes of formation temperature; The high molecular polymer mix asphalt of 135 ℃～140 ℃ of temperature is added in soap lye, in shredder, shear, mill, be cooled to 65 ℃～65 ℃ of temperature, obtain just joining mixed solution;
(6) in just joining mixed solution, add successively filler, softening agent and defoamer, rapid stirring 20min, is down to room temperature, obtains modifying asphalt base embedding agent; The outward appearance of described modifying asphalt base embedding agent is even grey black liquid, and after pH value 9～10, solid content 72%～80%, residue softening temperature >=78 ℃, residue penetration degree 39～80dmm, surface drying, yield point value 3～8mm, elastic recovery rate 46%～66%, cohesive strength >=0.4MPa, 0.3MPa do not seep water, low temperature-10 ℃～-20 ℃ sample 50% time that stretches do not rupture for 3 weeks; Can adopt cold-penetration envelope, as need, accelerate surface drying time, can adopt on-the-spot type of heating, Heating temperature is no more than 60 ℃; Embedding agent storage stability is 12 months.
The volume of described polystyrene resin particle is 1～1.5 ㎝
3.
Useful technique effect of the present invention embodies in the following areas:
1. selection and the mechanism of action of filling a prescription:
1). surface active agent emulsions is the dispersion of polymer particles in water; can reduce oil-water interfacial tension; by high-speed stirring, be convenient to oil content loose; and can form protective layer on drop surface; prevent cohesion; system is tended towards stability, so its character and consumption have direct relation to the performance of the stability of speed of response, dispersion system and product.The surfactant that the present invention adopts, had both utilized the mechanical stability of anion surfactant emulsion, utilized again non-tonic surface active agent emulsions to assist emulsion chemistry stability.The compound surfactant that the present invention adopts has good emulsification, wetting, dispersion, antistatic, anti-performance of hard water;
2). the selection of the massfraction of tensio-active agent.Surfactant total mass number is larger, the agent bundle of formation the more, can be stable surface-area also larger, emulsion system is more stable; Surfactant total mass number is fewer, and agent grain number is fewer, and agent plastochondria is long-pending also larger, and emulsion is unstable.The breakdown of emulsion time of the embedding agent of the comprehensive stability of emulsion of the present invention, preparation, the viscosity of embedding agent, determine the massfraction of tensio-active agent by outdoor test;
3). softening agent normally high boiling point, low volatilization, to heat and chemical reagent very stable organic compound all, should have certain consistency with polymkeric substance.Softening agent add the power that attracts each other that can weaken between macromolecular chain, macromole spacing is increased, the motion ratio of molecular chain is easier to, thereby has reduced the second-order transition temperature of polymkeric substance, makes it show at low temperatures elastomeric state.Through the polymkeric substance of plasticising, its fragility, lower hardness; And winter hardiness, snappiness, resistance to impact shock, elongation improve.The softening agent that the present invention is definite and polymerising ethylene have good consistency, and can effectively improve adhesive power, the ductility of embedding agent;
4). filler is selected and the mechanism of action.Because there is no hydrophilic radical in polystyrene molecule, water-intake rate is low, thereby it has good water resistance, but its poor heat resistance adds filler not only can reduce the cost of embedding agent, increases stability and the wear resistance of embedding agent;
5). properties-correcting agent is selected and the mechanism of action.In polystyrene molecular structure, not containing active group, belong to apolar substance, and the existence of phenyl ring can produce sterically hindered, reduce the kindliness of polystyrene macromolecular chain, hinder the diffusion of molecule, make to using polystyrene separately as filmogen poor adhesive force, rete is easy to come off.Therefore, when preparing embedding agent, must carry out modification to it, to strengthen coating adhesion.The modification of p-poly-phenyl ethene has been reacted by chemical graft, at the molecule of polystyrene, goes up introducing polar functional group, improves the polarity of polystyrene.In polystyrene molecular structure phenyl ring on corresponding benzyl position
more active, be vulnerable to the attack of living radical that decomposition of initiator produces, dehydrogenation produces macromolecular radical, and this free radical causes copolymerization, thereby on polystyrene molecular chain, forms some containing the side chain of carboxyl, ester group isopolarity group.The definite properties-correcting agent of the present invention select and consumption on consideration embedding agent cost basis, effectively p-poly-phenyl ethene carries out minor matters, improves its adhesive property and film forming properties.
2. waste foam is made full use of
It is raw material that waste polystyrene foam plastic and road heavy traffic paving asphalt are take in the present invention, low production cost, preparation technology is simple, raw material is easy to get, being easy to industrialization, is the effective way that waste polystyrene foam plastic is recycled, and can turn waste into wealth, save energy, eliminates white pollution and has broad application prospects.The present invention prepares embedding agent and has the features such as antiseptic property is good, storage time long, adhesive power is large, elastic shrinkage ability increases, anti-impact force is strong.
Embodiment
Below in conjunction with embodiment, the present invention is further described.
Major equipment has: crushing system, mixing device, agent body mill, temperature control system, metering system, heating system.
Embodiment 1
Component: according to mass percent meter, 72%SK70 heavy traffic paving asphalt, 6% polystyrene resin particle, 2% Sodium dodecylbenzene sulfonate+3.4%OP-10(tensio-active agent), 1.2% dibutyl phthalate (softening agent), 0.8% butyl acrylate (properties-correcting agent), the calcium carbonate of 0.8% lightweight (filler), 0.1% tributyl phosphate (defoamer), 13.7 % water.
Preparation method:
(1) by waste polystyrene foam plastic dedusting, remove impurity, washing and drying, and be broken into polystyrene resin particle, the volume of polystyrene resin particle is 1～1.5 ㎝
3;
(2) heavy traffic paving asphalt is heated to 150 ℃, adds polystyrene resin particle, and stirring at low speed 30min, hot melt blend;
(3) hot melt blend constant temperature in 150 ℃ of baking ovens is cultivated to 1.5h, make the abundant swelling of polystyrene;
(4) hot melt blend of swelling is carried out to high speed shear, make polystyrene polymer can fully unfold, dissolve, evenly; Under 155 ℃ of conditions of temperature, cultivate 1h subsequently, obtain high molecular polymer mix asphalt;
(5) properties-correcting agent, tensio-active agent and water is even according to massfraction short mix in mixing device, 75 ℃ of soap lyes of formation temperature; The high molecular polymer mix asphalt of 140 ℃ of temperature is added in soap lye, in shredder, shear, mill, be cooled to 65 ℃ of temperature, obtain just joining mixed solution;
(6) in just joining mixed solution, add successively filler, softening agent and defoamer, rapid stirring 20min, is down to room temperature, obtains thick modifying asphalt base embedding agent.
By < < highway engineering pitch and Asphalt Mixture Experiment rules > > (JTG E20-2011), < < lubricating grease and petrolatum cone penetration assay method > > (GB/T269-1991), ASTM standard (D5329-04, D1190-97), modifying asphalt base embedding agent is tested to detection.
The outward appearance of described modifying asphalt base embedding agent is even grey black liquid, and after pH value 9, solid content 83.8%, 87.5 ℃ of residue softening temperatures, residue penetration degree 39.4dmm, surface drying, yield point value 3.7mm, elastic recovery rate 46.3%, cohesive strength 0.48MPa, 0.3MPa do not seep water, the low temperature-10 ℃ sample 50% time that stretches do not rupture for 3 weeks; Can adopt cold-penetration envelope, as need, accelerate surface drying time, can adopt on-the-spot type of heating, Heating temperature is no more than 80 ℃; Embedding agent storage stability is 12 months.Be applicable to the hot condition of hot climate.
Embodiment 2
Component: according to mass percent meter, 69%SK70 heavy traffic paving asphalt, 4% polystyrene resin particle, 2% Sodium dodecylbenzene sulfonate and 3% condensation compound of alkyl phenol and epoxy ethane OP-10(tensio-active agent), 0.9% dibutyl phthalate (softening agent), 0.8% butyl acrylate (properties-correcting agent), the calcium carbonate (filler) of 0.7% lightweight, 0.1% tributyl phosphate (defoamer), 19.5 % water.
Preparation method:
(1) by waste polystyrene foam plastic dedusting, remove impurity, washing and drying, and be broken into polystyrene resin particle, the volume of polystyrene resin particle is 1～1.5 ㎝
3;
(2) SK70 heavy traffic paving asphalt is heated to 150 ℃, adds polystyrene resin particle, and stirring at low speed 30min, hot melt blend obtained;
(3) hot melt blend constant temperature in 145 ℃ of baking ovens is cultivated to 1.5h, make the abundant swelling of polystyrene;
(4) hot melt blend of swelling is carried out to high speed shear, make polystyrene polymer can fully unfold, dissolve, evenly; Under 150 ℃ of conditions of temperature, cultivate 1h subsequently, obtain high molecular polymer mix asphalt;
(5) properties-correcting agent, tensio-active agent and water is even according to massfraction short mix in mixing device, 70 ℃ of soap lyes of formation temperature; The high molecular polymer mix asphalt of 140 ℃ of temperature is added in soap lye, in shredder, shear, mill, be cooled to 65 ℃ of temperature, obtain just joining mixed solution;
(6) in just joining mixed solution, add successively filler, softening agent and defoamer, rapid stirring 20min, is down to room temperature, obtains thick modifying asphalt base embedding agent.
By < < highway engineering pitch and Asphalt Mixture Experiment rules > > (JTG E20-2011), ASTM standard (D5329-04, D1190-97), modifying asphalt base embedding agent is tested to detection.
The outward appearance of described modifying asphalt base embedding agent is even grey black liquid, and after pH value 10, solid content 79.3%, 80.3 ℃ of residue softening temperatures, residue penetration degree 57.2dmm, surface drying, yield point value 5.1mm, elastic recovery rate 50.3%, cohesive strength 0.41MPa, 0.3MPa do not seep water, the low temperature-15 ℃ sample 50% time that stretches do not rupture for 3 weeks; Can adopt cold-penetration envelope, as need, accelerate surface drying time, can adopt on-the-spot type of heating, Heating temperature is no more than 80 ℃; Embedding agent storage stability is 12 months.Be applicable to common weather condition.
Embodiment 3
Component: according to mass percent meter, 65% No. 100, CNOOC heavy traffic paving asphalt, 5% polystyrene resin particle, 2% Sodium dodecylbenzene sulfonate and 2.2%OP-10(tensio-active agent), 1.2% dibutyl phthalate (softening agent), 0.8% isocyanate+0.5% resol (properties-correcting agent), 0.6% zinc oxide (filler), 0.1% tributyl phosphate (defoamer), 22.5 % water.
Preparation method:
(1) by waste polystyrene foam plastic dedusting, remove impurity, washing and drying, and be broken into polystyrene resin particle, the volume of polystyrene resin particle is 1～1.5 ㎝
3;
(2) SK70 heavy traffic paving asphalt is heated to 145 ℃, adds polystyrene resin particle, and stirring at low speed 30min, hot melt blend obtained;
(3) hot melt blend constant temperature in 145 ℃ of baking ovens is cultivated to 1.5h, make the abundant swelling of polystyrene;
(4) hot melt blend of swelling is carried out to high speed shear, make polystyrene polymer can fully unfold, dissolve, evenly; Under 145 ℃ of conditions of temperature, cultivate 1h subsequently, obtain high molecular polymer mix asphalt;
(5) properties-correcting agent, tensio-active agent and water is even according to massfraction short mix in mixing device, 70 ℃ of soap lyes of formation temperature; The high molecular polymer mix asphalt of 135 ℃ of temperature is added in soap lye, in shredder, shear, mill, be cooled to 65 ℃ of temperature, obtain just joining mixed solution;
(6) in just joining mixed solution, add successively filler, softening agent and defoamer, rapid stirring 20min, is down to room temperature, obtains thick modifying asphalt base embedding agent.
By < < highway engineering pitch and Asphalt Mixture Experiment rules > > (JTG E20-2011), < < lubricating grease and petrolatum cone penetration assay method > > (GB/T269-1991), ASTM standard (D5329-04, D1190-97), modifying asphalt base embedding agent is tested to detection.
The outward appearance of described modifying asphalt base embedding agent is even grey black liquid, and after pH value 10, solid content 76.1%, 78.4 ℃ of residue softening temperatures, residue penetration degree 80.2dmm, surface drying, yield point value 5.1mm, elastic recovery rate 66.3%, cohesive strength 0.42MPa, 0.3MPa do not seep water, the low temperature-20 ℃ sample 50% time that stretches do not rupture for 3 weeks; Can adopt cold-penetration envelope, as need, accelerate surface drying time, can adopt on-the-spot type of heating, Heating temperature is no more than 80 ℃; Embedding agent storage stability is 12 months, is applicable to cold climate condition.
Claims (8)
1. a modifying asphalt base embedding agent that utilizes waste foam, is characterized in that: in described modifying asphalt base embedding agent, contain 60%～75% heavy traffic paving asphalt, 4%～8% polystyrene resin particle, 3%～6% tensio-active agent, 0.8%～1.2% softening agent, 0.5～1.2% properties-correcting agent, 0.1%～0.2% defoamer, 0.5%～1% filler and 18%～30% water; Described polystyrene resin particle is to utilize discarded waste polystyrene foam plastic goods to make; The outward appearance of described modifying asphalt base embedding agent is even grey black liquid, and after pH value 9～10, solid content 75%～85%, residue softening temperature >=78 ℃, residue penetration degree 39～80dmm, surface drying, yield point value 3～8mm, elastic recovery rate 46%～66%, cohesive strength >=0.4MPa, 0.3MPa do not seep water, low temperature-10 ℃～-20 ℃ sample 50% time that stretches do not rupture for 3 weeks; Can adopt cold-penetration envelope, as need, accelerate surface drying time, can adopt on-the-spot type of heating, Heating temperature is no more than 80 ℃; Embedding agent storage stability is 12 months.
2. a kind of modifying asphalt base embedding agent that utilizes waste foam according to claim 1, is characterized in that: tensio-active agent is one or more mixture of Sodium dodecylbenzene sulfonate, condensation compound of alkyl phenol and epoxy ethane (OP-10), alkylphenol polyoxyethylene, sodium laurylsulfonate, sodium lauryl sulfate sodium stearate.
3. a kind of modifying asphalt base embedding agent that utilizes waste foam according to claim 1, is characterized in that: softening agent is dibutyl phthalate or phthalate or di-terpene or ethyl hexyl ester of epoxidized soybean oil or benzene sulfonamide acid esters.
4. a kind of modifying asphalt base embedding agent that utilizes waste foam according to claim 1, is characterized in that: the calcium carbonate that filler is lightweight or titanium dioxide or zinc oxide.
5. a kind of modifying asphalt base embedding agent that utilizes waste foam according to claim 1, is characterized in that: properties-correcting agent is one or more the mixture in resol, rosin, isocyanate, butyl acrylate.
6. a kind of modifying asphalt base embedding agent that utilizes waste foam according to claim 1, is characterized in that defoamer is tributyl phosphate.
7. a kind of preparation method who utilizes the modifying asphalt base embedding agent of waste foam as claimed in claim 1, is characterized in that concrete preparation manipulation step is as follows:
(1) by waste polystyrene foam plastic dedusting, remove impurity, washing and drying, and be broken into polystyrene resin particle;
(2) heavy traffic paving asphalt is heated to 140 ℃～150 ℃, adds polystyrene resin particle, and stirring at low speed 30min, hot melt blend obtained;
(3) hot melt blend constant temperature in 145 ℃～155 ℃ baking ovens is cultivated to 1.5h, make the abundant swelling of polystyrene;
(4) hot melt blend of swelling is carried out to high speed shear, make polystyrene polymer can fully unfold, dissolve, evenly; Under 145 ℃～155 ℃ conditions of temperature, cultivate 1h subsequently, obtain high molecular polymer mix asphalt;
(5) properties-correcting agent, tensio-active agent and water is even according to massfraction short mix in mixing device, 70 ℃～75 ℃ soap lyes of formation temperature; The high molecular polymer mix asphalt of 135 ℃～140 ℃ of temperature is added in soap lye, in shredder, shear, mill, be cooled to 65 ℃～65 ℃ of temperature, obtain just joining mixed solution;
(6) in just joining mixed solution, add successively filler, softening agent and defoamer, rapid stirring 20min, is down to room temperature, obtains modifying asphalt base embedding agent; The outward appearance of described modifying asphalt base embedding agent is even grey black liquid, and after pH value 9～10, solid content 72%～80%, residue softening temperature >=78 ℃, residue penetration degree 39～80dmm, surface drying, yield point value 3～8mm, elastic recovery rate 46%～66%, cohesive strength >=0.4MPa, 0.3MPa do not seep water, low temperature-10 ℃～-20 ℃ sample 50% time that stretches do not rupture for 3 weeks; Can adopt cold-penetration envelope, as need, accelerate surface drying time, can adopt on-the-spot type of heating, Heating temperature is no more than 60 ℃; Embedding agent storage stability is 12 months.
8. a kind of preparation method who utilizes the modifying asphalt base embedding agent of waste foam according to claim 7, is characterized in that: the volume of described polystyrene resin particle is 1～1.5 ㎝
3.
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| CN104119686A (en) * | 2014-07-01 | 2014-10-29 | 孟鋆辉 | New steel pipeline anti-corrosion process adopting modified asphalt and polyethylene |
| CN106046821A (en) * | 2016-08-16 | 2016-10-26 | 东莞泰和沥青产品有限公司 | Foam modified asphalt composition |
| CN106117858A (en) * | 2016-07-29 | 2016-11-16 | 合肥广能新材料科技有限公司 | Polystyrene foam heat insulation material and preparation method thereof |
| CN108485287A (en) * | 2018-02-09 | 2018-09-04 | 山东星火科学技术研究院 | A kind of anti-ultraviolet ageing modified pitch and preparation method thereof |
| CN109749710A (en) * | 2019-01-22 | 2019-05-14 | 沈阳建筑大学 | A kind of anticoagulant ice agent and preparation method thereof using waste polystyrene foam preparation |
| CN110760194A (en) * | 2019-11-05 | 2020-02-07 | 长春建业集团股份有限公司 | Pavement crack pouring material and preparation method and application thereof |
| WO2021160974A1 (en) * | 2020-02-13 | 2021-08-19 | Eurovia | Unsaturated fluxing agents for bituminous binders |
| FR3119170A1 (en) * | 2021-01-28 | 2022-07-29 | Total Marketing Services | Compositions for producing waterproofing membranes, processes and associated membranes |
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| CN106046821A (en) * | 2016-08-16 | 2016-10-26 | 东莞泰和沥青产品有限公司 | Foam modified asphalt composition |
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| WO2021160974A1 (en) * | 2020-02-13 | 2021-08-19 | Eurovia | Unsaturated fluxing agents for bituminous binders |
| FR3107275A1 (en) * | 2020-02-13 | 2021-08-20 | Eurovia | UNSATURATED FLUX AGENTS FOR HYDROCARBON BINDERS |
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| WO2022162322A1 (en) * | 2021-01-28 | 2022-08-04 | Totalenergies Onetech | Compositions for producing sealing membranes, and associated methods and membranes |
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