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Preparation method of pervious concrete

A technology of permeable concrete and mixture, applied in the field of concrete, can solve the problems of poor wear resistance and low strength of permeable concrete, and achieve the effects of improving bonding performance, enhancing smoothness and ensuring smoothness

Inactive Publication Date: 2021-03-26
成都果聚烽环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention: Aiming at the problems of low strength and poor wear resistance of pervious concrete, a preparation method of pervious concrete is provided

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0027] A preparation method of permeable concrete, the preparation method comprising the steps of:

[0028] (1) Stir the mixture with 1.3mol / L hydrochloric acid solution at a mass ratio of 5:7~9 at 600r / min for 1 hour, filter, collect the filter residue and filtrate, and mix the filtrate with 1.1mol / L sodium hydroxide solution by volume ratio 5: 3-4 mixed for 50 minutes, stirred evenly, stood for 2 hours, filtered, collected the filter cake, mixed the filter cake with the filter residue to obtain a composite material;

[0029] (2) Put the composite materials and additives into the ball milling tank according to the mass ratio of 5~6:1~3, under nitrogen protection, conduct ball milling at 500r / min for 20min, collect the ball abrasives, put the ball abrasives into the press, and grind them at 80 ~90℃, 250~300MPa, carry out hot pressing for 20min, and collect the pressed material;

[0030] (3) Put the pressing material into the calciner for calcination at 950-1100°C for 2 hours,...

Embodiment 1

[0033] The mixture is ball milled with aluminum ash, fly ash and blast furnace slag at a mass ratio of 6:5:3, sieved, and the sieved particles are collected to obtain the mixture.

[0034] The additives are titanium hydride, sodium carbonate and surfactants mixed uniformly in a mass ratio of 5:3:0.5 to obtain the product.

[0035] The surfactant is any one of alkylphenol polyoxyethylene ether and fatty acid polyoxyethylene ester.

[0036] The mixture is formed by mixing 4-vinylpyridine and acrylamide at a mass ratio of 5:3.

[0037] The emulsifier is any one of xylitol monostearate and polyoxyethylene xylitol monostearate.

[0038] The initiator is any one of ammonium persulfate and sodium persulfate.

[0039] A preparation method of permeable concrete, the preparation method comprising the steps of:

[0040] (1) Stir the mixture with 1.3mol / L hydrochloric acid solution at a mass ratio of 5:9 at 600r / min for 1 hour, filter, collect the filter residue and filtrate, and mix t...

Embodiment 2

[0045] The mixture is ball milled with aluminum ash, fly ash and blast furnace slag at a mass ratio of 6:4:3, sieved, and the sieved particles are collected to obtain the mixture.

[0046] The additive is titanium hydride, sodium carbonate and surfactant mixed uniformly at a mass ratio of 5:3:0.4 to obtain the product.

[0047] The surfactant is any one of alkylphenol polyoxyethylene ether and fatty acid polyoxyethylene ester.

[0048] The mixture is formed by mixing 4-vinylpyridine and acrylamide at a mass ratio of 5:3.

[0049] The emulsifier is any one of xylitol monostearate and polyoxyethylene xylitol monostearate.

[0050] The initiator is any one of ammonium persulfate and sodium persulfate.

[0051] A preparation method of permeable concrete, the preparation method comprising the steps of:

[0052] (1) Stir the mixture with 1.3mol / L hydrochloric acid solution at 600r / min for 1h at a mass ratio of 5:8, filter, collect the filter residue and filtrate, and mix the filtra...

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Abstract

The invention belongs to the technical field of concrete, and particularly relates to a preparation method of pervious concrete. Aluminum ash, fly ash and blast furnace slag are used as initial raw materials, metal substances in the raw materials are extracted through hydrochloric acid, metal ions are precipitated through a sodium hydroxide solution and mixed with residues, the mixture is mixed with an additive and subjected to ball milling to make full contact with the additive, then hot pressing is conducted, it is guaranteed that the interiors of the raw materials are closely combined, andthen calcination is conducted; in the calcining process, at first, metal hydroxide is converted into a metal oxide, and then combined with the additive to form a mixed foam metal substance under the action of the additive, the mixed foam metal substance is deposited on the surface and inside the residues, combined with a mixture, and initiated by an initiator; due to the reaction of the mixture, apolymer grafted particle surface is formed, so that the polymer tightly covers particle pore channels, and the strength and the wear resistance of the pervious concrete are further improved.

Description

technical field [0001] The invention belongs to the technical field of concrete, and in particular relates to a preparation method of permeable concrete. Background technique [0002] Pervious concrete is an environmentally friendly and highly permeable material that has been widely used in urban roads. As a road pavement material, permeable concrete has good water permeability and air permeability. Using the good permeability of permeable concrete to remove accumulated water in areas with high rainfall began in the 1990s. Studies have shown that the high-porosity structure of permeable concrete pavements can effectively infiltrate rainwater into the ground and reduce urban surface floods. In addition, the through-holes have sound-absorbing, Noise reduction function. The permeable concrete pavement also has good ecological functions, which can purify the infiltrated rainwater, adjust the surface temperature and humidity, and effectively slow down the urban heat island effe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B38/08C04B18/02C04B20/02C04B20/10C04B18/14C04B18/08C04B111/20
CPCC04B28/04C04B18/027C04B20/023C04B20/1033C04B2111/00284C04B2111/2038C04B2201/50C04B14/06C04B2103/302C04B18/023C04B14/34C04B18/141C04B18/08C04B18/04C04B18/144Y02W30/91
Inventor 雷四清
Owner 成都果聚烽环保科技有限公司
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