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Rut resisting admixutre for high-grade asphalt highway

A kind of asphalt pavement, anti-rutting technology, applied in the field of materials, can solve the problems of high sales price, unreported mature products, and restrictions on popularization and use

Inactive Publication Date: 2007-01-03
西安高远公路养护技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The common characteristics of these anti-rutting products of asphalt mixture in the world are: the improvement of the anti-rutting performance of the mixture is remarkable, and the use is simple and convenient, but the sales price is expensive, which limits the promotion and use of these products
[0006] In recent years, my country's research on anti-rutting agents for asphalt mixtures has also achieved some results, such as the Western Communications Science and Technology Project "Technical Research on the Use of Waste Rubber Powder for Road Construction", the Science and Technology Project of the Sichuan Provincial Department of Communications "External Fiber Asphalt Mixture road performance research", etc., but so far, no mature products have been reported

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Taking the production of product 100kg of the present invention as an example, the raw materials used and their weight proportions are:

[0030] Low-density polyethylene with a molecular weight of 20,000 to 50,000 50kg

[0031] High-density polyethylene with a molecular weight of 100,000 to 300,000 30kg

[0032] Petroleum asphalt with a penetration of 10-50 10kg

[0033] Diatomaceous earth 10kg

[0034] In the proportioning of the present embodiment, the parts by weight of each component of the raw materials used are:

[0035] 50 parts of low-density polyethylene with a molecular weight of 20,000 to 50,000

[0036] 30 parts of high-density polyethylene with a molecular weight of 100,000 to 300,000

[0037] 10 parts of petroleum asphalt with a penetration of 10-50

[0038] Diatomaceous earth 10 parts.

[0039] Its preparation method is as follows:

[0040] Mix low-density polyethylene with a molecular weight of 20,000 to 50,000, high-density polyethylene with a mo...

Embodiment 2

[0042] Taking the production of product 100kg of the present invention as an example, the raw materials used and their weight proportions are:

[0043] Low-density polyethylene with a molecular weight of 20,000 to 50,000 71.43kg

[0044] High-density polyethylene with a molecular weight of 100,000 to 300,000 14.29kg

[0045] Petroleum asphalt with a penetration of 10-50 7.14kg

[0046] Diatomaceous earth 7.14kg

[0047] Its preparation method is identical with embodiment 1.

[0048] In the proportioning of the present embodiment, the parts by weight of each component of the raw materials used are:

[0049]50 parts of low-density polyethylene with a molecular weight of 20,000 to 50,000

[0050] 10 parts of high-density polyethylene with a molecular weight of 100,000 to 300,000

[0051] 5 parts of petroleum asphalt with a penetration of 10-50

[0052] Diatomaceous earth 5 parts.

Embodiment 3

[0054] Taking the production of product 100kg of the present invention as an example, the raw materials used and their weight proportions are:

[0055] Low-density polyethylene with a molecular weight of 20,000 to 50,000 53.12kg

[0056] High-density polyethylene with a molecular weight of 100,000 to 300,000 28.13kg

[0057] Petroleum asphalt with a penetration of 10-50 6.25kg

[0058] Diatomaceous earth 12.50kg

[0059] Its preparation method is identical with embodiment 1.

[0060] In the proportioning of the present embodiment, the parts by weight of each component of the raw materials used are:

[0061] 85 parts of low-density polyethylene with a molecular weight of 20,000 to 50,000

[0062] 45 parts of high-density polyethylene with a molecular weight of 100,000 to 300,000

[0063] 10 parts of petroleum asphalt with a penetration of 10-50

[0064] Diatomaceous earth 20 parts.

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Abstract

The rut resisting admixture for high-grade asphalt highway consists of low density polyethylene of 20-50 kD 50-85 weight portions, high density polyethylene of 10-30 kD 10-45 weight portions, petroleum asphalt in 10-50 needle penetration 5-10 weight portions and diatomite 5-20 weight portions. Experiment shows that the rut resisting admixture of the present invention has low material consumption, low production cost, good waterproof performance, high wear resistance and other advantages, and may be used a the rut resisting material for asphalt road.

Description

technical field [0001] The invention belongs to the technical field of materials, and collectively relates to an anti-rutting admixture for asphalt pavement. Background technique [0002] Rutting is a kind of groove-like pavement damage phenomenon formed on the asphalt pavement along the driving direction of the vehicle due to the frequent and repeated action of the vehicle load, which causes a large permanent deformation of the carriageway at the driving track. The ruts were formed due to overloading of vehicles, excessive traffic volume, and underestimation of the high temperature in summer in the area where the project was located during pavement design. In addition, due to the excessive amount of oil in the design of the asphalt mixture, insufficient compaction of the road surface or base during construction, low compaction of the soil foundation or weak interlayers in the soil foundation, etc. Rutting generally occurs in seasons with high temperature, and the asphalt s...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08L95/00E01C7/18
Inventor 徐培华来小林贾晓放周振支蔡乾东陶家朴商博明王彩艳
Owner 西安高远公路养护技术有限公司
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