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Prediction of spalling in fibre-reinforced high strength concrete at elevated temperatures
Abstract This experimental study investigates two spalling test methods, for small scale specimens made of fibre-reinforced high strength concrete exposed to elevated temperatures, namely a blowtorch test and a furnace test. The study also aims at developing a relationship between relative maximum pore pressure and spalling, in order to determine a threshold relative maximum pressure for predicting spalling in heated concrete. The test results showed that the blowtorch test was a more effective and economical test method for carrying out spalling tests in small, unloaded and unrestrained specimens. Since such small specimens almost always do not spall during furnace tests, a blowtorch spalling test can help to provide relevant and useful data for mitigation of spalling in real scale structural elements. Also, with a blowtorch spalling test, a clear relationship between relative maximum pore pressures and spalling in heated concrete was observed, and a threshold relative maximum pore pressure above which spalling is likely to occur was suggested.
Prediction of spalling in fibre-reinforced high strength concrete at elevated temperatures
Abstract This experimental study investigates two spalling test methods, for small scale specimens made of fibre-reinforced high strength concrete exposed to elevated temperatures, namely a blowtorch test and a furnace test. The study also aims at developing a relationship between relative maximum pore pressure and spalling, in order to determine a threshold relative maximum pressure for predicting spalling in heated concrete. The test results showed that the blowtorch test was a more effective and economical test method for carrying out spalling tests in small, unloaded and unrestrained specimens. Since such small specimens almost always do not spall during furnace tests, a blowtorch spalling test can help to provide relevant and useful data for mitigation of spalling in real scale structural elements. Also, with a blowtorch spalling test, a clear relationship between relative maximum pore pressures and spalling in heated concrete was observed, and a threshold relative maximum pore pressure above which spalling is likely to occur was suggested.
Prediction of spalling in fibre-reinforced high strength concrete at elevated temperatures
Mugume, Rodgers Bangi (Autor:in) / Horiguchi, Takashi (Autor:in)
2013
Aufsatz (Zeitschrift)
Englisch
Prediction of spalling in fibre-reinforced high strength concrete at elevated temperatures
Springer Verlag | 2013
|Prediction of spalling in fibre-reinforced high strength concrete at elevated temperatures
British Library Online Contents | 2014
|Prediction of spalling in fibre-reinforced high strength concrete at elevated temperatures
Online Contents | 2013
|Prediction of spalling in fibre-reinforced high strength concrete at elevated temperatures
Online Contents | 2014
|Spalling of High Strength Concrete at Elevated Temperatures
British Library Online Contents | 1997
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