Prediction of Early Age Normal Concrete Compressive Strength Based on Dynamic Shear Modulus Measurements
Publication: Journal of Materials in Civil Engineering
Volume 25, Issue 1
Abstract
In this research, the relationship between the compressive strength, , and the dynamic shear modulus, , of normal concrete at an early age was studied. To investigate the correlation between and at an early age, different types of mixtures, including mortar and concrete, were prepared, and the corresponding and values were measured every 12 h after initial mixing up to 72 h after casting. The influences of hydration age, water-to-cement () ratio, curing temperature, aggregate volume content, and maximum aggregate size on the relationship of concrete were studied. The relationship was then mathematically modeled by using multivariable power laws. The developed model is reasonably accurate to predict the early age compressive strength of concrete with variations in hydration age, aggregate content, and sizes. This type of model can be used directly in the field for the estimation of concrete strength when nondestructive testing (NDT) techniques are employed.
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Acknowledgments
The authors acknowledge financial support from the National Science Foundation (Grant No. CMMI-0654263) and the University of Louisville (IRIG program).
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Information & Authors
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Published In
Journal of Materials in Civil Engineering
Volume 25 • Issue 1 • January 2013
Pages: 30 - 38
Copyright
© 2013 American Society of Civil Engineers.
History
Received: Jun 26, 2011
Accepted: Mar 23, 2012
Published online: Mar 27, 2012
Published in print: Jan 1, 2013
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