The crushed sand is used in aerated concrete producing. The gypsum, cement and other additives are added to sand for the strength of the mixture. Sand is crushed in the ball mills, the type of grinding is wet ball milling. The steel grinding balls 25-40 mm in diameter are in the mill. Each manufacturer has its own milling requirements. On average, these requirements tend to the 15-18% of the sieve residue (8 microns).
After grinding, the resulting mixture enters the hopper, in which it is constantly mixed using a “mixer”. The resulting solution is stirred until the homogeneous wet concrete is obtained. After that, foam is added to the industrial “mixer” where the solution was mixed. The concrete solution mixed with foam further is poured into molds. The foam concrete is conditioned for 4 hours after pouring. During this time, the process of initial capture occurs. Then the blocks are loaded onto pallets and transported for further drying.
Energosteel company produces high-quality steel grinding balls optimally suiting for grinding quartzite (sand). To date, our customers include more than 25 companies that specialize in the production of aerated concrete blocks both in Ukraine and in the near abroad.