With the continuous development of highway and railway engineering construction in China, qualified natural sand that can be mined is becoming increasingly scarce, and the use of machine-made sand has become an inevitable trend in the development of engineering construction.
As the most basic raw material for engineering construction, machine-made sand is more in line with national low-carbon and environmental protection requirements and has low cost compared to river sand.
It has a wide application prospect.
However, the content of machine-made sand stone powder is significantly higher than that of river sand.
The stone powder content has a great impact on the performance of concrete mixtures and the quality of engineering entities.
Controlling the stone powder content within a certain range plays a filling role in concrete and is conducive to concrete quality control.
However, if the stone powder content exceeds the limit, it will have a counterproductive effect.
Therefore, when using machine-made sand to mix concrete, it is very important to find the optimal stone powder content for on-site concrete quality and cost control methods.
.