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Prediction of Elastic Moduli Development of Cement Mortars Using Early Age Measurements
Date
2015-01-01
Author
Deniz, Saygin
Erdoğan, Sinan Turhan
Metadata
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This work is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
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This paper presents an investigation of the time development of dynamic and static elastic moduli of eight mortars made using CEM I cements with contrasting properties. Mixing and the preparation of dynamic testing prism specimens conformed to European standards. A nonstandard specimen and bending test setup was devised for measuring the development of a static Young's modulus. It was determined that dynamic Young's moduli determined using an ultrasonic pulse velocity test are often, but not always, greater than those determined using a resonant frequency test. The ratio of a static Young's modulus to a dynamic Young's modulus for a particular cement mortar increased nearly linearly with increasing static modulus after 3 days, and this increase can be predicted using the measured 3-day static modulus. In addition, methods for predicting the increase in the static and dynamic modulus and decrease in Poisson's ratio of mortars, from age 3 to 56 days, using measured 3-day elastic moduli, are presented. Predicted 56-day values of static Young's modulus, dynamic modulus, the ratio of these, and Poisson's ratio for the eight different mortars were within 5% of the measured values. The observed relations among different elastic properties may be useful for verification of prediction models. (C) 2014 American Society of Civil Engineers.
Subject Keywords
General Materials Science
,
Mechanics of Materials
,
Civil and Structural Engineering
,
Building and Construction
URI
https://hdl.handle.net/11511/36544
Journal
JOURNAL OF MATERIALS IN CIVIL ENGINEERING
DOI
https://doi.org/10.1061/(asce)mt.1943-5533.0001025
Collections
Department of Civil Engineering, Article