We can judge the quality of building sand from three aspects: 1, whether it is uniform and non-sticky; 2. Whether it is clean and free of impurities; 3, whether it meets the national standards; If these three standards can be met, the sand with better quality can meet the production requirements of various industries.

The production effect of machine-made sand is 1, and its firmness.

Compared with natural river sand, machine-made sand is slightly less firm, but it reaches the index of building standards and has no problem in concrete. Generally speaking, it is enough to control the stone powder content, lime-sand ratio and sand crushing index of concrete.

2. Grain quality

The particle shape of machine-made sand is irregular arc, which makes it have stronger cohesive force, greater compressive strength and longer service life when bonded with concrete structure.

3. Mixing effect with other raw materials such as concrete

According to the experiment of concrete, there is not much difference between using machine-made sand and pure natural sand. On the premise of the same slump, the water demand of machine-made sand is slightly greater than that of natural river sand.

To sum up, the machine-made sand produced by the sand making machine completely meets the standards of building sand. Machine-made sand is the best substitute for natural river sand, which can fill the shortage of building sand resources and is worth popularizing and applying.