A cement-emulsified asphalt self-permeable grouting material applied to semi-flexible pavement

A technology of semi-flexible pavement and emulsified asphalt, which is used in new road and bridge engineering materials and highway engineering application fields, can solve the problems that semi-flexible pavement materials cannot be poured, and the fluidity requirements are far from each other, so as to achieve extended working time and fatigue. The effect of improved life and shear resistance, moderate elastic modulus
CN102276199AInactive Publication Date: 2011-12-14JIANGSU SUBOTE MATERIAL +4
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
JIANGSU SUBOTE MATERIAL
Publication Date
2011-12-14
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention discloses a cement-emulsified asphalt self-permeable grouting material applied to semi-flexible pavement, which comprises 100 parts of cement, 50-150 parts of mineral admixture, 15-40 parts of expansion agent, 0-80 parts of river sand, 0.5-20 parts of water agent, 60-140 parts of water, and 50-150 parts of emulsified asphalt, all of which are parts by weight. The grouting material of the present invention is low in cost, good in fluidity, long in working time, and satisfies the grouting characteristics of self-permeation of slurry; has good interfacial bonding performance with asphalt, and has a certain early strength function; the volume change rate is small, and the degree of delamination is less than 0.3%, with good volume stability; both cationic emulsified asphalt and anionic emulsified asphalt can be used, with a wide range of applications; applying this grouting material to semi-flexible pavement can greatly improve the fatigue life of flexible pavement The shear performance is effectively improved.
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Description

technical field

[0001] The invention relates to a cement-emulsified asphalt self-permeable grouting material applied to semi-flexible road surfaces, belonging to the field of new road and bridge engineering materials and the field of highway engineering applications. Background technique

[0002] Semi-flexible pavement is a new type of pavement material composed of large-pore asphalt mixture and cement-based materials with special properties. Semi-flexible pavement has been proven to be able to solve problems such as rutting and water damage on asphalt pavement, and can be used in gas stations, parking lots, bus stations, port terminals, military bases, airstrips, turning at intersections, climbing sections, etc.

[0003] At present, the application of semi-flexible pavement in foreign countries is very active, and some domestic research institutes have also achieved certain results and laid some test road sections. However, judging from the test section of the current semi...

Claims

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