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A kind of permeable concrete and its construction technology

A technology of permeable concrete and construction technology, which can be applied to cohesive pavement paved on site, roads, and sustainable waste treatment. Increase water permeability, maintain ecological balance, and adjust the effect of urban microclimate

Active Publication Date: 2019-02-01
GUANGZHOU UNIVERSITY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a kind of permeable concrete and its construction technology, so as to solve the problem that the concrete admixture in the prior art has many components mixed in, the production steps are numerous, the production process is troublesome and the slump is basically 0, and the cost too high problem

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  • A kind of permeable concrete and its construction technology

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A permeable concrete of the present invention comprises the following components by weight: 1410kg of stones, 52kg of sand, 608.64kg of cement, 32.03kg of silica fume, 160.17kg of water, 4.16kg of water reducing agent, wherein the particle size of the stones is 5-15mm, apparent density 2700Kg / m 3 , Bulk density 1410Kg / m 3 ; The cement is P.O42.5R ordinary Portland cement, density 3100Kg / m 3 ;Sand is river sand, fineness modulus 2.6-2.8, density 2600Kg / m 3 ; The purity of silicon powder is not less than 98%, and the density is 2700Kg / m 3 ; The water reducer is a polycarboxylic acid type water reducer.

[0025] Such as figure 1 As shown, the construction technology of this kind of permeable concrete is:

[0026] 1) Preparation before construction: check and accept the base layer, and set up the mold after the inspection results meet the requirements to ensure that the thickness, verticality, drainage slope, etc. of the base layer meet the design requirements; The su...

Embodiment 2

[0037] A permeable concrete of the present invention comprises the following components by weight: 1410kg of stones, 52kg of sand, 488.07kg of cement, 60.32kg of silica fume, 148.07kg of water, 10.97kg of water reducer, wherein the particle size of the stones is 5-15mm, apparent density 2700Kg / m 3 , Bulk density 1410Kg / m 3 ; The cement is P.O42.5R ordinary Portland cement, density 3100Kg / m 3 ;Sand is river sand, fineness modulus 2.6-2.8, density 2600Kg / m 3 ; The purity of silicon powder is not less than 98%, and the density is 2700Kg / m3 ; The water reducer is a polycarboxylic acid type water reducer.

[0038] The construction technology of this kind of permeable concrete is as follows:

[0039] 1) Preparation before construction: check and accept the base layer, and set up the mold after the inspection results meet the requirements to ensure that the thickness, verticality, drainage slope, etc. of the base layer meet the design requirements; The surface of the structural l...

Embodiment 3

[0050] A permeable concrete of the present invention comprises the following components by weight: 1410kg of stones, 52kg of sand, 497.07kg of cement, 60.32kg of silica fume, 144.49kg of water, 11.56kg of water reducer, wherein the particle size of the stones is 5-15mm, apparent density 2700Kg / m 3 , Bulk density 1410Kg / m 3 ; The cement is P.O42.5R ordinary Portland cement, density 3100Kg / m 3 ;Sand is river sand, fineness modulus 2.6-2.8, density 2600Kg / m 3 ; The purity of silicon powder is not less than 98%, and the density is 2700Kg / m 3 ; The water reducer is a polycarboxylic acid type water reducer.

[0051] The construction technology of this kind of permeable concrete is as follows:

[0052] 1) Preparation before construction: check and accept the base layer, and set up the mold after the inspection results meet the requirements to ensure that the thickness, verticality, drainage slope, etc. of the base layer meet the design requirements; The surface of the structural...

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Abstract

The invention discloses a permeable concrete and a construction process thereof. Stones, cement, sand, silicon powder, water, and a water reducing agent are used as aggregates of the permeable concrete. The construction process is as follows: pre-construction preparation-weighing raw materials-raw material mixing- Transportation-spreading, flat vibration-surface cleaning-seam treatment-construction completed; using the above scheme, the average relative density of permeable concrete of the present invention is 2169Kg / m3, the compressive strength is greater than 35MPa, and the water permeability coefficient of concrete pavement is greater than 1mm / s, the slump can reach more than 120mm, which can meet the pumping requirements when necessary; at the same time, due to the use of aggregates with large particle size and wide application range and the control of silicon rate, the cost is low. This construction process is suitable for permeable concrete pavement , squares, parking lots and other constructions can increase the water permeability of urban pavement while meeting the structural requirements, adjust the urban microclimate and maintain ecological balance.

Description

technical field [0001] The invention relates to the field of road building materials, in particular to a permeable concrete and a construction process thereof. Background technique [0002] With the prosperity of the social economy, the rapid development of urban construction, various houses and road construction made of concrete make the surface environment gradually harden, so that atmospheric evaporation is affected, resulting in lower air humidity and higher temperature in the city, forming a "heat island effect". This "heat island effect" affects people's normal life. The hardened ground not only affects the evaporation of the atmosphere, but also prevents rainwater from penetrating directly into the ground, causing people to travel inconveniently due to the accumulation of water on rainy days. At the same time, it increases the burden on urban drainage facilities, and the large amount of rainwater loss leads to a decrease in the groundwater level, and the growth of veg...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/04E01C11/22E01C7/14C04B14/02C04B14/06C04B18/14C04B103/30
CPCC04B14/02C04B28/04C04B2111/00284E01C7/142E01C11/226C04B14/06C04B18/146C04B2103/302Y02W30/91
Inventor 焦楚杰江涌波赖俊张国强
Owner GUANGZHOU UNIVERSITY
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