A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Permeability of high-performance concrete subjected to elevated temperature (600°C)
AbstractPermeability is one of the most important parameters to quantify the durability of high-performance concrete. Permeability is closely related with the spalling phenomenon in concrete at elevated temperature. This parameter is commonly measured on non-thermally damaged specimens. This paper presents the results of an experimental investigation carried out to study the effect of elevated temperature on the permeability of high-performance concrete. For this purpose, three types of concrete mixtures were prepared: (i) control high-performance concrete; (ii) high-performance concrete incorporating polypropylene fibres; and (iii) high-performance concrete made with lightweight aggregates. A heating–cooling cycle was applied on 160×320mm, 110×220mm, and 150×300mm cylindrical specimens. The maximum test temperature was kept as either 200 or 600°C. After the thermal treatment, 65mm thick slices were cut from each cylinder and dried prior to being subjected to permeability test. Results of thermal gradients in the concrete specimens during the heating–cooling cycles, compressive strength, and splitting tensile strength of concrete mixtures are also presented here. A relationship between the thermal damage indicators and permeability is presented.
Permeability of high-performance concrete subjected to elevated temperature (600°C)
AbstractPermeability is one of the most important parameters to quantify the durability of high-performance concrete. Permeability is closely related with the spalling phenomenon in concrete at elevated temperature. This parameter is commonly measured on non-thermally damaged specimens. This paper presents the results of an experimental investigation carried out to study the effect of elevated temperature on the permeability of high-performance concrete. For this purpose, three types of concrete mixtures were prepared: (i) control high-performance concrete; (ii) high-performance concrete incorporating polypropylene fibres; and (iii) high-performance concrete made with lightweight aggregates. A heating–cooling cycle was applied on 160×320mm, 110×220mm, and 150×300mm cylindrical specimens. The maximum test temperature was kept as either 200 or 600°C. After the thermal treatment, 65mm thick slices were cut from each cylinder and dried prior to being subjected to permeability test. Results of thermal gradients in the concrete specimens during the heating–cooling cycles, compressive strength, and splitting tensile strength of concrete mixtures are also presented here. A relationship between the thermal damage indicators and permeability is presented.
Permeability of high-performance concrete subjected to elevated temperature (600°C)
Noumowe, Albert N. (author) / Siddique, Rafat (author) / Debicki, G. (author)
Construction and Building Materials ; 23 ; 1855-1861
2008-09-28
7 pages
Article (Journal)
Electronic Resource
English
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