Modified asphalt for road and preparation method

A modified asphalt and road technology, which is applied in the field of modified asphalt for roads and its preparation, can solve problems such as the decline in the performance of asphalt pavement, endangering the safety of people's lives and property, and loose asphalt pavement surface, so as to achieve good application value and save emulsification Production process, good cold resistance effect

Inactive Publication Date: 2017-06-23
合肥天沃能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, asphalt mixture is a complex of viscosity, elasticity and plasticity. At the same time, due to the limitation of pavement design methods in our country, there are some problems in asphalt pavement under the combined action of road load and natural environment. The main manifestations are: first, asphalt is A non-Newtonian fluid with both viscosity and fluidity, so the asphalt pavement is prone to rutting when it is hot in summer and cracks when it is cold in winter
Second, under long-term loads, the surface layer of asphalt pavement will appear loose, potholes, aging, water seepage and other diseases, and the performance of asphalt pavement will decline, which may endanger the safety of people's lives and property
Third, the road surface is icy in winter rainy and snowy weather, which is not easy to remove, causing great trouble to pedestrian safety

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A kind of modified asphalt for road and preparation method of preferred embodiment of the present invention;

[0025] The modified asphalt for road is prepared from the following raw materials in parts by weight:

[0026] 78 parts of asphalt, 22 parts of SBS, 15 parts of polybutylene terephthalate, 12 parts of carbon powder, 18 parts of attapulgite clay, 10 parts of epoxy resin, 15 parts of waste rubber, 12 parts of polypropylene fiber, fiber 8 parts of plain ether, 8 parts of nano-titanium dioxide, 12 parts of sodium chloride, 10 parts of sodium silicate, 20 parts of filler, 5 parts of compatibilizer, and 5 parts of softener.

[0027] The attapulgite clay is a mixture obtained by mixing natural attapulgite clay with water after purification and modification. It has good viscosity and plasticity, high emulsification rate, saves emulsification production process, reduces production cost, and has It is beneficial to the emulsification and bonding between raw materials, s...

Embodiment 2

[0033] A kind of modified asphalt for road and preparation method of preferred embodiment of the present invention;

[0034] The modified asphalt for road is prepared from the following raw materials in parts by weight:

[0035] 70 parts of asphalt, 20 parts of SBS, 10 parts of polybutylene terephthalate, 8 parts of carbon powder, 15 parts of attapulgite clay, 5 parts of epoxy resin, 5 parts of waste rubber, 10 parts of polypropylene fiber, fiber 5 parts of plain ether, 5 parts of nano-titanium dioxide, 5 parts of sodium chloride, 8 parts of sodium silicate, 10 parts of filler, 3 parts of compatibilizer, and 2 parts of softener.

[0036] The attapulgite clay is a mixture obtained by mixing natural attapulgite clay with water after purification and modification.

[0037] The filler is a mixture of microporous calcium carbonate and diatomaceous earth.

[0038] The present invention also relates to a method for preparing modified asphalt for road, comprising the steps of:

[0...

Embodiment 3

[0042] A kind of modified asphalt for road and preparation method of preferred embodiment of the present invention;

[0043] The modified asphalt for road is prepared from the following raw materials in parts by weight:

[0044] 90 parts of asphalt, 30 parts of SBS, 20 parts of polybutylene terephthalate, 16 parts of carbon powder, 30 parts of attapulgite clay, 15 parts of epoxy resin, 18 parts of waste rubber, 16 parts of polypropylene fiber, fiber 12 parts of plain ether, 10 parts of nano-titanium dioxide, 15 parts of sodium chloride, 12 parts of sodium silicate, 30 parts of filler, 8 parts of compatibilizer, and 6 parts of softener.

[0045] The attapulgite clay is a mixture obtained by mixing natural attapulgite clay with water after purification and modification.

[0046] The filler is a mixture of microporous calcium carbonate, kaolin and diatomaceous earth.

[0047] The present invention also relates to a method for preparing modified asphalt for road, comprising the ...

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Abstract

The invention discloses modified asphalt for a road and a preparation method. The modified asphalt contains the following components: asphalt, SBS, polybutylene terephthalate, carbon powder, attapulgite clay, epoxy resin, waste rubber, polypropylene fibers, cellulose ether, nano titanium dioxide, sodium chloride, sodium silicate, filler, a compatilizer and a softener. The preparation method comprises the following steps: firstly, preparing pasty attapulgite clay; weighing asphalt and adding the same into a reaction tank; raising the temperature till the asphalt is in a dissolved flowable state; adding a polymer component, the cellulose ether, the compatilizer and the softener into the reaction tank to stir and mix to react for 2-4h; then adding the residual components into the mixture; then placing the mixture into a mixer to be mixed for 2-4h; and cooling the mixture to obtain the modified asphalt. The modified asphalt not only has the characteristics of better cold resistance, crack resistance, aging resistance and high strength, but also has a certain snow-melting and anti-freezing property, and greatly improves the using safety of an asphalt pavement.

Description

technical field [0001] The invention relates to the technical field of modified asphalt, in particular to a modified asphalt for roads and a preparation method thereof. Background technique [0002] Asphalt is a dark brown complex mixture composed of hydrocarbons of different molecular weights and their non-metallic derivatives. It is a kind of high-viscosity organic liquid. It is liquid with a black surface and is soluble in carbon disulfide. Asphalt is a waterproof, moisture-proof and anti-corrosion organic gelling material. Pitch can be mainly divided into three types: coal tar pitch, petroleum pitch and natural pitch. Among them, coal tar pitch is a by-product of coking. Petroleum asphalt is the residue after distillation of crude oil. Natural bitumen is stored underground, and some form ore layers or accumulate on the surface of the earth's crust. Asphalt is mainly used in coatings, plastics, rubber and other industries as well as paving roads. [0003] Asphalt pave...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L53/02C08L67/02C08L63/00C08L21/00C08L23/12C08L1/28C08K13/06C08K3/22C08K3/34C08K3/16C08K7/24C08K9/00C08K3/04C08K3/26E01C19/02E01C19/10
CPCC08L95/00C08K2201/001C08K2201/003C08L2201/08C08L2205/035C08L2205/16E01C19/02E01C19/10C08L53/02C08L67/02C08L63/00C08L21/00C08L23/12C08L1/28C08K13/06C08K2003/2241C08K3/34C08K3/346C08K3/16C08K7/24C08K9/00C08K3/04C08K2003/265
Inventor 魏芳芳
Owner 合肥天沃能源科技有限公司
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