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Method for improving anti-clogging capacity of high-water-permeability concrete

A permeable concrete and anti-clogging technology, applied in the field of building materials, can solve the problems of reduced drainage function of permeable pavement, disappearance of water permeable function of permeable pavement, and reduced permeability of pavement, so as to reduce economic expenditure, reduce resource consumption, and prevent clogging Effect

Inactive Publication Date: 2018-05-08
TIANJIN CHENGJIAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, after the general permeable concrete pavement or permeable brick pavement is built, a large amount of suspended particles such as mud sand, debris or organic fine particles contained in the surface runoff generated by rainfall continue to infiltrate into the pores of the permeable concrete, resulting in clogging of the pores and resulting in infiltration of the pavement. The performance is reduced, the drainage function of the permeable pavement is reduced, and finally the permeable function of the permeable pavement disappears

Method used

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  • Method for improving anti-clogging capacity of high-water-permeability concrete
  • Method for improving anti-clogging capacity of high-water-permeability concrete
  • Method for improving anti-clogging capacity of high-water-permeability concrete

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Experimental program
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Embodiment 1

[0026] Embodiment 1: Comparison with various indexes of ordinary permeable concrete

[0027] Table 1 Permeable concrete mix ratio

[0028]

[0029] Take each material according to Table 1, after mixing, stir with a concrete mixer for 3 minutes, and vibrate to form a method; then put the stirred mixture upside down in a test mold of 100×100×100mm, demould it after 24 hours and put it in a standard curing room ( Temperature is 20 ℃, humidity is 90%) curing 28 days. The 28-day compressive strength, 1 / 6h, 1h, 4h, 24h, porosity and permeability coefficient of permeable concrete are shown in Table 2.

[0030] Take clay as the blocking substance, take 1g of the blocking substance each time and apply it evenly on the surface of the test block, tap it lightly with a rubber hammer, and then place it in the natural environment for 3 days, 10 times in a row, to simulate the actual use of permeable concrete the blocking process. And measure the water permeability coefficient of each ...

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Abstract

The invention discloses a method for improving anti-clogging capacity of high-water-permeability concrete. Surfactant is added into water permeable concrete according to the method to improve a surface structure of internal pores of the concrete and to reduce the adhesion capacity of tiny particles in the pores, thereby effectively preventing the water permeable concrete from being blocked by tinyparticles; and by adopting the method, the general clogging problem of the water permeable concrete in the use process can be solved, and the service life of the water permeable concrete can be prolonged.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to a method for improving the anti-blocking ability of permeable concrete. Background technique [0002] Permeable concrete is a kind of concrete with continuous pores made by a special process, which has both certain strength and certain air and water permeability. Permeable concrete pavement can alleviate urban rain and flood, reduce slippage and glare in rainy days, improve the safety and comfort of driving, absorb sound and reduce noise, and alleviate the urban heat island effect. [0003] However, after the general permeable concrete pavement or permeable brick pavement is built, a large amount of suspended particles such as mud sand, debris or organic fine particles contained in the surface runoff generated by rainfall continue to infiltrate into the pores of the permeable concrete, resulting in clogging of the pores and resulting in infiltration of the ...

Claims

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Application Information

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IPC IPC(8): C04B24/42C04B24/26C04B24/36C04B103/40
CPCC04B24/26C04B24/2641C04B24/36C04B24/42C04B2103/406
Inventor 张磊宋林柯荣辉杨久俊王雪平
Owner TIANJIN CHENGJIAN UNIV
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