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Cement mortar and its method for preparing rapid open traffic semi-flexible pavement

A technology of semi-flexible pavement and cement mortar, which is applied to cohesive pavement paved on site, roads, roads, etc., and can solve the problems of long closed traffic time, slow development of cement mortar strength, and long open traffic time

Active Publication Date: 2015-09-09
JIANGSU SOBUTE NEW MATERIALS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The Chinese patent application publication number 101857401A (the application publication date is October 13, 2010) describes a self-flowing semi-flexible composite pavement and its construction method. After the grouting construction is completed, roadblocks need to be closed for health maintenance24 It can be seen that the closed traffic time is long and the open traffic time is long, which is not conducive to urban road construction. The reason is that the strength of cement mortar develops slowly
[0005] At present, there are few studies on ultra-fast open traffic of semi-flexible pavement materials, and there are few relevant research reports

Method used

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  • Cement mortar and its method for preparing rapid open traffic semi-flexible pavement
  • Cement mortar and its method for preparing rapid open traffic semi-flexible pavement

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Effect test

Embodiment 1

[0059] A method for preparing an ultrafast semi-flexible pavement material for open traffic, the process comprising:

[0060] 1) Preparation of super early strength and temperature resistant cement mortar:

[0061] First, weigh and place each component material according to the following parts by weight: 95 parts of cement, 20 parts of inorganic filler, 0 part of sand, 0.5 part of water reducing agent, 0.02 part of coagulant accelerator, 0.05 part of high temperature thixotropic agent, 60 parts of water . Then put the solid components into the mixing pot and stir evenly, then add the liquid components and stir quickly to obtain super early strength and temperature resistant cement mortar.

[0062] The coagulant is Lithium Carbonate from Shanghai Zhongli Industry Co., Ltd.

[0063] The preparation method of the high-temperature thixotropic agent is as follows: add 2g of sodium bentonite to 50ml of deionized water, stir for 0.5h, heat up to 60°C, add 0.1g of cetyltrimethylammo...

Embodiment 2

[0077] A method for preparing an ultrafast semi-flexible pavement material for open traffic, the process comprising:

[0078] 1) Preparation of super early strength and temperature resistant cement mortar:

[0079] First, weigh and place each component material according to the following parts by weight: 100 parts of cement, 100 parts of inorganic filler, 100 parts of sand, 10 parts of water reducing agent, 10 parts of coagulant accelerator, 10 parts of high temperature thixotropic agent, 140 parts of water . Then put the solid components into the mixing pot and stir evenly, then add the liquid components and stir quickly to obtain super early strength and temperature resistant cement mortar.

[0080] The coagulant is Lithium Carbonate from Shanghai Zhongli Industry Co., Ltd.

[0081] The preparation method of the high-temperature thixotropic agent is as follows: add 2g of sodium bentonite to 50ml of deionized water, stir for 1 hour, heat up to 80°C, add 0.5g of cetyltrimeth...

Embodiment 3

[0090] A method for preparing an ultrafast semi-flexible pavement material for open traffic, the process comprising:

[0091] 1) Preparation of super early strength and temperature resistant cement mortar:

[0092] First, weigh and place each component material according to the following parts by weight: 100 parts of cement, 20 parts of inorganic filler, 10 parts of sand, 10 parts of superplasticizer, 10 parts of coagulant, 10 parts of high-temperature thixotropic agent, and 60 parts of water. Then put the solid components into the mixing pot and stir evenly, then add the liquid components and stir quickly to obtain super early strength and temperature resistant cement mortar.

[0093] The coagulant is Lithium Carbonate from Shanghai Zhongli Industry Co., Ltd.

[0094] The preparation method of the high-temperature thixotropic agent is as follows: add 2g of sodium bentonite to 50ml of deionized water, stir for 1.5h, heat up to 70°C, add 0.1g of cetyltrimethylammonium bromide ...

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Abstract

The invention belongs to the field of road and bridge engineering materials and road engineering application, and in particular relates to the field of grouting materials applied to semi-flexible pavements of rapid open traffic. The cement gel mortar comprises the following raw materials in parts by weight: 95-105 parts of cement, 20-100 parts of inorganic filler, 0-100 parts of sand, 0.5-10 parts of water reducing agent, 0.02-10 parts of coagulant, 0.05-10 parts of high-temperature thixotropic agent and 60-140 parts of water, wherein the high-temperature thixotropic agent consists of sodium bentonite, hexadecyl trimethyl ammonium bromide and octadecylamine; the coagulant is a lithium compound; the cement is sulfate aluminium cement. The cement gel mortar provided by the invention has the characteristic of high early strength high temperature resistance, and is particularly applicable to manufacture of semi-flexible pavements.

Description

technical field [0001] The invention belongs to the field of new road and bridge engineering materials and the application field of road engineering, and in particular relates to the field of grouting materials applied to semi-flexible pavement for rapid and open traffic. 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 the rutting and water damage problems of 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. The rut phenomenon at the intersection of municipal roads...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/06C04B22/10C04B22/06C04B24/12C04B22/08E01C7/26
Inventor 洪锦祥黄冲朱晓斌邓成林俊涛张德育
Owner JIANGSU SOBUTE NEW MATERIALS
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