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Electrical conductivity of granulated slag cement kiln dust-silica fume pastes at different porosities
Blended cement pastes containing granulated slag, cement kiln dust (CKD), made with and without silica fume, were prepared using the initial water-to-solid (w/s) ratios of 0.30, 0.40, and 0.50 to produce low-normal and high-porosity pastes, respectively. The variations of electrical conductivity with hydration time were measured at 30 degree C and 50 degree C for each paste during setting and hardening processes after gauging with deionized water. The results of this study demonstrate that the electrical response characteristics of setting pastes can be used as an effective means of studying the progress of blended cement hydration and also for monitoring structural changes occurring within the paste, as well as, reflecting the hydraulic reactivity of granulated slag and silica fume as pozzolanic constituents of the hardening pastes.
Electrical conductivity of granulated slag cement kiln dust-silica fume pastes at different porosities
Blended cement pastes containing granulated slag, cement kiln dust (CKD), made with and without silica fume, were prepared using the initial water-to-solid (w/s) ratios of 0.30, 0.40, and 0.50 to produce low-normal and high-porosity pastes, respectively. The variations of electrical conductivity with hydration time were measured at 30 degree C and 50 degree C for each paste during setting and hardening processes after gauging with deionized water. The results of this study demonstrate that the electrical response characteristics of setting pastes can be used as an effective means of studying the progress of blended cement hydration and also for monitoring structural changes occurring within the paste, as well as, reflecting the hydraulic reactivity of granulated slag and silica fume as pozzolanic constituents of the hardening pastes.
Electrical conductivity of granulated slag cement kiln dust-silica fume pastes at different porosities
Salem, T.M. (author) / Ragai, S.M. (author)
Cement and Concrete Research ; 31 ; 781-787
2001
7 Seiten, 14 Quellen
Article (Journal)
English
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