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Concrete water-permeable brick using steel slag as aggregate

A permeable brick and concrete technology, applied in the field of building materials, can solve the problems of waste of resources and environment, high energy consumption, low water permeability, etc., and achieve the effect of strong pressure resistance and low energy consumption

Inactive Publication Date: 2007-08-01
SUZHOU HUAJIA NEW BUILDING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the common pavement permeable bricks are roughly divided into sintered ceramic permeable bricks and cement permeable bricks. However, sintered ceramic permeable bricks have high cost and high energy consumption, and cannot be widely promoted at present, while cement permeable bricks either have low water permeability. Either the water permeability is good, but the compressive strength is not high. It is difficult to balance the performance of these two aspects. Steel slag is a kind of metallurgical solid waste that is currently difficult to use with high added value. At present, a large amount of waste slag produced by steelmaking in major iron and steel plants in my country cannot be disposed of. , long-term land occupation, waste of resources and cause certain environmental pollution

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] A concrete permeable brick using steel slag as an aggregate is made of steel slag, cement, reinforcing agent, coloring powder and water as raw materials according to the following formula.

[0019] Raw material specification dosage (kg)

[0020] Portland cement C52.5 conch 350

[0021] High quality inorganic pigment Bayer 0~10.5

[0022] Ethylene polymer polymer emulsion Solid content 40% 1.75~21

[0023] Steel slag 1~3mm 150~300

[0024] Steel slag 5~8mm 1450~1600

[0025] Water Tap water 90~100

[0026] The method for producing steel slag concrete permeable bricks is carried out according to the following steps:

[0027] material selection

[0028] Thermally purify and adjust the waste steel slag to reduce the content of free calcium oxide in the steel slag to less than 3%, and the crushing value is less than 5%. Then, the scrap steel slag is crushed and classified into two specifications of 1-3mm and 5-8mm for use ;

[0029] Cement, C52.5 low-alkali cement is...

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PUM

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Abstract

The invention discloses a concrete permeable brick of steel slag as aggregate, which comprises the following steps: allocating raw material with 70-85% steel slag with grinding value less than 5% and free calcium oxide less than 3%, 10-25% C52.5 low-alkaline cement, 0.5-6% reinforcer, 0-3% coloring powder and 3.5-5% water; blending raw materials in the mixer; distributing; molding; obtaining the product.

Description

technical field [0001] The invention belongs to the field of building materials, in particular to a permeable road brick formed by pressing waste steel slag and cement at normal temperature. Background technique [0002] At present, the common pavement permeable bricks are roughly divided into sintered ceramic permeable bricks and cement permeable bricks. However, sintered ceramic permeable bricks have high cost and high energy consumption, and cannot be widely promoted at present, while cement permeable bricks either have low water permeability. Either the water permeability is good, but the compressive strength is not high. It is difficult to balance the performance of these two aspects. Steel slag is a kind of metallurgical solid waste that is currently difficult to use with high added value. At present, a large amount of waste slag produced by steelmaking in major iron and steel plants in my country cannot be disposed of. , long-term land occupation, waste of resources and...

Claims

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Application Information

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IPC IPC(8): C04B28/00C04B18/14
CPCC04B2111/00284C04B2111/00017C04B28/02Y02W30/91C04B16/0641C04B18/142C04B40/0028
Inventor 钱卫胜
Owner SUZHOU HUAJIA NEW BUILDING
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