Pavement concrete for municipal construction engineering

A technology of construction engineering and concrete, which is applied in the field of pavement concrete for municipal construction engineering, can solve the problems of low bending and tensile strength and deformation capacity, high brittleness of cement concrete pavement, weak impact resistance and fatigue resistance, etc., and achieve improved crack resistance ability, reducing efflorescence, and improving density uniformity

Active Publication Date: 2020-05-22
安徽虹达道路桥梁工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, ordinary concrete is a typical brittle material with low bending and tensile strength and deformation capacity. Therefore, the cement concrete pavem

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A pavement concrete for municipal construction engineering, comprising the following raw materials in parts by weight: 40 parts of cement, 10 parts of diatomite, 5 parts of glyceryl monostearate, 3 parts of sodium monofluorophosphate, 3 parts of sodium alginate, water reducing 6 parts of agent, 10 parts of swelling fiber anti-cracking and waterproofing agent, 3 parts of amorphous heptaaluminate calcium dodecaaluminate, 4 parts of silane coupling agent, 1 part of vaseline, 4 parts of acrylic emulsion, 1 part of fatty alcohol polyoxyethylene ether, 1 part of defoamer and 30 parts of water.

[0017] Among them, the cement is made of Portland cement and Portland cement, and the weight ratio of Portland cement to phosphate cement is 1:1;

[0018] Among them, the average particle size of diatomite is 5 μm;

[0019] Wherein, what the water reducer adopts is the mixture of polycarboxylate retarding high-efficiency superplasticizer and Nai series water reducing agent, and the w...

Embodiment 2

[0023] A pavement concrete for municipal construction engineering, comprising the following raw materials in parts by weight: 42 parts of cement, 12 parts of diatomaceous earth, 7 parts of glyceryl monostearate, 4 parts of sodium monofluorophosphate, 5 parts of sodium alginate, water reducing 7 parts of agent, 12 parts of anti-cracking and waterproofing agent for expanding fibers, 5 parts of amorphous calcium heptaaluminate, 5 parts of silane coupling agent, 1.5 parts of vaseline, 6 parts of acrylic emulsion, 2 parts of fatty alcohol polyoxyethylene ether, 1 part of defoamer and 32 parts of water.

[0024] Among them, the cement is made of Portland cement and Portland cement, and the weight ratio of Portland cement to phosphate cement is 1:1;

[0025] Among them, the average particle size of diatomite is 6 μm;

[0026] Wherein, what the water reducer adopts is the mixture of polycarboxylate retarding high-efficiency superplasticizer and Nai series water reducing agent, and th...

Embodiment 3

[0030] A kind of pavement concrete for municipal construction engineering, comprising the following raw materials in parts by weight: 45 parts of cement, 13 parts of diatomite, 8 parts of glyceryl monostearate, 4 parts of sodium monofluorophosphate, 4 parts of sodium alginate, water reducing 7 parts of agent, 13 parts of anti-cracking and waterproofing agent for expanding fibers, 4 parts of amorphous calcium heptaaluminate, 5 parts of silane coupling agent, 1.5 parts of vaseline, 5 parts of acrylic emulsion, 1.5 parts of fatty alcohol polyoxyethylene ether, 1.5 parts of defoamer and 35 parts of water.

[0031] Among them, the cement is made of Portland cement and Portland cement, and the weight ratio of Portland cement to phosphate cement is 1:1;

[0032] Among them, the average particle size of diatomite is 8 μm;

[0033] Wherein, what the water reducer adopts is the mixture of polycarboxylate retarding high-efficiency superplasticizer and Nai series water reducing agent, an...

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Abstract

The invention discloses pavement concrete for municipal construction engineering. The pavement concrete comprises the following raw materials in parts by weight: 40-50 parts of cement, 10-15 parts ofdiatomite, 5-10 parts of glycerol monostearate, 3-5 parts of sodium monofluorophosphate, 3-5 parts of sodium alginate, 6-8 parts of a water reducing agent, 10-15 parts of an expansion fiber anti-cracking waterproof agent, 3-5 parts of amorphous dodecacalcium heptaaluminate, 4-6 parts of a silane coupling agent, 1-2 parts of vaseline, 4-6 parts of an acrylic emulsion, 1-2 parts of fatty alcohol-polyoxyethylene ether, 1-2 parts of an antifoaming agent and 30-40 parts of water. Compared with the prior art, the pavement concrete has advantages that: by adding the diatomite and the diatomite withinthe particle size range of 3-12 microns, the phenomenon that cracks are found in concrete can be well avoided, and the strength of the concrete is improved; the glycerol monostearate can improve strength of the concrete. In conclusion, the pavement concrete for municipal construction engineering prepared by the scheme has the performance advantages of high toughness, impact resistance, crack resistance, wear resistance, skid resistance and the like.

Description

technical field [0001] The invention relates to the technical field of municipal construction roads, in particular to road concrete for municipal construction projects. Background technique [0002] At present, the highway pavement materials in my country's municipal construction projects mainly include asphalt concrete and cement concrete. Seasonal anti-deformation ability is poor, it is easy to be brittle and cracked at low temperature in winter, and poor durability. Cement concrete pavement has the advantages of long service life, small maintenance workload, low resource consumption, simple construction, and strong adaptability to traffic levels and environments. However, ordinary concrete is a typical brittle material with low bending and tensile strength and deformation ability. Therefore, the cement concrete pavement has high brittleness, poor driving comfort, weak impact resistance and fatigue resistance, easy brittle fracture, and premature surface structure damage. ...

Claims

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Application Information

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IPC IPC(8): C04B28/34C04B111/27C04B111/34
CPCC04B28/344C04B2201/50C04B2111/343C04B2111/27C04B2111/00293C04B7/02C04B14/08C04B24/045C04B22/16C04B24/38C04B22/14C04B16/0633C04B22/08C04B24/42C04B24/02C04B24/26C04B24/32C04B2103/302C04B2103/65C04B2103/0068
Inventor 席绪荣王军章铭童玉贵刘刚
Owner 安徽虹达道路桥梁工程有限公司
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