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Self-infiltrating irrigation slurry for semi-flexible pavement and preparation method of self-infiltrating irrigation slurry

A semi-flexible pavement and grouting material technology, applied in the field of building materials, can solve the problems of poor matching between cement grouting material and asphalt mixture, low pouring rate, etc., and achieve the effect of improved matching and high performance

Inactive Publication Date: 2021-01-12
SHANGHAI MUNICIPAL PLANNING & DESIGN INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the defects in the prior art, a self-seeping grout for semi-flexible pavement and its preparation method are provided to solve the problems of poor matching between traditional cement grout and asphalt mixture and low filling rate

Method used

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preparation example Construction

[0041] The present invention provides a kind of preparation method for the self-permeable grouting material of semi-flexible pavement, it is characterized in that, comprises the following steps:

[0042] S1: Mix cement, silica fume, fine aggregate, dispersible latex powder, water reducer, defoamer and self-seepage agent to obtain a mixture evenly.

[0043] Put cement, silica fume, fine aggregate, dispersible latex powder, water reducer, defoamer and self-seepage agent in a mixer according to the proportion by weight, and mix them evenly to obtain a mixture.

[0044] The stirring time of the mixer is 3min, and the linear speed of the mixer is 2.5m / s~5m / s.

[0045] S2: adding water to the mixture for stirring to prepare a self-seepage grouting material for semi-flexible pavement.

[0046] Water is added to the mixture and stirred evenly in a mixer to prepare a self-permeable grout for semi-flexible pavement. Wherein, the stirring by the mixer is 4 minutes, and the linear speed...

Embodiment 1

[0049] Get 100 parts by weight of cement (strength grade is Portland cement of 52.5 grades, C 3 The content of A is 8% by weight, purchased from Anhui Conch Cement Co., Ltd.), 10 parts by weight of silica fume (Sepsen silica fume, the average particle size is 0.1 μm, SiO 2 The content is 98% by weight, the activity index is 115%, purchased from Shandong Boken Silicon Material Co., Ltd.), 35 parts by weight of quartz sand (Shanghai Botong Chemical Co., Ltd.) Parts, 20 parts by weight of the second type of quartz sand of 80mm ~ 120mm), 4 parts by weight of dispersible styrene-butadiene latex powder (American Hexion AXILAT PSB150, non-volatile content ≥ 99%, bulk density 500g / L, purchased from Haichen Kai Chemical Technology Co., Ltd.), 1 part by weight of water reducer (type 8525 water reducer, a polycarboxylate water reducer with a water reduction rate of 40%, purchased from Shanghai Master Construction Engineering High-tech Construction Chemical Co., Ltd. ), 0.08 parts by wei...

Embodiment 2

[0053] Get 100 parts by weight of cement (strength grade is Portland cement of 52.5 grades, C 3 The content of A is 8% by weight, purchased from Anhui Conch Cement Co., Ltd.), 10 parts by weight of silica fume (Sepsen silica fume, the average particle size is 0.1 μm, SiO 2 The content is 98% by weight, the activity index is 115%, purchased from Shandong Boken Silicon Material Co., Ltd.), 40 parts by weight of quartz sand (Shanghai Botong Chemical Co., Ltd.) (20 parts by weight of the first type of quartz sand of 40mm~80mm Parts, 20 parts by weight of the second type of quartz sand of 80mm to 120mm), 3 parts by weight of dispersible styrene-butadiene latex powder (American Hexion AXILAT PSB150, non-volatile content ≥ 99%, bulk density 500g / L, purchased from Haichen Kai Chemical Technology Co., Ltd.), 1 part by weight of water reducer (type 8525 water reducer, a polycarboxylate water reducer with a water reduction rate of 40%, purchased from Shanghai Master Construction Engineer...

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Abstract

The invention provides self-infiltrating irrigation slurry for a semi-flexible pavement and a preparation method of the self-infiltrating irrigation slurry. The slurry comprises cement, silica fume, fine aggregate, dispersible latex powder, a water reducing agent, an antifoaming agent, a self-infiltrating agent and water, wherein the self-infiltrating agent comprises a lubricant, an interface modifier and a stabilizer, the lubricant is polyoxyethylene, the interface modifier is active lamellar silicate, and the stabilizer is polymethyl cellulose ether. The problems that a traditional cement grouting material and an asphalt mixture are poor in matching performance and low in grouting rate are solved.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a self-permeable grouting material for semi-flexible pavement and a preparation method thereof. Background technique [0002] The semi-flexible concrete pavement formed by compounding special cement grouting materials based on open-graded asphalt mixture (porosity 20% to 30%) has both the strain relaxation capacity of asphalt concrete pavement and the stiffness of cement concrete pavement, thus It can effectively reduce the road surface damage caused by the increasing traffic flow and traffic load. [0003] Semi-flexible pavement has many advantages. Its good stress relaxation can reduce the number of temperature joints, and even do not need to set temperature joints. Compared with cement concrete pavement, it will greatly improve driving comfort. Greater rigidity guarantees higher load tolerance without any rutting. The gradation selection of base asphalt makes it h...

Claims

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Application Information

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IPC IPC(8): C04B28/04C04B111/70
CPCC04B28/04C04B2111/70C04B2111/0075C04B18/146C04B14/06C04B24/26C04B2103/302C04B2103/50C04B24/32C04B22/08C04B24/383
Inventor 过震文胡文佩王强黄少文刘小方何昌轩王欢贲虎罗鹏飞
Owner SHANGHAI MUNICIPAL PLANNING & DESIGN INST CO LTD
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