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Track-resistant and crack-resistant additive for pavement

An anti-crack and additive technology, which is applied in the field of road surface anti-rutting and anti-crack additives, can solve the problems of rutting damage, long time load acting on the road surface, and slow driving speed of heavy vehicles, so as to increase the wear resistance of the road surface and improve the anti-cracking performance. Rutting ability, effect of increasing high temperature stability properties and mix strength

Inactive Publication Date: 2011-06-08
XIAN WANDA ENG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the development of the national economy, the road traffic volume is increasing, especially the increase of heavy-duty vehicles and the use of high-pressure tires. Rutting has become one of the main forms of early damage to asphalt pavement, especially on long steep slopes and sharp bends. On expressways in mountainous and hilly areas, heavy vehicles travel slowly, and the load of the vehicle acts on the road surface for a longer time, which is prone to serious rutting damage

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] The composition of raw materials in this embodiment is calculated by mass percentage: 50% of PP powder, 47.5% of rubber particles, and 2.5% of diatomaceous earth.

[0012] The preparation method is as follows: put the PP powder, rubber particles and diatomite in the above mass percentage into the mixing equipment according to the proportion, and stir evenly for 30-60 seconds to form the finished product.

Embodiment 2

[0014] The composition of raw materials in this embodiment is calculated by mass percentage: 10% of PP powder, and 90% of rubber particles.

[0015] The preparation method is as follows: put the PP powder, rubber particles and diatomite in the above mass percentage into the mixing equipment according to the proportion, and stir evenly for 30-60 seconds to form the finished product.

Embodiment 3

[0017] The composition of raw materials in this embodiment is calculated by mass percentage: 90% of PP powder, 5% of rubber particles, and 5% of diatomaceous earth.

[0018] The preparation method is as follows: put the PP powder, rubber particles and diatomite in the above mass percentage into the mixing equipment according to the proportion, and stir evenly for 30-60 seconds to form the finished product.

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PUM

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Abstract

The invention discloses a track-resistant and crack-resistant additive for a pavement. The additive is prepared by compounding the following raw materials in percentage by weight: 10%-90% of propene polymer (PP) powder, 5%-90% of rubber particles and 0-5% of infusorial earth. In the invention, the PP powder, rubber particles and infusorial earth are compounded to prepare the mixed fiber material; in the compound material, the PP powder plays a role of an enhanced rib and has the function of restricting relative sliding among mineral aggregate particles, and the wear resistance of the pavement is increased by the infusorial earth, thereby increasing the high temperature stability and strength of the asphalt mixture, improving the track resistance of the asphalt pavement and lowering the production cost.

Description

technical field [0001] The invention relates to an additive, in particular to a road surface anti-rutting and anti-crack additive. Background technique [0002] With the development of the national economy, the road traffic volume is increasing, especially the increase of heavy-duty vehicles and the use of high-pressure tires. Rutting has become one of the main forms of early damage to asphalt pavement, especially on long steep slopes and sharp bends. On expressways in mountainous and hilly areas, heavy vehicles travel slowly, and the load of the vehicle takes longer to act on the road surface, which is prone to serious rutting damage. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a pavement anti-rutting and anti-cracking additive, which is easy to use, low in production cost, good in wear resistance, fast in forming speed, and can improve asphalt mixture at the same time. High temperature resistance to deform...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/26
Inventor 班进
Owner XIAN WANDA ENG TECH
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