Machine-made sand wet-mixed mortar and preparation method thereof

Abstract

The invention relates to machine-made sand wet-mixed mortar and a preparation method thereof, and belongs to the technical field of building materials. According to the invention, the influence of each technical index on the construction performance and the mechanical property of the mortar is comprehensively considered; wherein the nickel slag and the lead-zinc slag are added into the mortar, andthe components of the mortar are optimized, so that the mortar is ensured to have excellent water retention performance, acid resistance and plastering construction performance, excellent mechanicalproperty and durability and ideal comprehensive performance; after being put into the market in the later period, the product has good market prospects in the aspects of product cost, stable performance, convenient construction and the like.

Description

[0001] field of invention [0002] The invention relates to a machine-made sand wet-mixed mortar and a preparation method thereof, belonging to the technical field of building materials. Background technique [0003] With the vigorous development of civil engineering construction and the emphasis on engineering quality, the demand for sand in the construction market is increasing, and the quality requirements are also getting higher and higher, while qualified natural sand resources are becoming less and less. In recent years, with the shortage of resources and the increasing intensity of environmental protection, the price of natural sand has risen a lot. In some areas, there have been phenomena such as over-exploitation, destruction of river channels, and illegal mining, which have caused great damage to the environment. At the same time, it has also caused There have been many engineering accidents. [0004] Machine-made sand is "rock particles with a particle size of less...

AI Technical Summary

Problems solved by technology

However, after such treatment, not only the stone powder particles are removed, but also particles containing 0.15mm, 0.3mm, 0.6mm or even larger particles are removed, which seriously damages the gradation distribution of the machine-made sand, which is not conducive to reaching the maximum density of the aggregate. , and this process also wastes precious mineral resources and water resources, and the removed stone powder accumulates in large quantities, temporarily uses fields, affects rivers, etc., and has a serious impact on the environment

On the other hand, due to the rough particle surface of machine-made sand, sharp edges and corners, and poor gradation, people misunderstand the application of machine-made sand, thinking that "the quality of machine-made sand is not as good as natural sand", even in some large-scale projects. The use of machine-made sand is prohibited, which seriously restricts the application and promotion of machine-made sand