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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

Inactive Publication Date: 2011-12-14
JIANGSU SUBOTE MATERIAL +4
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these two kinds of mortars have a strict range of fluidity, and their fluidity is far from the fluidity requirements of semi-flexible pavement pouring materials, and it has been proved that they cannot be poured into semi-flexible pavement materials.

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043]100 parts of cement, 130 parts of mineral admixture, 40 parts of expansion agent, 67 parts of river sand, 15 parts of water reducing agent, 128 parts of water, and 130 parts of emulsified asphalt. Among them, the cement is composed of ordinary 52.5 Portland cement of China Resources Cement Holdings Co., Ltd. and 52.5 sulfoaluminate cement of Nanjing Conch Cement Co., Ltd. in a mass ratio of 100:25; the mineral admixture is composed of kaolin, silica fume and slag. The mass ratio is a mixture of 58:27:15, among which kaolin comes from Jiangsu Runyu Chemical Products Co., Ltd. with a mesh size of 1200 mesh, silica fume comes from Shandong Shanmei Silicon Materials Co., Ltd. with a mesh number of 200 mesh, and slag comes from Wuhan Iron and Steel Group , the mesh number is 200 mesh; the expansion agent is HME-I expansion agent (magnesium oxide expansion agent) of Jiangsu Bote New Material Co., Ltd.; the river sand is ordinary river sand with a fineness modulus of 1.2; the wa...

Embodiment 2

[0047] 100 parts of cement, 120 parts of mineral admixture, 35 parts of expansion agent, 58 parts of river sand, 12 parts of water reducing agent, 124 parts of water, and 110 parts of emulsified asphalt. Among them, the cement is composed of ordinary 52.5 Portland cement of Nanjing Conch Cement Co., Ltd. and 52.5 sulfoaluminate cement of China Resources Cement Holdings Co., Ltd. in a mass ratio of 100:20; the mineral admixture is composed of first-grade kaolin, Silica fume and slag are mixed in a mass ratio of 60:17:23. Among them, the kaolin comes from the No. 4 kaolin mine of Shanxi Yangmei Group with a mesh size of 2500 mesh, the silica fume comes from Beijing Youya / SF85 with a mesh number of 150 mesh, and the slag comes from Baosteel Group, the mesh is 300 mesh; the expansion agent is Jiangsu Bote New Material Co., Ltd. HME-I expansion agent (magnesium oxide expansion agent); the river sand is ordinary river sand with a fineness modulus of 1.1; the water reducing agent is J...

Embodiment 3

[0051] 100 parts of cement, 100 parts of mineral admixture, 30 parts of expansion agent, 40 parts of river sand, 10 parts of water reducing agent, 15 parts of early strength penetrant, 90 parts of water, 125 parts of emulsified asphalt, among which, the cement is controlled by China Resources Cement Co., Ltd.'s ordinary 52.5 Portland cement and 52.5 sulfoaluminate cement are mixed in a mass ratio of 100:5; the mineral admixture is composed of kaolin, silica fume and slag in a mass ratio of 40:30:30, of which kaolin Kaolin No. 4 Mine of Shanxi Yangmei Group, 2500 mesh, silica fume from Beijing Youya / SF85, 150 mesh, slag from Wuhan Iron and Steel Group, 200 mesh; expansion agent Tianjin Baoming UEA expansion agent (calcium sulfoaluminate expansion agent); the river sand is ordinary river sand with a fineness modulus of 0.7; the water reducing agent is PCA-I polycarboxylate water reducing agent of Jiangsu Bote New Material Co., Ltd.; early strength penetrating agent It is compose...

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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.

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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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00C04B28/04C04B28/36C04B111/70
Inventor 刘加平黄冲缪昌文洪锦祥朱晓斌王文峰周伟玲万赟
Owner JIANGSU SUBOTE MATERIAL
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