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Steel slag and recycled aggregate cooperated permeable concrete

A technology of permeable concrete and recycled coarse aggregate, applied in the field of concrete, can solve the problems of insufficient recycling rate of construction waste, etc., and achieve the effect of low price, obvious economic benefits and cost reduction

Active Publication Date: 2017-05-24
SHANGHAI MCC ENVIRONMENTAL ENG TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to incomplete statistics, the recycling rate of construction waste is actually less than 5%.
From these data, we can see that the amount of construction waste generated in my country every year is huge, but the utilization rate of these construction wastes is only 5%, and the construction waste disposal methods are mainly temporary storage and landfill disposal

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] The permeable concrete in this embodiment includes base concrete and surface concrete. The raw materials for each cubic base concrete include: cement A 360kg, 5-19mm recycled coarse aggregate 1000kg, 3-15mm steel slag 615kg, water 140kg; The raw materials for surface concrete preparation include: cement A 400kg, 5-10mm recycled coarse aggregate 430kg, 3-10mm steel slag 1435kg, water 150kg.

[0048] The preparation method of permeable concrete includes the steps:

[0049] (1) Weigh the recycled coarse aggregate and steel slag according to the ratio, and add 8-12kg of water to each cubic meter of base concrete or surface concrete to make it saturated with water;

[0050] (2) Put the recycled coarse aggregate and steel slag saturated with water into the mixer, add 65~75kg of water per cubic meter of base concrete or surface concrete, and mix for 20~30s;

[0051] (3) Put in the cement, add the remaining water, and stir for 40-60s;

[0052] (4) Obtain the mixed base concrete and surf...

Embodiment 2

[0056] The permeable concrete in this embodiment includes base concrete and surface concrete. The raw materials for each cubic base concrete include: cement B 360kg, 5-19mm recycled coarse aggregate 850kg, 3-15mm steel slag 820kg, and water 152kg; The raw materials for concrete preparation include: cement A 400kg, 5-10mm recycled coarse aggregate 144kg, 3-10mm steel slag 1845kg, and water 143kg.

[0057] The preparation method of permeable concrete includes the steps:

[0058] (1) Weigh the recycled coarse aggregate and steel slag according to the ratio, and add 8-12kg of water to each cubic meter of base concrete or surface concrete to make it saturated with water;

[0059] (2) Put the recycled coarse aggregate and steel slag saturated with water into the mixer, add 65~75kg of water per cubic meter of base concrete or surface concrete, and mix for 20~30s;

[0060] (3) Put in the cement, add the remaining water, and stir for 40-60s;

[0061] (4) Obtain the mixed base concrete and surfa...

Embodiment 3

[0065] The permeable concrete of this embodiment includes base concrete and surface concrete. The raw materials for each cubic base concrete include: cement B 360kg, 5-19mm recycled coarse aggregate 1300kg, 3-15mm steel slag 205kg, and water 138kg; The raw materials for concrete preparation include: 400kg of cement A, 716kg of 5-10mm recycled coarse aggregate, 1025kg of 3-10mm steel slag, and 157kg of water.

[0066] The preparation method of permeable concrete includes the steps:

[0067] (1) Weigh the recycled coarse aggregate and steel slag according to the ratio, and add 8-12kg of water to each cubic meter of base concrete or surface concrete to make it saturated with water;

[0068] (2) Put the recycled coarse aggregate and steel slag saturated with water into the mixer, add 65~75kg of water per cubic meter of base concrete or surface concrete, and mix for 20~30s;

[0069] (3) Put in the cement, add the remaining water, and stir for 40-60s;

[0070] (4) Obtain the mixed base concr...

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Abstract

The invention relates to the field of concrete, in particular to permeable concrete taking steel slag and recycled aggregates as main raw materials and a preparation method of the permeable concrete. The permeable concrete comprises base-layer concrete and surface-layer concrete, wherein each cubic meter of the base-layer concrete comprises the preparation raw materials as follows: 360kg of cement, 850 to 1300kg of recycled coarse aggregates, 205 to 820kg of steel slag and 138 to 152kg of water; each cubic meter of the surface-layer concrete comprises the preparation raw materials as follows: 400kg of cement, 144 to 716kg of recycled coarse aggregates, 1025 to 1845kg of steel slag and 143 to 157kg of cement. A double-layer structured permeable pavement paved by the permeable concrete has suitable strength, and the double-layer structured permeable pavement still has the permeable rate of 100% after being used for 7 months.

Description

Technical field [0001] The invention relates to the field of concrete, in particular to a permeable concrete with steel slag and recycled aggregate as main raw materials and a preparation method thereof. Background technique [0002] Permeable concrete, also known as porous concrete, sandless concrete, and permeable floor, was originally developed and used by countries such as Europe, America, Japan, and other countries for the defects of the original urban road pavement. Permeable concrete can allow rainwater to flow into the ground, effectively replenish groundwater, alleviate the environmental problem of the city's sharp drop in groundwater level, and effectively eliminate the harm of environmental pollution such as oil compounds on the ground. Therefore, permeable concrete is an excellent paving material for protecting groundwater, maintaining ecological balance, and alleviating urban heat island effect. It is conducive to the sound development of the human living environment...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/08C04B28/04C04B18/14C04B18/04
CPCC04B18/04C04B18/142C04B28/04C04B28/082C04B2111/00284C04B2111/0075C04B22/002Y02W30/91
Inventor 汪海龙金强王幼琴韩甲兴朱李俊
Owner SHANGHAI MCC ENVIRONMENTAL ENG TECH CO LTD