Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Pore pressure development in hybrid fibre-reinforced high strength concrete at elevated temperatures
Abstract The present experimental work investigates the build-up of pore pressure at different depths of High Strength Concrete (HSC) and Hybrid-Fibre-Reinforced High Strength Concrete (HFRHSC) when exposed to different heating rates. First, the effect of the measurement technique on maximum pore pressures measured was evaluated. The pressure measurement technique which utilised a sintered metal and silicon oil was found to be the most effective technique for pore pressure measurement. Pore pressure measurements carried out showed that addition of polypropylene fibres is very effective in mitigation of spalling and build-up of pore pressure inside heated HSC. Addition of steel fibres plays some role in pore pressure reduction at relatively higher pressures in deeper regions of concrete during fast heating. Pore pressure development is highly influenced by the rate of heating with fast heating leading to higher pore pressures in the deeper regions of concrete compared to slow heating.
Pore pressure development in hybrid fibre-reinforced high strength concrete at elevated temperatures
Abstract The present experimental work investigates the build-up of pore pressure at different depths of High Strength Concrete (HSC) and Hybrid-Fibre-Reinforced High Strength Concrete (HFRHSC) when exposed to different heating rates. First, the effect of the measurement technique on maximum pore pressures measured was evaluated. The pressure measurement technique which utilised a sintered metal and silicon oil was found to be the most effective technique for pore pressure measurement. Pore pressure measurements carried out showed that addition of polypropylene fibres is very effective in mitigation of spalling and build-up of pore pressure inside heated HSC. Addition of steel fibres plays some role in pore pressure reduction at relatively higher pressures in deeper regions of concrete during fast heating. Pore pressure development is highly influenced by the rate of heating with fast heating leading to higher pore pressures in the deeper regions of concrete compared to slow heating.
Pore pressure development in hybrid fibre-reinforced high strength concrete at elevated temperatures
Bangi, Mugume Rodgers (Autor:in) / Horiguchi, Takashi (Autor:in)
Cement and Concrete Research ; 41 ; 1150-1156
06.07.2011
7 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Pore pressure development in hybrid fibre-reinforced high strength concrete at elevated temperatures
| British Library Online Contents | 2011
Pore pressure development in hybrid fibre-reinforced high strength concrete at elevated temperatures
| Online Contents | 2011
| Emerald Group Publishing | 2010