CN105153715A - Natural latex modified emulsified asphalt and preparation method thereof - Google Patents
Natural latex modified emulsified asphalt and preparation method thereof Download PDFInfo
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- CN105153715A CN105153715A CN201510393765.0A CN201510393765A CN105153715A CN 105153715 A CN105153715 A CN 105153715A CN 201510393765 A CN201510393765 A CN 201510393765A CN 105153715 A CN105153715 A CN 105153715A
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Abstract
The invention discloses a natural latex modified emulsified asphalt, which comprises the following components by weight: 30-80 parts of matrix asphalt, 0.3-8 parts of an emulsifier, 15-40 parts of natural latex, 1.5-4 parts of a stabilizer, 1-3 parts of nano-calcium carbonate, and 1-3 parts of nano-silicon oxide. The invention also discloses a preparation method of the natural latex modified emulsified asphalt. The natural latex modified emulsified asphalt provided by the invention has excellent performance, can meet the use performance of roads, is suitable for slurry seal micro-surfacing treatment, has large viscosity, and is cold-resistant and freezing tolerant. When used for pavement maintenance and curing, the natural latex modified emulsified asphalt can shorten the traffic shut time, improve the construction efficiency and reduce the cost.
Description
Technical field:
The present invention relates to asphalt emulsification and modification field, be specifically related to a kind of natural rubber latex modified emulsifying asphalt.
Background technology:
Take emulsified bitumen as the Construction Technique for Slurry Seal Coat of binding material, have applied range, convenient construction, energy-saving and cost-reducing, decreasing pollution, extends the plurality of advantages such as construction time.But because single matrix pitch is strong to temperature sensitivity, viscosity is low, the shortcomings such as low temperature is easy to crack, snappiness is poor, constrain the widespread use of Slurry Seal Technology.
In view of the advantage that Construction Technique for Slurry Seal Coat is outstanding, applying of it is imperative, but problem how to improve the performance of emulsified bitumen, namely modification is carried out to emulsified bitumen, make it have splendid low-temperature cracking-resistance, high-temperature stability, extremely strong cohesive force and superior elasticity can be managed.
China (CN1439693A) discloses a kind of preparation method of modified emulsifying asphalt, utilize styrene-butadiene latex or polychloroprene latex, B-S-B latex, ethane-acetic acid ethyenyl polymer latex, although the method effectively can improve high temperature and the low-temperature performance of emulsified bitumen, the modified emulsifying asphalt wet-sliding resistant performance obtained is poor, not easily processes, elasticity is low, and low temperature is easy to crack.
Summary of the invention:
The object of this invention is to provide a kind of natural rubber latex modified emulsifying asphalt, its excellent property, can usage capability of road be met, be applicable to slurry seal micro-surfacing treating, viscosity is large, cold-resistantly, resistance to freezes, during for pavement maintenance, maintenance, closedown traffic time can be shortened, improve operating efficiency, reduce costs.
Another object of the present invention is to provide the preparation method of this natural rubber latex modified emulsifying asphalt, and its preparation method is simple, and cost is low.
For achieving the above object, the present invention is by the following technical solutions:
A kind of natural rubber latex modified emulsifying asphalt, with parts by weight, comprises following component:
Matrix pitch 30-80 part, emulsifying agent 0.3-8 part,
Natural rubber latex 15-40 part, stablizer 1.5-4 part,
Nano-calcium carbonate 1-3 part, nano silicon oxide 1-3 part.
Preferred as technique scheme, a kind of natural rubber latex modified emulsifying asphalt, with parts by weight, comprises following component:
Matrix pitch 50 parts, emulsifying agent 5 parts,
Natural rubber latex 25 parts, stablizer 2.5 parts,
Nano-calcium carbonate 2 parts, nano silicon oxide 2 parts.
Preferred as technique scheme, described emulsifying agent is the one two kinds mixing in quaternary ammonium salts, alkyl polyamine class.
Preferred as technique scheme, described quaternary ammonium salts is octadecyl trimethyl ammonium chloride, cetyl trimethylammonium bromide; Described alkyl polyamine class is alkyl propylene diamine, wherein, and the straight chained alkyl of alkyl to be carbonatoms be 15-20.
Preferred as technique scheme, described stablizer is polyvinyl alcohol, Xylo-Mucine, methylcellulose gum, gelatin.
Preferred as technique scheme, also adds water additive in described emulsifying agent.
Preferred as technique scheme, the particle diameter of described nano-calcium carbonate is 50-100nm, and described nano silicon oxide is porous silica, and its size is 20-50nm, and porosity is 80%.
A preparation method for natural rubber latex modified emulsifying asphalt, comprises the following steps:
(1) matrix pitch is heated to 130-170 DEG C, natural rubber latex is added, be uniformly mixed, obtain homogeneous pitch latex;
(2) join in mixing tank by emulsifying agent, stablizer, nano-calcium carbonate, nano silicon oxide, control temperature is 50-95 DEG C, under the state of 5000-10000 rev/min, stirs 2-6h, obtains homogeneous emulsion;
(3) the homogeneous emulsion mixing and stirring that pitch latex step (1) obtained and step (2) obtain, obtains natural rubber latex modified emulsifying asphalt.
Compared with prior art, the present invention has following beneficial effect:
(1) nano-calcium carbonate, nano silicon oxide particle diameter are little, specific surface area is very large, particle surface has a lot of active group, when it mixes with emulsifying agent, stablizer, nano-calcium carbonate, nano oxidized silicon face can adsorb a large amount of polarity macromolecular chain, after adding natural rubber latex, macromolecular chain and the natural rubber latex macromolecular chain of nano grain surface absorption are wound around, the polarity of increasing amount natural rubber latex, thus improve its stickiness, the progressive cohesive force that effectively improve modified emulsifying asphalt;
(2) natural rubber latex there is good elasticity, bonding time film forming properties good, glued membrane be imbued with snappiness, thus make glued membrane have excellent flexible resistance, shock resistance and creep resistance; The present invention adopts poriness silicon oxide can planar water, effectively improves the anti-freezing property of modified emulsifying asphalt.
Embodiment:
For a better understanding of the present invention, below by embodiment, the present invention is further described, and embodiment, only for explaining the present invention, can not form any restriction to the present invention.
Embodiment 1
A kind of natural rubber latex modified emulsifying asphalt, with parts by weight, comprises following component:
Matrix pitch 30 parts, emulsifying agent 0.3 part,
Natural rubber latex 15 parts, stablizer 1.5 parts,
Nano-calcium carbonate 1 part, nano silicon oxide 1 part.
Its preparation method comprises the following steps:
(1) 30 parts of matrix pitches are heated to 130 DEG C, 15 parts of natural rubber latexes are added, is uniformly mixed, obtain homogeneous pitch latex;
(2) join in mixing tank by 0.3 part of emulsifying agent, 1.5 parts of stablizers, 1 part of nano-calcium carbonate, 1 part of nano silicon oxide, control temperature is 50 DEG C, under the state of 5000 revs/min, stirs 2h, obtains homogeneous emulsion;
(3) the homogeneous emulsion mixing and stirring that pitch latex step (1) obtained and step (2) obtain, obtains natural rubber latex modified emulsifying asphalt.
Embodiment 2
A kind of natural rubber latex modified emulsifying asphalt, with parts by weight, comprises following component:
Matrix pitch 80 parts, emulsifying agent 8 parts,
Natural rubber latex 40 parts, stablizer 4 parts,
Nano-calcium carbonate 3 parts, nano silicon oxide 3 parts.
Its preparation method comprises the following steps:
(1) 80 parts of matrix pitches are heated to 170 DEG C, 40 parts of natural rubber latexes are added, is uniformly mixed, obtain homogeneous pitch latex;
(2) join in mixing tank by 8 parts of emulsifying agents, 4 parts of stablizers, 3 parts of nano-calcium carbonates, 3 parts of nano silicon oxides, control temperature is 95 DEG C, under the state of 10000 revs/min, stirs 6h, obtains homogeneous emulsion;
(3) the homogeneous emulsion mixing and stirring that pitch latex step (1) obtained and step (2) obtain, obtains natural rubber latex modified emulsifying asphalt.
Embodiment 3
A kind of natural rubber latex modified emulsifying asphalt, with parts by weight, comprises following component:
Matrix pitch 40 parts, emulsifying agent 1 part,
Natural rubber latex 20 parts, stablizer 2 parts,
Nano-calcium carbonate 1.5 parts, nano silicon oxide 1.5 parts.
Its preparation method comprises the following steps:
(1) 40 parts of matrix pitches are heated to 140 DEG C, 20 parts of natural rubber latexes are added, is uniformly mixed, obtain homogeneous pitch latex;
(2) join in mixing tank by 1 part of emulsifying agent, 2 parts of stablizers, 1.5 parts of nano-calcium carbonates, 1.5 parts of nano silicon oxides, control temperature is 60 DEG C, under the state of 6000 revs/min, stirs 2.5h, obtains homogeneous emulsion;
(3) the homogeneous emulsion mixing and stirring that pitch latex step (1) obtained and step (2) obtain, obtains natural rubber latex modified emulsifying asphalt.
Embodiment 4
A kind of natural rubber latex modified emulsifying asphalt, with parts by weight, comprises following component:
Matrix pitch 50 parts, emulsifying agent 2 parts,
Natural rubber latex 25 parts, stablizer 2.5 parts,
Nano-calcium carbonate 2 parts, nano silicon oxide 2 parts.
Its preparation method comprises the following steps:
(1) 50 parts of matrix pitches are heated to 150 DEG C, 25 parts of natural rubber latexes are added, is uniformly mixed, obtain homogeneous pitch latex;
(2) join in mixing tank by 2 parts of emulsifying agents, 2.5 parts of stablizers, 2 parts of nano-calcium carbonates, 2 parts of nano silicon oxides, control temperature is 70 DEG C, under the state of 7000 revs/min, stirs 3h, obtains homogeneous emulsion;
(3) the homogeneous emulsion mixing and stirring that pitch latex step (1) obtained and step (2) obtain, obtains natural rubber latex modified emulsifying asphalt.
Embodiment 5
A kind of natural rubber latex modified emulsifying asphalt, with parts by weight, comprises following component:
Matrix pitch 60 parts, emulsifying agent 3 parts,
Natural rubber latex 30 parts, stablizer 3 parts,
Nano-calcium carbonate 2.5 parts, nano silicon oxide 2.5 parts.
Its preparation method comprises the following steps:
(1) 60 parts of matrix pitches are heated to 160 DEG C, 30 parts of natural rubber latexes are added, is uniformly mixed, obtain homogeneous pitch latex;
(2) join in mixing tank by 3 parts of emulsifying agents, 3 parts of stablizers, 2.5 parts of nano-calcium carbonates, 2.5 parts of nano silicon oxides, control temperature is 80 DEG C, under the state of 8000 revs/min, stirs 4h, obtains homogeneous emulsion;
(3) the homogeneous emulsion mixing and stirring that pitch latex step (1) obtained and step (2) obtain, obtains natural rubber latex modified emulsifying asphalt.
Embodiment 6
A kind of natural rubber latex modified emulsifying asphalt, with parts by weight, comprises following component:
Matrix pitch 70 parts, emulsifying agent 5 parts,
Natural rubber latex 35 parts, stablizer 3.5 parts,
Nano-calcium carbonate 2.8 parts, nano silicon oxide 2.8 parts.
Its preparation method comprises the following steps:
(1) 70 parts of matrix pitches are heated to 165 DEG C, 35 parts of natural rubber latexes are added, is uniformly mixed, obtain homogeneous pitch latex;
(2) join in mixing tank by 5 parts of emulsifying agents, 3.5 parts of stablizers, 2.8 parts of nano-calcium carbonates, 2.8 parts of nano silicon oxides, control temperature is 90 DEG C, under the state of 9000 revs/min, stirs 5h, obtains homogeneous emulsion;
(3) the homogeneous emulsion mixing and stirring that pitch latex step (1) obtained and step (2) obtain, obtains natural rubber latex modified emulsifying asphalt.
Claims (8)
1. a natural rubber latex modified emulsifying asphalt, is characterized in that, with parts by weight, comprises following component:
Matrix pitch 30-80 part, emulsifying agent 0.3-8 part,
Natural rubber latex 15-40 part, stablizer 1.5-4 part,
Nano-calcium carbonate 1-3 part, nano silicon oxide 1-3 part.
2. a kind of natural rubber latex modified emulsifying asphalt as claimed in claim 1, is characterized in that, with parts by weight, comprises following component:
Matrix pitch 50 parts, emulsifying agent 5 parts,
Natural rubber latex 25 parts, stablizer 2.5 parts,
Nano-calcium carbonate 2 parts, nano silicon oxide 2 parts.
3. a kind of natural rubber latex modified emulsifying asphalt as claimed in claim 1, is characterized in that, described emulsifying agent is the one two kinds mixing in quaternary ammonium salts, alkyl polyamine class.
4. a kind of natural rubber latex modified emulsifying asphalt as claimed in claim 3, is characterized in that, described quaternary ammonium salts is octadecyl trimethyl ammonium chloride, cetyl trimethylammonium bromide; Described alkyl polyamine class is alkyl propylene diamine, wherein, and the straight chained alkyl of alkyl to be carbonatoms be 15-20.
5. a kind of natural rubber latex modified emulsifying asphalt as claimed in claim 1, is characterized in that, described stablizer is polyvinyl alcohol, Xylo-Mucine, methylcellulose gum, gelatin.
6. a kind of natural rubber latex modified emulsifying asphalt as claimed in claim 1, is characterized in that, also add water additive in described emulsifying agent.
7. a kind of natural rubber latex modified emulsifying asphalt as claimed in claim 1, is characterized in that, the particle diameter of described nano-calcium carbonate is 50-100nm, and described nano silicon oxide is porous silica, and its size is 20-50nm, and porosity is 80%.
8. the preparation method of a kind of natural rubber latex modified emulsifying asphalt as described in as arbitrary in claim 1 to 7, is characterized in that, comprise the following steps:
(1) matrix pitch is heated to 130-170 DEG C, natural rubber latex is added, be uniformly mixed, obtain homogeneous pitch latex;
(2) join in mixing tank by emulsifying agent, stablizer, nano-calcium carbonate, nano silicon oxide, control temperature is 50-95 DEG C, under the state of 5000-10000 rev/min, stirs 2-6h, obtains homogeneous emulsion;
(3) the homogeneous emulsion mixing and stirring that pitch latex step (1) obtained and step (2) obtain, obtains natural rubber latex modified emulsifying asphalt.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114479490A (en) * | 2021-11-29 | 2022-05-13 | 江西省高速公路物资有限公司 | Modified emulsified asphalt and preparation method and application thereof |
| CN115558308A (en) * | 2022-08-19 | 2023-01-03 | 中交一公局集团有限公司 | High-permeability emulsified asphalt permeable layer for asphalt pavement |
| CN117106314A (en) * | 2023-10-20 | 2023-11-24 | 广东路面博士交通科技有限公司 | Block copolymer-nano composite modified emulsified asphalt and preparation method thereof |
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| US20060130704A1 (en) * | 2003-07-14 | 2006-06-22 | Partanen John E | Synthetic asphalt recycled tire rubber emulsions and processes for making them |
| CN102827484A (en) * | 2012-08-23 | 2012-12-19 | 长安大学 | Warm mixing additive of asphalt mixture, preparation method and application method thereof |
| CN102965016A (en) * | 2012-11-30 | 2013-03-13 | 山东北方创信防水技术有限公司 | High-temperature resistant spray fast-setting rubber asphalt waterproof coating |
| CN103525106A (en) * | 2013-10-14 | 2014-01-22 | 浙江鲁班建筑防水有限公司 | Water-emulsion type modified asphalt with creep characteristic and preparation method thereof |
| CN104277462A (en) * | 2014-09-04 | 2015-01-14 | 中国铁道科学研究院金属及化学研究所 | Emulsified asphalt for ballastless track cement emulsified asphalt mortar and preparation method of emulsified asphalt |
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- 2015-07-07 CN CN201510393765.0A patent/CN105153715A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060130704A1 (en) * | 2003-07-14 | 2006-06-22 | Partanen John E | Synthetic asphalt recycled tire rubber emulsions and processes for making them |
| CN102827484A (en) * | 2012-08-23 | 2012-12-19 | 长安大学 | Warm mixing additive of asphalt mixture, preparation method and application method thereof |
| CN102965016A (en) * | 2012-11-30 | 2013-03-13 | 山东北方创信防水技术有限公司 | High-temperature resistant spray fast-setting rubber asphalt waterproof coating |
| CN103525106A (en) * | 2013-10-14 | 2014-01-22 | 浙江鲁班建筑防水有限公司 | Water-emulsion type modified asphalt with creep characteristic and preparation method thereof |
| CN104277462A (en) * | 2014-09-04 | 2015-01-14 | 中国铁道科学研究院金属及化学研究所 | Emulsified asphalt for ballastless track cement emulsified asphalt mortar and preparation method of emulsified asphalt |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114479490A (en) * | 2021-11-29 | 2022-05-13 | 江西省高速公路物资有限公司 | Modified emulsified asphalt and preparation method and application thereof |
| CN115558308A (en) * | 2022-08-19 | 2023-01-03 | 中交一公局集团有限公司 | High-permeability emulsified asphalt permeable layer for asphalt pavement |
| CN117106314A (en) * | 2023-10-20 | 2023-11-24 | 广东路面博士交通科技有限公司 | Block copolymer-nano composite modified emulsified asphalt and preparation method thereof |
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Application publication date: 20151216 |