At that time, the national standard had only the old standard of gray sand and the standard of sintered sands, and the sands made of sand making machine could only be tested by these two standards. In actual inspection, from appearance to quality, they meet or surpass the standard of the lime sand and the standard of fired sand at that time.According to the natural curing method similar to the cement component after the sand is formed, it is not necessary to build the kiln without burning, so the name of the "no burning sand" is spread.

As the traditional sintering sand requires a large amount of clay, some of them directly destroy the source of farmland. This not only destroys the integrity of land and resources in China, but also causes serious pollution to the air environment after burning coal in fired sand production. The 295 document issued by the Ministry of state construction, the State Economic and Trade Commission, the State Quality and Technical Supervision Bureau and the State Building Materials Bureau, issued in 1999, stipulates that the clay solid sands are banned in one hundred and sixty cities in China.This "blew the national wall reform" Prohibition of burning red, promoting the development of new wall materials horn.