Is desert sand useful? Zhihu, what's the use value of desert sand?

1. Because the sand in the desert is formed in a dry environment and the alkali content is too high, the sand used for building is usually coarse sand or medium sand, while the sand particles in the desert are too fine, so it is a big project to screen qualified sand.

2. Is desert sand useful? Desert sand is useful. It can be used as a building material because desert sand is an excellent building material. Scientists in China have developed a kind of permeable floor tile with sand, which can make rainwater 100% penetrate into the ground and store rainwater in rainy season. This method has played a great positive role in the arid desert.

3. More importantly, the transportation of sand from desert to city is long, the freight is expensive, and the overall cost is too high, resulting in low utilization value.