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Steel slag concrete

A technology of steel slag concrete and steel slag, applied in the field of concrete, can solve rare problems, and achieve the effects of improving greenness, obvious economic benefits, and saving raw material costs

Inactive Publication Date: 2019-08-30
CHINA MCC 2 GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there are few studies on using steel slag instead of coarse aggregate to configure steel slag concrete.

Method used

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Embodiment Construction

[0008] In order to better compare the difference in mechanical properties and durability between steel slag concrete and ordinary concrete, comparative experiments were carried out with reference to the mix ratio of ordinary concrete.

[0009] The preparation steps of steel slag concrete mix ratio of the present invention are:

[0010] 1. First of all, determine the various raw materials for concrete preparation. Since steel slag is used as the coarse aggregate, steel slag is easy to absorb water and burst, which is not conducive to the stability of concrete volume.

[0011] For the above-mentioned various concrete raw materials, select the preferred supplier company, select at least three supply companies for each material, conduct laboratory sampling and testing, perform testing and comparison analysis on performance indicators and chemical components, and select the most suitable material supplier: choose Wulashan cement for cement, Fly ash is selected Huadian fly ash and s...

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Abstract

The invention relates to steel slag concrete. The steel slag concrete is composed of coarse aggregate, fine aggregate, cement, fly ash, zeolite powder, a water reducing agent and water; the steel slagconcrete is characterized in that all the coarse aggregate adopts steel slag, the fine aggregate adopts manufactured medium sand, and the water reducing agent adopts a polycarboxylic acid high-efficiency water reducing agent; and the steel slag concrete comprises the following components, in parts by weight: 1068-1102 parts of the coarse aggregate, 742-788 parts of the fine aggregate, 274-286 parts of the cement, 79-81 parts of the fly ash, 39.6-40.4 parts of the mineral powder, 8.74-8.89 parts of the water reducing agent, and 178.2-181.8 parts of the water. The steel slag concrete provided by the invention has the following advantages: the steel slag concrete can save costs of raw materials, can meet the requirements of value added tax exemption of building materials in China, and has alower unit product price than that of ordinary concrete, and obvious economic benefits; and the steel slag concrete can save land resources, save natural resource consumption, reduce environmental damage, and improve concrete greenness.

Description

technical field [0001] The invention relates to steel slag concrete, which belongs to the technical field of concrete. Background technique [0002] At present, my country's steel industry is developing rapidly. my country is not only a big steel producer, but also a big consumer. As one of the main waste slags in steel production, the annual discharge of steel slag is also increasing. According to statistics, my country's annual discharge of steel slag is More than 20 million tons, but the overall utilization level of these steel slags is not high. The discharge of a large amount of waste steel slag not only causes waste of resources, but also occupies land and pollutes the environment. Therefore, all steel-producing countries have put the issue of steel slag utilization on the agenda, and have invested a lot of human, financial and material resources in development and application. At present, there have been relevant reports on using steel slag to replace sand in concrete...

Claims

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Application Information

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IPC IPC(8): C04B28/00C04B18/14
CPCC04B18/142C04B28/00C04B2201/50C04B14/06C04B18/08C04B14/047C04B24/24C04B18/12Y02W30/91
Inventor 郭文娟殷项明赵同伟关凯梅张巍郝鹏朱洪波张招磊
Owner CHINA MCC 2 GRP CO LTD
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