MODULUS OF ELASTICITY OF TWO-STAGE CONCRETE
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Published:2002
H S Abdelgader, J A Górski, 2002. "MODULUS OF ELASTICITY OF TWO-STAGE CONCRETE", Challenges of Concrete Construction: Volume 6, Concrete for Extreme Conditions: Proceedings of the International Conference held at the University of Dundee, Scotland, UK on 9–11 September 2002, Ravindra K. Dhir, Michael J. McCarthy, Moray D. Newlands
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Two-stage concrete is made by forcing cement grout into the voids of a compacted mass of stone aggregate. The two-stage concrete differs from ordinary concrete in that it contains a higher proportion of stone aggregate and the aggregate stays in point-to-point contact as placed. Thus, the mechanical characteristics of the two-stage concrete in failure conditions are distinctly different from the ordinary concrete. Moreover, there is no background information for evaluating the two-stage concrete elastic modulus. This paper presents the results of some experimental tests of two types of stone aggregates and three different mix proportions of grout. Stress-strain relations in function of water-cement and cement-sand ratios are elaborated. A relationship between the initial tangent elastic modulus and the compressive strength of two-stage concrete is statistically derived.
INTRODUCTION
MATERIALS AND TEST PROCEDURES
STATISTICAL ANALYSIS OF TEST RESULTS
DISCUSSION OF RESULTS
CONCLUSIONS
ACKNOWLEDGEMENTS
REFERENCES
