Perlite ore is crisp and light, it can expand rapidly under heating conditions, and it has the characteristics of sound insulation, heat insulation, high temperature resistance, strong absorption, small capacity, stable chemical properties and acid and alkali resistance, so it is widely used. Perlite expansion furnace is specially used to expand the perlite ore.
At present, expanded perlite is used in the construction industry, mainly using its characteristics of light bulk density, sound insulation, thermal insulation, a large number of concrete and mortar aggregate. The sound-absorbing performance of general perlite concrete is about 20 times stronger than that of ordinary concrete. The bulk density of perlite is only 1/10-1/15 of sand, so mortar prepared with expanded perlite is about 60% lighter than mortar.
Water treatment: as a filter aid, filter and decontamination materials, used for water, beverage, liquid processing and treatment.
Protective materials: as heat insulation, heat preservation, radiation protection, waterproof, moisture-proof, vapor-proof, sound-absorbing protective materials for thermal furnaces and pipes;
Filling material: used in rubber, paint, enamel, plastic industry.
Perlite is used in agriculture as fertilizer retention agent, soil ameliorator, soil hardening regulation, crop lodging prevention, fertilizer efficiency and fertility control, and as a thinner and carrier of pesticides and herbicides. The application of perlite in solution culture of fruits, vegetables and flowers is expanding and is a growth area for perlite.