Blended material, preparation method thereof and concrete prepared through blended material

Abstract

The invention provides a blended material. The pulverized and blended raw materials of the material include, by weight: 30 to 70 % of basalt, 0 to 30% of sandstone, 18 to 22% of fly ash or calcined coal gangue, 3 to 6% of gypsum, 5 to 10% of portland cement clinker or sulfur cement clinker and 0 to 15% of manganese ore slag or phosphor slag powder. The blended material is simple to prepare and convenient to store, transport and use. The invention further provides a preparation method of the blended material and concrete prepared through the blended material.

Description

technical field [0001] The invention relates to the field of building materials, in particular to an admixture, a preparation method thereof and concrete prepared therefrom. Background technique [0002] At present, the admixtures used in the building materials industry are mainly industrial waste residues such as slag and fly ash. In recent years, the rapid development of my country's infrastructure has led to the rapid expansion of the cement and concrete industry, resulting in admixtures such as fly ash and slag that were originally used as waste slag becoming very scarce. Among them, the excellent performance of blast furnace slag has caused its price to continue to rise , At one point even exceeded the price of clinker. It can be seen that the development of new varieties of admixtures has become an urgent task in the research of the construction industry. [0003] Basalt (basalt) is a basic volcanic rock with a dense structure and a heavier specific gravity than ordin...

AI Technical Summary

Problems solved by technology

This technical solution has different requirements for the fine powder standards of basalt, slag, and limestone, so the manufacturing process is more complicated, and auxiliary components such as activators need to be added in the process of preparing concrete, which also makes the process of preparing concrete more cumbersome.