Refractory Mortar Types and Construction Practice
There are two types of refractory mortar conforming to ASTM C 199 and permitted by code: 1. Hydraulicsetting Mortar. It is also called nonwatersoluble refractory mortar and considered the best available refractory mortar. Hydraulicsetting mortar is a mixer of aggregate and binder and withstand temperature of 1499C for a minimum of 6 hours.