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Study of the microstructure and Frost Behavior of HCP by Measuring the Dynamic Modulus of Elasticity

Published online by Cambridge University Press:  25 February 2011

M. J. Setzer
M. J. Setzer*
Affiliation:
Technical University of Munich, FRG.
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Abstract

Hardened cement paste can be regarded as a highly dispersed system of solid particles, air voids and water filled pores ranging in size from a submicroscopic to a macroscopic scale. Using a statistical model, the elastic moduli of solid particles, air voids and pore water can be combined appropriately to find a correlation between the modulus of hardened cement paste and the moduli, as well as respective volume fractions, of its constituents. Ice formation and the addition of aggregates in a mortar can easily be taken into account. On this basis the measurement of the dynamic elastic modulus of hardened cement paste and mortar at different temperatures and its evaluation provides much interesting data. The interaction of particles and pores is better understood. The ice formation can be studied. Since the freezing temperature of pore water is lowered in small gel pores, the pore size distribution can be calculated. Frost damage is observed directly. Therefore, this method is a valuable tool to improve the Munich model of hardened cement paste.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 85: Symposium M – Microstructural Development During Hydration of Cement , 1986 , 307
Copyright
Copyright © Materials Research Society 1987

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References

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