Macrostructural Particulars of Mullite-Corundum Heat-Insulating Materials

Performance of Heat-Insulating Materials Doped with Basalt Fibres for Use in Mines

“…Heat-insulating materials refer to raw materials characterised by favourable thermal insulation performance, low material density, and suitability for application as spraying and support materials underground, aiming at high-temperature hazards in deep mines [ 2 ]. In many deep mines in South Africa, engineers have applied organic heat-insulating materials (e.g., polyethylene foam, polyurethane, and polyurethane foam) to control high-temperature hazards [ 3 ]. These materials can be used as heat-insulating materials on account of their low thermal conductivity; however, in the special working environment of high-temperature deep mine roadways, organic materials are easily burned and prone to emitting poisonous and harmful gases which would threaten the safety of workers should a mine fire occur underground.…”