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Magnesium sulfate attack on hardened blended cement pastes under different circumstances
This paper describes the sulfate resistance of some hardened blended Portland cement pastes. The blending materials used were silica fume (SF), slag, and calcium carbonate (CaCO3, CC over bar). The blended cement pastes were prepared by using W/S ratio of 0.3. The effects of immersion in 10% MgSO4 solution under different conditions (room temperature, 60 degree C, and drying-immersion cycles at 60 degree C) on the compressive strength of the various hardened blended cement pastes were studied. Slag and CC over bar improve the sulfate resistance of ordinary Portland cement (OPC) paste. Mass change of the different mixes immersed in sulfate solution at 60 degree C with drying-immersion cycles was determined. The drying-immersion cyclic process at 60 degree C accelerates sulfate attacks. This process can be considered an accelerated method to evaluate sulfate resistance of hardened cement pastes, mortars, and concretes.
Magnesium sulfate attack on hardened blended cement pastes under different circumstances
This paper describes the sulfate resistance of some hardened blended Portland cement pastes. The blending materials used were silica fume (SF), slag, and calcium carbonate (CaCO3, CC over bar). The blended cement pastes were prepared by using W/S ratio of 0.3. The effects of immersion in 10% MgSO4 solution under different conditions (room temperature, 60 degree C, and drying-immersion cycles at 60 degree C) on the compressive strength of the various hardened blended cement pastes were studied. Slag and CC over bar improve the sulfate resistance of ordinary Portland cement (OPC) paste. Mass change of the different mixes immersed in sulfate solution at 60 degree C with drying-immersion cycles was determined. The drying-immersion cyclic process at 60 degree C accelerates sulfate attacks. This process can be considered an accelerated method to evaluate sulfate resistance of hardened cement pastes, mortars, and concretes.
Magnesium sulfate attack on hardened blended cement pastes under different circumstances
Hekal, E.E. (author) / Kishar, E. (author) / Mostafa, H. (author)
Cement and Concrete Research ; 32 ; 1421-1427
2002
7 Seiten, 19 Quellen
Article (Journal)
English
Magnesium sulfate attack on hardened blended cement pastes under different circumstances
British Library Online Contents | 2002
|Magnesium sulfate attack on hardened blended cement pastes under different circumstances
Online Contents | 2002
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