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High-strength pervious concrete admixture and pervious concrete

A technology of permeable concrete and admixtures is applied in the field of concrete to achieve good compressive strength and permeability coefficient, achieve sustainable development and maintain ecological balance.

Active Publication Date: 2016-12-07
威海市南海新区万和新型建筑材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This is a special paving material that cannot be realized by traditional paving and general permeable bricks.

Method used

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  • High-strength pervious concrete admixture and pervious concrete

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] High-strength permeable concrete admixture raw materials (parts by weight): 10 parts of redispersible rubber powder, 17 parts of raw gypsum powder, 5.4 parts of water reducing agent, and 18 parts of nanocomposite filler.

[0034] The water reducer is composed of three (1-methylethyl) sodium naphthalenesulfonate, sodium 6-hydroxy-2-naphthalenesulfonate, and sodium 2,6-di-tert-butylnaphthalenesulfonate in a mass ratio of 1: 1:1 Stir and mix to get even.

[0035] The nanocomposite filler is obtained by uniformly stirring and mixing titanium phosphate, copper tungstate and copper oxalate in a mass ratio of 1:1:1.

[0036] Preparation of high-strength permeable concrete admixture: Stir and mix redispersible rubber powder, raw gypsum powder, water reducer, and nanocomposite fillers evenly.

Embodiment 2

[0038] It is basically the same as Example 1, except that the water reducer is mixed with 6-hydroxy-2-naphthalene sodium sulfonate and 2,6-di-tert-butylnaphthalene sodium sulfonate in a mass ratio of 1:1 Get even. Obtain the high-strength permeable concrete admixture of embodiment 2.

Embodiment 3

[0040] Basically the same as Example 1, the only difference is that the water reducer is composed of three (1-methylethyl) sodium naphthalene sulfonate and 2,6-di-tert-butylnaphthalene sodium sulfonate in a mass ratio of 1: 1 Stir to mix evenly to obtain. Obtain the high-strength permeable concrete admixture of embodiment 3.

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Abstract

The invention discloses a high-strength pervious concrete admixture and pervious concrete. The high-strength pervious concrete admixture is prepared from, by weight, 5-15 parts of redispersible rubble powder, 15-20 parts of gypsum powder, 1-10 parts of water reducer and 10-30 parts of nano-composite filler. Through reasonable matching, the water reducer and nano-composite filler suitable for the high-strength pervious concrete admixture and usage amount of the water reducer and nano-composite filler are optimized, the pervious concrete prepared by means of the admixture has high compressive strength and permeation coefficient, various engineering requirements for water permeation of concrete can be met, and ecological balance and sustainable development can be maintained.

Description

technical field [0001] The invention relates to the technical field of concrete, in particular to a high-strength permeable concrete admixture and permeable concrete. Background technique [0002] In the process of urbanization, the surface of modern cities is gradually hardened and covered by water-blocking materials such as buildings and concrete, forming an ecological "artificial desert". At the same time of great convenience, these impermeable pavements also have a great negative impact on the ecological environment of the city. First of all, the traditional pavement emphasizes the durability and usability of the ground, but the impermeability of this pavement completely blocks the precious natural precipitation from the underlying soil and groundwater, and most of the precipitation passes through the urban drainage system The discharge of the pipe network into surface water sources such as rivers, lakes and seas, coupled with the excessive extraction of urban groundwat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B24/20
CPCC04B28/04C04B40/0039C04B2111/00284C04B2201/50C04B2103/0057C04B22/143C04B2103/302C04B14/366C04B14/36C04B16/00C04B14/28
Inventor 黄毅
Owner 威海市南海新区万和新型建筑材料有限公司
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