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The copper tailings Cypress House Shuikoushan test used in building materials

Author: ZhaoYuRong
Tutor: LiXiangYang
School: Nanhua University
Course: Mining engineering
Keywords: Copper tailings Radioactivity Pastes Mechanical Properties
CLC: TU522.1
Type: Master's thesis
Year: 2011
Downloads: 35
Quote: 0
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Abstract


Mine tailings disposal and utilization issues involving today 's social development , population , resources , environment, three major themes , to a considerable extent affect the sustainable development of human society , and therefore aroused great attention . In this paper, Cypress House Shuikoushan copper mine tailings as the main object of study , to investigate the feasibility and technical problems of the tailings as raw materials to produce building materials ( unburned ) . Mine tailings prepared Pastes , less investment and quick , while to adapt to the needs of the development of the wall material reform , is conducive to the promotion of social civilization , development and progress . This paper systematically analyzed the copper tailings mineral composition, chemical composition , particle size and radioactivity , and this is a prerequisite for the unburned brick Experimental study reached the following conclusions : ( 1) the quality of the radiological monitoring and indoor uranium tailings fraction analysis shows that : the tailings natural uranium rich in fine tailings , low mass fraction of the coarse fraction of uranium tailings . Tailings re - election of copper tailings (about 60% of the total tailings ) basic coarse fraction of the uranium mass fraction of 0.004% . According to the standard of GB 6566-2001 \part of the coarse fraction of tailings for the production of building materials . ( 2 ) brick products of the mineral components have certain requirements , studies have shown that test the physical and chemical properties of raw materials , tailings Cao, MgO content is very low , and SiO 2 , Al 2 O 3 , of Fe 2 O 3 content is higher , so mineral composition is in line with the brick-making requirements of these chemical a composition conducive synthesized in water at normal temperature or under low temperature conditions , can maintain a stable state newborn minerals suitable for preparing unburned . (3) under the conditions of a certain amount of cement preparation tailings test blocks , combined with the provisions of the national standard of radionuclide limits the solid dry compound tailings and river sand ratio 3:7 . At the same time in the brick-making process in the tailings , river sand mixed with a certain amount of help to improve the mechanical properties of the tailings Pastes .

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CLC: > Industrial Technology > Building Science > Building Materials > Non-metallic materials > Brick, tile and block > Brick
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