Article ID Journal Published Year Pages File Type
258760 Construction and Building Materials 2012 8 Pages PDF
Abstract

Mechanisms behind explosive spalling of high-strength concrete during a heating test were investigated on the basis of acoustic emission (AE) measurements of wet and air-dried specimens. The relation between the measured values of the internal temperature and vapour pressure and AE events produced by micro-cracking were investigated. It was found that AE events were indeed indicative of the state of the explosive failure process. Furthermore, b-value analysis was successfully applied to clarify the fracture process, regardless of the moisture content of the specimens.

► This study used the AE method for detecting the explosive spalling process in HSC. ► It was found that AE events were indeed indicative of the state of the explosive failure process. ► b-Value analysis was successfully applied to clarify the fracture process.

Related Topics
Physical Sciences and Engineering Engineering Civil and Structural Engineering
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