Water permeable concrete

A permeable concrete and cementitious material technology, which is applied in the field of concrete processing, can solve the problems of low freeze-thaw resistance, poor bearing capacity, and small cohesive force, and achieve excellent frost resistance, good durability, and improved frost resistance Effect

Active Publication Date: 2019-03-01
辛集市建和预拌混凝土有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, permeable concrete with good water permeability, as a pavement material, requires both sufficient strength and good water permeability. Problems such as poor bearing capacity, small cohesion between coarse aggregates, low freeze-thaw resistance, and easy cracking often occur in engineering.

Method used

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  • Water permeable concrete

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A permeable concrete, comprising the following raw material components in parts by weight: 216kg of cement, 84kg of fly ash, 1000kg of stones, 10kg of fly ash floating beads, 1kg of sodium alkylsulfonate, 5kg of polycarboxylate high-performance water reducer, steel Fiber 3kg, water 100kg, polyacrylonitrile fiber 6.67kg and dura fiber 3.33kg. Wherein, the length of the dura fiber and the length of the steel fiber are both greater than the length of the nylon fiber.

Embodiment 2

[0031]A permeable concrete, comprising the following raw material components by weight: 224kg of cement, 96kg of fly ash, 1100kg of stones, 15kg of fly ash floating beads, 2kg of sodium alkylbenzene sulfonate, 7kg of polycarboxylate high-performance water reducer, Steel fiber 3.5kg, water 110kg, polyacrylonitrile fiber 9.4kg and dura fiber 5.6kg. Wherein, the length of the dura fiber and the length of the steel fiber are both greater than the length of the nylon fiber.

Embodiment 3

[0033] A permeable concrete, comprising the following raw material components by weight: 231.2kg of cement, 108.8kg of fly ash, 1150kg of stones, 18kg of fly ash floating beads, 2kg of sodium alkylsulfonate, 2kg of sodium alkylbenzenesulfonate, poly Carboxylic acid high-performance water reducing agent 8.5kg, steel fiber 3.8kg, water 118kg, polyacrylonitrile fiber 9.4kg and dura fiber 7.6kg. Wherein, the length of the dura fiber and the length of the steel fiber are both greater than the length of the nylon fiber.

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Abstract

The invention relates to the technical field of the concrete processing and in particular to water permeable concrete. The water permeable concrete comprises the following raw material components in parts by weight: 300-380 parts of a binding material, 1000-1250 parts of coarse aggregate, 10-30 parts of coal ash floating beads, 1-5 parts of an air entraining agent, 5-12 parts of an additive, 3-5 parts of steel fibers, 100-135 parts of water and 10-30 parts of organic fibers, wherein the organic fibers comprise polyacrylonitrile fibers and Dura fibers of which a weight matching ratio is 1:(0.5-1). The concrete has better water permeability performance, and has higher compressive strength and freezing and thawing resistance.

Description

technical field [0001] The invention relates to the technical field of concrete processing, in particular to permeable concrete. Background technique [0002] Concrete, referred to as "concrete (tóng)", refers to the collective name of engineering composite materials in which aggregates are cemented into a whole by cementitious materials. Generally speaking, the term concrete refers to the cement concrete obtained by using cement as the cementitious material, sand and stone as the aggregate; mixed with water (may contain admixtures and admixtures) in a certain proportion, and stirred. Concrete, which is widely used in civil engineering. With the development of modern building technology, higher demands are placed on cement concrete building materials. Concrete is a honeycomb concrete material that uses single-grain coarse aggregate as the skeleton, and cement paste is wrapped on the surface of the coarse aggregate particles. [0003] At present, concrete for urban roads n...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B18/08C04B38/10C04B14/48C04B16/06
CPCC04B14/48C04B16/0633C04B16/0658C04B18/082C04B28/04C04B38/10C04B2111/00284C04B2201/50C04B18/08C04B14/02C04B24/16C04B24/24C04B22/002C04B24/20C04B38/0074Y02W30/91
Inventor 赵文
Owner 辛集市建和预拌混凝土有限公司
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