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MRS Online Proceedings Library (OPL) MRS Online Proceedings Library (OPL)

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An Experimental Observation Related To The Pore Space Between Particles Of Cement In Pastes At Early Ages

Published online by Cambridge University Press:  22 February 2011

Hamlin M. Jennings
Hamlin M. Jennings
Affiliation:
Civil Engineering, Materials Science and Engineering, Northwestern University, Evanston, Ill. 60208
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Extract

Cement paste of water:cement ratios less than about 0.3 usually are not workable, but workability can be maintained at these lower water:cement ratios by using superplasticizers. A typical explanation [1] of the mechanism behind the effectiveness of superplasticizers is that they adsorb on the surface of cement particles and adjust the surface charge so that the particles become deflocculated. The individual particles flow more easily than larger flocs.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 137: Symposium P – Pore Structure and Permeability of Cementitious Materials , 1988 , 55
Copyright
Copyright © Materials Research Society 1989

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References

1. Mindess, S. and Young, J.F., Concrete, Prentice-Hall, New Jersey (1981).Google Scholar
2. Dalgleish, B.J., Pratt, P.L. and Toulson, E., J. Mater. Sci., 17, (1982) 2199.CrossRefGoogle Scholar
3. Diamond, S., personal communication (1985).Google Scholar

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