Rock wool in the manhole

Rock wool is a kind of mineral wool. It is made of natural basalt. It is melted at high temperature and then rotated or sprayed into fibers. After adding a small amount of binder and fireproofing agent, it forms a high-efficiency thermal insulation, sound insulation, fireproof, Corrosion-resistant construction materials. Rock wool has many applications, such as: thermal insulation: rock wool is an excellent thermal insulation material, which can effectively isolate the transfer of external heat or cold air and achieve the purpose of thermal insulation. It can be applied to the thermal insulation of roofs, walls, floors, etc. of buildings. Fireproof and heat insulation: rock wool has excellent fireproof performance, can effectively isolate flame and high temperature, and achieve the purpose of fireproof and heat insulation. Therefore, rock wool is often used for fire insulation of buildings, fire insulation of flues and chimneys. Sound absorption and noise reduction: Rock wool has excellent sound absorption and noise reduction effects, which can reduce environmental noise and improve the acoustic comfort in buildings. Corrosion resistance: Rock wool will not corrode or age due to long-term contact with air, moisture, acid and alkali and other substances. In short, rock wool is a multifunctional, efficient and environmentally friendly building material, widely used in construction, metallurgy, chemical industry and other fields.