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Water-permeable compression-resistant concrete and preparation method thereof

A concrete and cement technology, which is applied in the direction of sustainable waste treatment, solid waste management, climate sustainability, etc., can solve problems affecting the compressive performance of concrete, achieve the effects of maintaining water permeability, facilitating processing, and improving compressive strength

Active Publication Date: 2020-12-15
武汉鑫云海混凝土有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, increasing the water permeability by making sand-free concrete will easily affect the compressive performance of concrete

Method used

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  • Water-permeable compression-resistant concrete and preparation method thereof
  • Water-permeable compression-resistant concrete and preparation method thereof
  • Water-permeable compression-resistant concrete and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] A permeable compression-resistant concrete disclosed in the application comprises coarse aggregate, fine sand, cement, water, fine powder additives and a water reducer.

[0041] Coarse aggregates include gravel and ceramic particles.

[0042] Fine powder additives include fly ash, silica gel powder and talcum powder.

[0043] The cement is Portland cement.

[0044] The water reducing agent is lignosulfonate water reducing agent with a solid content of 20%, and its water reducing rate is greater than 30%.

[0045] The specific weight fraction of each component is detailed in Table 1.

[0046] Wherein the weight ratio of fly ash, silica gel powder and talcum powder in the fine powder additive is 40:20:18.

[0047] The weight ratio of crushed stone particles and ceramic particles in the coarse aggregate is 600:450.

[0048] The preparation method of the permeable compression concrete comprises the following steps:

[0049] S1: Mix and stir fly ash, silica gel powder a...

Embodiment 2

[0056] A kind of permeable and compressive concrete, which contains different components by weight, and the detailed values ​​are shown in Table 1.

[0057] in:

[0058] The weight ratio of fly ash, silica gel powder and talcum powder in the fine powder additive is 43:22:20.

[0059] The weight ratio of crushed stone particles and ceramic particles in the coarse aggregate is 660:500.

Embodiment 3

[0061] A kind of permeable and compressive concrete, which contains different components by weight, and the detailed values ​​are shown in Table 1.

[0062] in:

[0063] The weight ratio of fly ash, silica gel powder and talcum powder in the fine powder additive is 46:24:22.

[0064] The weight ratio of crushed stone particles and ceramic particles in the coarse aggregate is 720:560.

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Abstract

The invention relates to the field of water-permeable concrete, in particular to water-permeable compression-resistant concrete and a preparation method thereof, and the water-permeable compression-resistant concrete comprises the following components in parts by weight: 1050-1500 parts of coarse aggregate; 160-220 parts of fine sand; 150-210 parts of cement; 140-190 parts of water; 80-105 parts of a fine powder additive; 3.1-4.25 parts of a water reducing agent; wherein the coarse aggregate comprises gravel particles and ceramic particles, and the fine powder additive comprises fly ash, silica gel powder and talcum powder. The method has the effect of improving the compressive property of the concrete while maintaining the water permeability of the concrete.

Description

technical field [0001] The present application relates to the field of permeable concrete, in particular to a permeable compression-resistant concrete and a preparation method thereof. Background technique [0002] At present, permeable concrete is mainly sand-free macroporous permeable concrete, which is a kind of porous concrete mixed with coarse aggregate, admixture, cement, admixture and water. Coarse aggregate surface is coated with a thin layer of cement paste and bonded to each other to form a honeycomb structure with uniform distribution of pores. It has the characteristics of air permeability, insignificant capillarity, high water permeability, small amount of cement, and simple construction. The strength is 5-15MPa, generally used for road slope protection and permeable bricks. [0003] In the production process of permeable concrete, sand is not used, which is mainly to increase the porosity of concrete and improve the water permeability of concrete. In fact, th...

Claims

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Application Information

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IPC IPC(8): C04B28/04
CPCC04B28/04C04B2201/50C04B2111/00284C04B18/08C04B22/002C04B14/042C04B14/062C04B14/02C04B18/025C04B14/06C04B2103/302Y02W30/91
Inventor 李亚林刘雄飞盛夏斌程茂山陈前李翔
Owner 武汉鑫云海混凝土有限公司