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The Influence of Pore Structure on the Properties of Cement Paste: Initial Observations about Research-in-progress

Published online by Cambridge University Press:  22 February 2011

D. A. Lange ,
H. M. Jennings  and
S. P. Shah
D. A. Lange
Affiliation:
Department of Civil Engineering, Northwestern University, Evanston, IL 60208
H. M. Jennings
Affiliation:
Department of Civil Engineering, Northwestern University, Evanston, IL 60208
S. P. Shah
Affiliation:
Department of Civil Engineering, Northwestern University, Evanston, IL 60208
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Abstract

Initial observations of the influence of pore structure on material properties of cement paste are described. The total porosity is held constant and pore structure is altered by use of a superplasticizer. Corresponding changes in strength and fracture energy are observed. Changes in the cement paste pore structure are evaluated by analysis of images obtained by optical microscopy. The technique is a direct method of measurement that avoids assumptions about pore geometry.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 137: Symposium P – Pore Structure and Permeability of Cementitious Materials , 1988 , 47
Copyright
Copyright © Materials Research Society 1989

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References

1. Jenq, Y.S. and Shah, S.P.,“Two Parameter Fracture Model for Concrete,” J. of Eng. Mech., ASCE, 111(10), 1227–1241, October, 1985.CrossRefGoogle Scholar
2. Röβler, M. and Odler, I., “Investigations on the relationship between porosity, structure and strength of hydrated portland cement pastes, I. Effect of porosity,” Cement and Concrete Research, 15(2), 321–330, 1985.CrossRefGoogle Scholar