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The effect of silica fume on strength and permeability of RCC mixes with low and medium paste content

The effect of silica fume on strength and permeability of RCC mixes with low and medium paste content

Bagheri, A. and Mahmoodian, M. (2003) The effect of silica fume on strength and permeability of RCC mixes with low and medium paste content. Journal of School of Engineering, 15 (1). pp. 65-74. ISSN 1028-3080

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Abstract

Non production of PFA and the non uniform quality of natural pozzolans is a potential obstical in production of concrete mixes for RCC dam construction in Iran. Another option that can be considered is utilization of a super pozzolan called silica fume, which is available in the country as a byproduct of ferrosilicon industries. A laboratory investigation to evaluate the effect of incorporating various dosages of silica fume on enhancing the quality of RCC mixes of low to medium pastes (80 and 110 Kg/m3 cementatious materials contents), was carried out. The results show that incorporation of silica fume causes significant improvements in compressive and tensile strength of RCC mixes. The improvements observed in strength, Ranged from 25 to 60 percent for 5 to 15 percent cement replacement by silica fume. Permeability tests carried out also show that, a significant reduction in permeability is achieved by utilization of silica fume in RCC mixes.

Item Type: Article
Uncontrolled Keywords: roller compacted concrete, RCC, silica fume, RCC dams, compressive strength, tensile strength, permeability,
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TH Building construction
Pre-2014 Departments: School of Engineering
School of Engineering > Department of Civil Engineering
Related URLs:
Last Modified: 14 Oct 2016 09:27
Selected for GREAT 2016: None
Selected for GREAT 2017: None
Selected for GREAT 2018: None
URI: http://gala.gre.ac.uk/id/eprint/11434

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