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Concrete formula and concrete road paving method

A laying method and concrete technology, applied in the direction of roads, roads, road repair, etc., can solve the problems of low cohesion, large acting force, and reduced structural strength of concrete roads, and achieve the effect of avoiding cracks.

Inactive Publication Date: 2018-02-02
无锡交通建设工程集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Due to the strong polarity of water, most of the aggregates and adhesives are physically bonded, and the bonding force between them is low. Therefore, when the water on the surface penetrates downward, a part of the concrete road is more bonded. Weak substances are washed away by the water; in addition, when the water seeps downwards and the vehicle passes the concrete road, due to the large mass of the vehicle, when the vehicle rolls forward, the moisture in front of the tire will be Pressed into the concrete road, the moment after the tire is rolled, it will generate suction to the moisture in the concrete. The force of this suction is relatively large, so that some of the aggregates in the concrete that are not firmly bonded are separated from each other, resulting in a concrete road structure. Reduced strength

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] Take a clean container and add 350 parts of stones to it. The stones are divided into two types, rice stones and crushed stones. The ratio of rice stones to crushed stones is 2:5. 4-8mm; 60 parts of water-based acrylic acid and 20 parts of water-absorbent resin balls are added thereto, and the water-absorbent resin balls are made of superabsorbent resin, and the particle diameter of the water-absorbent resin balls is 0.1-0.3cm. 0.1cm, 30 parts of elastic rubber particles, the particle diameter of elastic rubber particles is 0.3-0.8cm, is 0.3cm in the present embodiment; Add 120 parts of cement, 20 parts of fly ash, 50 parts of water-based polyurethane, and then add 10 parts Sand, use coarse sand for sand; add 150 parts of diluent, the diluent is water; add 30 parts of water reducer, 30 parts of retarder, 30 parts of montmorillonite, 10 parts of foaming agent, and the foaming agent is sodium bicarbonate Mix with calcium carbonate, the mixing ratio is 1:2.

Embodiment 2

[0052] Take a clean container and add 400 parts of stones to it. The stones are divided into two types, rice stones and crushed stones. The ratio of rice stones to crushed stones is 2:5. 4-8mm; Add 120 parts of water-based acrylic acid and 30 parts of water-absorbing resin balls to it, the water-absorbing resin balls are made of super-absorbent resin, and the particle diameter of the water-absorbing resin balls is 0.1-0.3cm. 0.1cm, 80 parts of elastic rubber particles, the particle diameter of elastic rubber particles is 0.3-0.8cm, is 0.3cm in the present embodiment; Add 200 parts of cement, 30 parts of fly ash, 80 parts of water-based polyurethane, and then add 30 parts Sand, use coarse sand for sand; add 80 parts of diluent, the diluent is water; add 50 parts of water reducer, 50 parts of retarder, 50 parts of montmorillonite, 20 parts of foaming agent, and the foaming agent is sodium bicarbonate Mix with calcium carbonate, the mixing ratio is 1:2.

Embodiment 3

[0054] Take a clean container and add 375 parts of stones to it. The stones are divided into two types, rice stone and crushed stone. 4-8mm; 90 parts of water-based acrylic acid and 25 parts of water-absorbent resin balls are added thereto, and the water-absorbent resin balls are made of superabsorbent resin, and the particle diameter of the water-absorbent resin balls is 0.1-0.3cm. 0.1cm, 50 parts of elastic rubber granules, the particle diameter of elastic rubber granules is 0.3-0.8cm, is 0.3cm in the present embodiment; Add 160 parts of cement, 25 parts of fly ash, 65 parts of water-based polyurethane again, add 25 parts Sand, use coarse sand for sand; add 180 parts of diluent, the diluent is water; add 40 parts of water reducer, 40 parts of retarder, 40 parts of montmorillonite, 15 parts of foaming agent, and the foaming agent is sodium bicarbonate Mix with calcium carbonate, the mixing ratio is 1:2.

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Abstract

The invention relates to a concrete formula and a concrete road paving method. The concrete formula is prepared from, by weight, 350-450 parts of stone, 20-30 parts of water-absorbing resin ball, 60-120 parts of water-borne acrylic acid, 30-80 parts of elastic rubber grain, 120-200 parts of cement, 150-200 parts of sand, 20-30 parts of fly ash, 80-120 parts of diluent, 50-80 parts of waterborne polyurethane. The grain diameter of the elastic rubber grain is 0.3-0.85 cm; the diluent adopts water. The resilience of the elastic rubber grain is less than that of the water-absorbing resin; when a tire leaves a point of force application, the water-absorbing resin can recover the original shape in advance, and then the elastic rubber grain can slowly recover the original shape, thus the strong absorption of moisture penetrated in the road can be reduced, thereby avoiding moisture in the road taking away from the road surface under the effect of strong absorbing force.

Description

technical field [0001] The invention relates to concrete construction, in particular to a concrete formula and a concrete road laying method. Background technique [0002] Concrete refers to the collective name of engineering composite materials in which aggregates are cemented into a whole by cementitious materials; concrete can be divided into ordinary concrete and permeable concrete, and ordinary concrete is always vibrated as much as possible during construction. , in order to reduce the porosity and increase its strength, the second permeable concrete adopts aggregates of different particle sizes to meet its strength requirements and at the same time realize the structural characteristics of porous and continuous pores in the inner structure of the concrete, so that it has good water permeability It can absorb and eliminate sound through the pores, and can also discharge rainwater into the ground through the pores, so as to supplement groundwater resources and promote u...

Claims

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Application Information

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IPC IPC(8): C04B28/00E01C21/00
Inventor 蒋豪李勇杨晓
Owner 无锡交通建设工程集团有限公司
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