Grooving grouting pavement construction method with slippage resistance and ice breakage effects

A construction method and function technology, applied in the field of grooved grouting pavement construction, can solve the problems of pavement skid resistance attenuation, pavement skid resistance decline, difficult to eliminate, etc., to improve friction coefficient, improve service life, restore anti-skid sexual effect

Inactive Publication Date: 2019-12-13
CHANGAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, in order to improve the skid resistance of the pavement, most of the cement concrete pavement in China adopts grooves to improve the skid resistance of the pavement; while the conventional small-sized rectangular grooves have a small increase in the skid resistance of the cement pavement, and in cold and rainy areas , when the ice and snow accumulation on the road surface and grooves are serious, it is difficult to eliminate, which further reduces the anti-skid performance of the road surface; the new asphalt pavement is generally designed through the mix ratio to increase the surface texture of the road surface, so as to improve the anti-skid performance of the road surface, while In cold areas, if the road surface is icy, it is difficult to remove; in addition, on steep road sections or tunnel entrance and exit sections, whether it is cement road or asphalt road, it is easy to be polished by tires, which makes the road surface skid resistance rapidly decay; therefore, there are these When the phenomenon occurs, it will seriously affect the driving safety

Method used

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  • Grooving grouting pavement construction method with slippage resistance and ice breakage effects
  • Grooving grouting pavement construction method with slippage resistance and ice breakage effects

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Take 60% polyurethane and 40% 60 mesh rubber powder according to mass percentage and mix uniformly to obtain grouting material for use. Carve grooves on the formed road surface. The grooves are trapezoidal grooves. The groove bottom width is 6mm and the groove depth is 6mm. , The groove opening width is 12mm, and the gap between the grooves is 42mm; then the above-mentioned grouting material is injected into the groove, and the anti-skid pavement construction can be completed after the grouting material is cured. The pavement before construction was tested for its anti-skid performance. The anti-skid performance of the pavement after the anti-skid pavement construction was 22% higher than that of the pavement before the anti-skid construction.

Embodiment 2

[0046] Take 62% polyurethane and 38% 50 mesh rubber powder according to mass percentage and mix uniformly to obtain grouting material for spare use. Carve grooves on the formed road surface. The grooves are trapezoidal grooves. The groove bottom width is 8mm and the groove depth is 8mm. , The opening width of the groove is 16mm, and the gap between the grooves is 60mm; then the above grouting material is injected into the groove, and the anti-skid pavement construction can be completed after the grouting material is solidified. The pavement before construction was tested for its anti-skid performance, and the anti-skid performance of the pavement after the anti-skid pavement construction was increased by 21% compared with the pavement before the anti-skid construction.

Embodiment 3

[0048] Take 65% polyurethane and 35% 30 mesh rubber powder according to mass percentage and mix evenly to obtain grouting material for use. Carve grooves on the formed road surface. The grooves are trapezoidal grooves. The groove bottom width is 4mm and the groove depth is 4mm. , The opening width of the groove is 8mm, and the gap between the grooves is 30mm; then the above grouting material is injected into the groove, and the anti-skid pavement construction can be completed after the grouting material is cured. The pavement before construction was tested for its anti-skid performance, and the anti-skid performance of the pavement after the anti-skid pavement construction was increased by 18% compared with the pavement before the anti-skid construction.

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Abstract

The invention discloses a grooving grouting pavement construction method with slippage resistance and ice breakage effects. Cementing agents and rubber powder are uniformly mixed to form flexible grouting materials according to a mass ratio; molded pavements are grooved, or grooves are reserved on the surfaces of pavements in the construction process of newly built pavements; grooving structures arranged at intervals are adopted, and the grouting materials are used for reinforcing the grooves to form intermittent anti-slippage layers on the pavements; the cementing agents are used as bonding agents of the rubber powder and groove walls; and the rubber powder can be stably maintained in the grooves, so that flexible filling structures with the rubber powder as main components are formed inthe grooves, the edge damage of the grooves of the pavements is prevented, the service life of the grooved pavements is prolonged, and the pavements can maintain long-time slippage resistance. At lowtemperature, the hardened grouting materials and pavement main body materials are larger in modulus difference, so that ice formed on the surfaces of the pavements and hidden ice are easily broken under the effect of tires, the contact between the tires and the pavements is recovered, and the slippage resistance of the pavements are recovered.

Description

Technical field [0001] The invention belongs to the technical field of road engineering, and relates to a method for constructing a grooved grouting pavement with anti-sliding and ice-breaking effects. Background technique [0002] At present, in order to improve the sliding resistance of the pavement, most of the domestic cement concrete pavements adopt the form of grooves to improve the sliding resistance of the pavement; while the conventional small-sized rectangular grooves have a small increase in the sliding resistance of the cement pavement, and in cold and rainy areas It is difficult to eliminate the ice and snow accumulation on the road surface and in the groove, which will further reduce the anti-skid performance of the pavement; the newly-built asphalt pavement is generally designed by mixing ratio to increase the surface texture of the pavement to improve the anti-skid performance of the pavement. In cold areas, if the road surface is frozen, it is also difficult to r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C23/09E01C11/24
CPCE01C11/24E01C11/245E01C23/096E01C23/098
Inventor 韩森韩霄李杨杨振高巍李建军刘亚敏
Owner CHANGAN UNIV
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