Metal mine waste rock concrete

Abstract

The invention relates to a metal mine waste rock concrete which is prepared from the following raw materials by weight: 200-400 parts of cement, 60-120 parts of granulated blast furnace slag, 0-60 parts of fly ash, 650-850 parts of metal mine waste rock machine manufactured sand, 250-350 parts of metal mine waste rock stone, 700-1,100 parts of gravel, 175-185 parts of water and 7.0-14.0 parts of polycarboxylate pumping agent. Some metal mine waste rock are reused, a novel idea for treating the metal mine waste rock is provided, the problems on engineering disaster aggravation, resource waste and environmental pollution are avoided, and the performance of the concrete prepared from the metal mine waste rock is superior to that of the traditional concrete.

Description

technical field [0001] The invention relates to the technical field of concrete, in particular to a green and environment-friendly concrete prepared by using metal mine waste rocks. Background technique [0002] With the rapid development of national infrastructure, my country's mines, especially metal mines, have been mined significantly. At present, the stockpiles of waste rocks stripped from mines in my country have reached tens of billions of tons, and only open-pit mines have stripped waste rocks every year. More than 100 million tons. Due to improper disposal of these mine solid wastes, it will not only lead to aggravated engineering disasters, waste of resources, and environmental pollution, but also cause serious harm to society, economy, and environment, which is closely related to the sustainable and stable development of the national economy. [0003] At the same time, traditional concrete needs to use gravel as the coarse aggregate and sand as the fine aggregate....

AI Technical Summary

Problems solved by technology

Due to improper disposal of these mine solid wastes, it will not only lead to aggravated engineering disasters, waste of resources, and environmental pollution, but also cause serious harm to society, economy, and environment, which is closely related to the sustainable and stable development of the national economy.

[0003] At the same time, traditional concrete needs to use gravel as the coarse aggregate and sand as the fine aggregate. Sand is made of rock debris formed and accumulated in natural waters such as rivers and lakes. However, as the amount of concrete used is increasing Large, natural sand resources are basically exhausted, so it is urgent to find a reasonable substitute

Images