| abstract |
(57) [Summary] [Configuration] A silanol solution having a siloxane skeleton, A refractory material obtained by curing and molding a mixture of at least a volcanic ash mixture material, montmorillonite and mineral fibers by heating. The silanol solution is obtained by mixing metallic silicon, sodium fluoride (or hydrogen fluoride), sodium hydroxide, and water, and generating an exothermic or heated reaction. [Effect] It has excellent fire resistance, heat resistance, and heat insulating properties, is lightweight, has good workability, and can be manufactured at low cost. |