Powdered crystalline silica is a safe and cheaper alternative to river sand.
The construction industry, the land of rivers, is witnessing a fast widening gap in demand and supply of river sand. Natural sand has become a costly, precious commodity. With construction activities gaining rapid pace in all over the word, this river resource has been exploited excessively.
Sand is composed of a variety of materials dependent upon where the sand is located. Beach sand is comprised of quartz, silica, rock fragments, and small bits of seashell. Alternatively, sand found in deserts is composed almost entirely of quartz and small bits of rock such as sandstone. Industrial sand must contain a high percentage of silica; at least 95% purity is the ideal for construction applications.