کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
258760 503622 2012 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Study of mechanisms of explosive spalling in high-strength concrete at high temperatures using acoustic emission
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
پیش نمایش صفحه اول مقاله
Study of mechanisms of explosive spalling in high-strength concrete at high temperatures using acoustic emission
چکیده انگلیسی

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.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Construction and Building Materials - Volume 37, December 2012, Pages 621–628
نویسندگان
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