Investigation on spalling resistance of ultra-high-strength concrete under rapid heating and rapid cooling

摘要

Received 29 December 2015 Effects of the fiber type, dosage and length on the explosive spalling of ultra-high-strength Received in revised form 5 April 2016 concrete under rapid heating and rapid cooling were experimentally investigated. The Accepted 16 April 2016 mechanism of spalling resistance was examined by comprehensive thermal analysis, X-ray Available online 26 April 2016 diffraction analysis, scanning electron microscopy and mercury porosimetry. The burst SSS time is extended but the spalling is unaffected by the addition of steel fiber. The spalling.