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A platform for research: civil engineering, architecture and urbanism
Effect of fibre type and geometry on maximum pore pressures in fibre-reinforced high strength concrete at elevated temperatures
Abstract This paper presents results of an experimental and statistical study which investigates the effect of fibre type and geometry on the amount of maximum pore pressures measured at different depths in fibre-reinforced high strength concrete (HSC) exposed to elevated temperatures. Polypropylene, polyvinyl alcohol and steel fibres of varying lengths and diameters were used. Pore pressure measurements showed that addition of organic fibres regardless of the type significantly contributes to pore pressure reduction in heated HSC. Polypropylene fibres were more effective in mitigating maximum pore pressure development compared to polyvinyl alcohol fibres while steel fibres had a slightly low effect. Longer organic fibres of length 12mm with smaller diameters of 18μm showed better performance than shorter ones of length 6mm with larger diameters of 28 and 40μm. Based on experimental observations and using statistical analysis, a relationship to predict maximum pore pressures in heated concrete was developed.
Effect of fibre type and geometry on maximum pore pressures in fibre-reinforced high strength concrete at elevated temperatures
Abstract This paper presents results of an experimental and statistical study which investigates the effect of fibre type and geometry on the amount of maximum pore pressures measured at different depths in fibre-reinforced high strength concrete (HSC) exposed to elevated temperatures. Polypropylene, polyvinyl alcohol and steel fibres of varying lengths and diameters were used. Pore pressure measurements showed that addition of organic fibres regardless of the type significantly contributes to pore pressure reduction in heated HSC. Polypropylene fibres were more effective in mitigating maximum pore pressure development compared to polyvinyl alcohol fibres while steel fibres had a slightly low effect. Longer organic fibres of length 12mm with smaller diameters of 18μm showed better performance than shorter ones of length 6mm with larger diameters of 28 and 40μm. Based on experimental observations and using statistical analysis, a relationship to predict maximum pore pressures in heated concrete was developed.
Effect of fibre type and geometry on maximum pore pressures in fibre-reinforced high strength concrete at elevated temperatures
Bangi, Mugume Rodgers (author) / Horiguchi, Takashi (author)
Cement and Concrete Research ; 42 ; 459-466
2011-11-19
8 pages
Article (Journal)
Electronic Resource
English
| British Library Online Contents | 2012
Pore pressure development in hybrid fibre-reinforced high strength concrete at elevated temperatures
| British Library Online Contents | 2011