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Steel slag powder-doped concrete and preparation method thereof

A technology of steel slag powder and concrete, which is applied in the field of building materials, can solve the problems of high flexural strength, achieve high flexural strength, improve flexural and compressive strength, and have good activity

Inactive Publication Date: 2017-06-13
贵州贵鑫科技环保建材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The first object of the present invention is to provide a concrete mixed with steel slag powder to solve the problem of waste treatment of steel slag. The concrete mixed with steel slag powder reasonably uses steel slag powder instead of cement, and has high compressive and flexural strength. Etc

Method used

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  • Steel slag powder-doped concrete and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] The concrete mixed with steel slag powder provided by this application specifically includes the following components:

[0043] Aluminate cement 40kg, steel slag powder 20kg, quartz sand 90kg, water 10kg and gravel 100kg.

[0044] The preparation method of the concrete mixed with steel slag powder specifically comprises the following steps:

[0045] Add cement, steel slag powder, stones and quartz sand into the mixer in sequence for 2 to 3 minutes and dry mix for 2 to 3 minutes, pour water and continue stirring until slurry appears to obtain the concrete mixed with steel slag powder.

Embodiment 2

[0047] The concrete mixed with steel slag powder provided by this application specifically includes the following components:

[0048] P.O 32.5 60kg, specific surface area is 450m 2 / kg steel slag powder 40kg, quartz sand 110kg, water 20kg, stones with a particle size of 5mm 100kg and stones with a particle size of 20mm 100kg.

[0049] The preparation method of the concrete mixed with steel slag powder is the same as that in Example 1.

Embodiment 3

[0051] P.O 42.5 45kg, specific surface area 500m 2 / kg steel slag powder 25kg, quartz sand 95kg, water 11kg, stones with a particle size of 10mm 50kg and stones with a particle size of 20-40mm 50kg.

[0052] The preparation method of the concrete mixed with steel slag powder is the same as that in Example 1.

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Abstract

The invention provides steel slag powder-doped concrete and a preparation method thereof. The steel slag powder-doped concrete is prepared from the following components in parts by weight: 40-60 parts of cement, 20-40 parts of steel slag powder, 90-110 parts of quartz sand, 10-20 parts of water and 100-200 parts of stones. After the steel slag powder is doped into the steel slag powder-doped concrete, the compressive strength and the breaking strength of the concrete can be effectively improved. The specific surface area of the added steel slag powder is 450-600m<2> / kg; and the steel slag powder is good in activity. A traditional preparation method of the concrete is continued by the preparation method of the steel slag powder-doped concrete. The preparation method provided by the invention has the advantages of being convenient, simple and easy to operate, and is suitable for massive production and large-scale application.

Description

technical field [0001] The invention relates to the field of building materials, in particular to concrete mixed with steel slag powder and a preparation method thereof. Background technique [0002] my country is a major steel producer in the world. In 2012, the output of crude steel reached 716 million tons. The smelting process produced more than 200 million tons of blast furnace slag and nearly 100 million tons of various steel slag. At present, the slag has been basically comprehensively utilized. The production technology and products of slag micropowder The application is very mature, and the comprehensive utilization rate exceeds 80%. However, due to the high hardness and difficulty of grinding steel slag, the comprehensive utilization of steel slag is mostly for iron removal treatment, and has not been fully utilized at a deeper level. The comprehensive utilization rate is only 20%. The accumulated steel slag accumulated over the years not only occupies a large amount...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00C04B28/04C04B28/06C04B28/34C04B18/14
CPCC04B18/142C04B28/00C04B28/04C04B28/06C04B28/34C04B2201/50C04B14/06C04B14/02Y02W30/91
Inventor 翁孙康倪世通
Owner 贵州贵鑫科技环保建材有限公司
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