Abrasion Resistance of Shotcreted Low Cement Castable at Elevated Temperatures

摘要

Refractory gunning is a very common method especially in construction and hot/cold repair applications. Conventional dry gunning has high application areas because of the easy installation and low labor cost, Shotcreting (concrete gunning, spray cast) methods have high potential to overcome low erosion resistance of conventional dry gunning methods. In this work, the physical, mechanical and abrasion/erosion properties of gunning materials produced by dry and wet gunning methods were investigated. The abrasion properties were investigated at high temperatures (25 - 800 - 1200 °C). The blast abrasion properties of shotcreted material have very low wear loss compared to conventional gunning methods.