Evaluation of the Aggregate Produced From Wastes of Quartzite Mining Sites to Use in Concrete

被引：0

作者：

Collares, E. G. ^{[1
]}

Francklin, I., Jr. ^{[1
]}

Motta, L. A. C. ^{[2
]}

机构：

[1] Univ Estado Minas Gerais, Fdn Ensino Super Passos, Av Juca Stockler 1130, Passos, MG, Brazil

[2] Univ Fed Uberlandia, Uberlandia, MG, Brazil

来源：

SOILS AND ROCKS | 2012年 / 35卷 / 03期

关键词：

quartzite; mining waste; aggregate for construction; concrete;

D O I：

暂无

中图分类号：

P5 [地质学];

学科分类号：

0709 ; 081803 ;

摘要：

The quartzite found in rock formations in the Southwestern Minas Gerais - Brazil has been, along the years, explored and commercialized as "coating stone". The quantity of waste coming from the processing and exploration process, however, is superior to 90% from the extracted product in most of the mining sites, determining a serious environmental passive. This work presents results which can motivate the alternative use of the materials that are dumped on piles of waste. The research involved a petrographic analysis of quartzite occurring in the principal mines of the region; evaluation of aggregates produced in two kinds of crushers; evaluation of the physical and mechanical properties of the rock and evaluation of the physical and mechanical properties of the concrete manufactured with the quartzite aggregate. The results of the technological tests carried out on the rock material were satisfactory and meet all the specifications for the use in concrete. The samples of concrete prepared with the quartzite aggregate presented results of strength similar to the ones manufactured with the aggregate which are used commercially in the region today.

引用

页码：251 / 266

页数：16