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Physico-chemical characteristics of some polymer cement composites
Faculty
Science
Year:
2001
Type of Publication:
Article
Pages:
76-83
Authors:
Aiad, I, El-Didamony, H, Heikal, M, Shoaib, MM
DOI:
10.1016/S0254-0584(01)00346-7
Journal:
MATERIALS CHEMISTRY AND PHYSICS ELSEVIER SCIENCE SA
Volume:
71
Research Area:
Materials Science
ISSN
ISI:000169953800014
Keywords :
sulphate-resisting cement (SRC), setting time, electrical conductivity, polymer and gel/space ratio
Abstract:
The electrical conductivity of cement pastes can give an indication of the initial hydration of the cement pastes and early formation of products. In this study, sulphate-resisting cement (SRC) pastes were prepared with different doses of two synthesised admixtures, namely phenol formaldehyde sulphonate (PhFS) and melamine formaldehyde sulphonate (MFS). This work is aimed to evaluate the effect of PhFS and MFS on the hydration reaction of cement pastes during the first 24h by determining the initial, final setting times and the electrical conductivity changes, as well as the effect of these polymers on the hydration progressing up to 90 days by determining the chemically combined water content and gel/space ratio of each paste at different intervals of time (1, 3, 7, 28 and 90 days). (C) 2001 Elsevier Science B.V. All rights reserved.
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