Method of preparing concrete building material by utilizing high-silicon type iron tailings

A technology of concrete building and iron tailings, which is applied in the field of preparing concrete building materials by using high-silicon iron tailings, which can solve the problems of damaging the environment, difficulty in weathering tailings, and occupying land, so as to save cement, stabilize tailings performance, The effect of low production cost

Inactive Publication Date: 2015-01-28
NORTHEASTERN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The discharged tailings have been difficult to weather for many years. If they are not treated in time, they will only accumulate more and more, occupying land and damaging the environment.

Method used

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  • Method of preparing concrete building material by utilizing high-silicon type iron tailings
  • Method of preparing concrete building material by utilizing high-silicon type iron tailings
  • Method of preparing concrete building material by utilizing high-silicon type iron tailings

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Embodiment 1

[0031]

Embodiment 2

[0033]

Embodiment 3

[0035]

[0036] According to the quality mix ratio test, combined with the consideration of increasing the utilization of tailings, in concrete, the amount of cement replaced by high-silicon iron tailings can reach 10% to 30%, and the performance of the concrete is stable, and various technical indicators meet actual engineering requirements.

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Abstract

The invention relates to a method of preparing a concrete building material by utilizing high-silicon type iron tailings. The method comprises the following steps: recycling and storing the high-silicon type iron tailings; detecting the ingredients of the tailings; performing mechanical chemical activation, grain size analysis and activity analysis on the obtained tailings; mixing the tailings obtained by processing with sand, stones, cement and water according to a certain proportion; and utilizing a normal-temperature solidifying and molding technology to prepare the prepared mixture into the concrete building material with various technical performance indexes capable of meeting the practical needs of the engineering. The method of preparing concrete building material by utilizing high-silicon type iron tailings disclosed by the invention can be used for increasing the utilization force of the high-silicon type iron tailings and improving the current situation that the recovery rate of the existing tailings is not high.

Description

technical field [0001] The invention relates to the technical field of high-silicon type iron tailings recovery and utilization production, in particular to a method for preparing concrete building materials from high-silicon type iron tailings. Background technique [0002] my country is a big mining country, and the tailings stockpiles and discharges are huge. The discharged tailings have been difficult to weather for many years. If they are not treated in time, they will only accumulate and occupy land and damage the environment. Tailings will limit the sustainable development of my country's mining industry while causing enormous pressure on the environment. Effective use of tailings, turning waste into treasure, and turning waste into resources can not only reduce the environmental burden of mining production enterprises, reduce production costs, but also play a positive role in promoting industry progress and regional social and economic sustainable development . ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/08
Inventor 程云虹黄菲
Owner NORTHEASTERN UNIV
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