Hongfa has 80 AAC plant (Autoclaved aerated concrete) for domestic and abroad market. Main raw materials of AAC are siliceous material (sand, fly ash and Silicon tailings) and Calcium materials (lime and cement) mixed with foaming agent (aluminum powder). It is the product of light porous silicate through the following processes: batching, mixing,
https://youtu.be/c6gf2JMstfQ Advantages of QT6-12F block machine Feeding System QT6-12F block machine is built under steel frame, it owns a new feeding system that gives material exactly and average and assures the products having a high density. So the products have high density. This machine produces blocks, pavers, curbs, and draining pavers.