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Permeable concrete mixed with industrial waste and its production method

A technology of industrial waste residue and production method, applied in the field of concrete, can solve the problems of water permeability, high strength, high durability, poor performance of cementation performance and durability, etc., and achieves excellent frost resistance, low cost, The effect of high compressive strength

Inactive Publication Date: 2016-08-24
CHINA RAILWAY TUNNEL GRP ROAD & BRIDGE ENG CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Generally speaking, people tend to improve the preparation method of permeable concrete from the perspective of aggregate and cement. During the preparation, different aggregates and high-strength cement are selected to obtain permeable concrete with good water permeability, but the aggregate The key bonding performance and durability are not well reflected. For permeable concrete, it is difficult to have good water permeability, high strength and high durability, especially when there are many components of industrial waste slag admixture.

Method used

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  • Permeable concrete mixed with industrial waste and its production method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Preparation steps of permeable concrete mixed with industrial waste:

[0029] (1) Fly ash: silica fume: carbide slag: cement: discontinuously graded aggregate: water: polycarboxylate high-performance water reducer = 25:10:10:30:280:25:1.0 To weigh the raw materials of the corresponding components;

[0030] (2) Pre-mix the fly ash, silica fume, carbide slag, and cement ball milled in step (1) with a ball mill for 30 minutes, and then add the water and polycarboxylate high Performance Water reducer is stirred for 2 minutes, then gravel with a particle size of 2.5-5.0 mm is added and stirred for 2 minutes, and gravel with a particle size of 10-15 mm is stirred for 2 minutes to carry out step-by-step wrapping mixing, and then the permeable concrete can be obtained. admixture;

[0031] (3) The permeable concrete mixture is vibrated for 30s and then pressed under a pressure of 2.5 MPa to obtain the permeable concrete.

[0032] Under the standard concrete curing conditions ...

Embodiment 2

[0035] Preparation steps of permeable concrete mixed with industrial waste:

[0036] (1) Fly ash: silica fume: carbide slag: cement: discontinuously graded aggregate: water: polycarboxylate high-performance water reducer = 20:5:13:25:270:23:0.8 To weigh the raw materials of the corresponding components;

[0037] (2) Pre-mix the fly ash, silica fume, carbide slag, and cement ball milled in step (1) for 40 minutes with a ball mill, and then add the water and polycarboxylic acid high Performance Water reducer is stirred for 1.5min, then gravel with a particle size of 2.5-5.0mm is added and stirred for 1.5min, and gravel with a particle size of 10-15mm is stirred for 3min to carry out step-by-step wrapping stirring, and then water permeability can be obtained concrete mixes;

[0038] (3) The permeable concrete mixture is vibrated for 20s and then pressed at a pressure of 5 MPa to obtain permeable concrete.

[0039] The obtained permeable concrete is subjected to performance tests...

Embodiment 3

[0041] Preparation steps of permeable concrete mixed with industrial waste:

[0042] (1) Fly ash: silica fume: carbide slag: cement: discontinuously graded aggregate: water: polycarboxylate high-performance water reducer = 30:12:15:35:290:28:1.2 To weigh the raw materials of the corresponding components;

[0043] (2) Pre-mix the fly ash, silica fume, carbide slag, and cement ball milled in step (1) for 60 minutes with a ball mill, and then add the water and polycarboxylic acid system high Performance Water reducer is stirred for 1 minute, then gravel with a particle size of 2.5-5.0 mm is added and stirred for 3 minutes, and crushed stone with a particle size of 10-15 mm is stirred for 2 minutes to carry out step-by-step wrapping mixing, and then the permeable concrete can be obtained. admixture;

[0044] (3) The permeable concrete mixture is vibrated for 10 seconds and then pressed under a pressure of 10 MPa to obtain permeable concrete.

[0045] The obtained permeable conc...

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Abstract

The invention discloses an industrial waste residue-doped water-permeable concrete and a production method thereof, and belongs to the technical field of concrete. The industrial waste residue-doped water-permeable concrete comprises, by mass, 20 to 30 parts of fly ash, 5 to 12 parts of silica fume, 10 to 15 parts of acetylene sludge, 25 to 35 parts of cement, 270 to 290 parts of a gap-graded aggregate, 23 to 28 parts of water, and 0.8 to 1.2 parts of a water reducer. According to the production method, the raw materials above are subjected to a series of operation such as stirring, vibrating, and pressing so as to obtain the industrial waste residue-doped water-permeable concrete at last. The industrial waste residue-doped water-permeable concrete is excellent in permeability performance and freezing resistance, high in compressive strength, excellent in durability, and low in cost.

Description

technical field [0001] The invention relates to the technical field of concrete, in particular to permeable concrete mixed with industrial waste residue and a production method thereof. Background technique [0002] With the development of my country's economy and the acceleration of urban construction, the surface of modern cities is gradually covered by concrete pavement. While concrete pavement brings convenience to people's travel, it also causes certain adverse effects. Traditional concrete pavement: (1) Lack of water permeability, which means that rainwater cannot penetrate into the ground, resulting in serious water shortage for surface plants and difficulty in growing normally. (2) Lack of air permeability, impermeable road surface is difficult to exchange heat and moisture with the air, and lacks the ability to adjust the urban surface temperature and humidity, resulting in the so-called "heat island phenomenon". [0003] Based on the shortcomings of traditional co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/00C04B18/08C04B14/06C04B18/04
CPCY02W30/91
Inventor 于全胜杜华林杜建华沈红云李子成张爱菊杜立峰
Owner CHINA RAILWAY TUNNEL GRP ROAD & BRIDGE ENG CO LTD