The Relationship between Mechanical Properties and Shrinkage of the Concretes Used in Florida

Abstract:

This paper investigated the mechanical strength and shrinkage properties of the concrete mixtures frequently used in Florida. The concrete mixtures were proportioned with three different types of coarse aggregates, such as Miami Oolite limestone, Georgia granite and Stalite lightweight aggregate, and two mineral additives, including fly ash and slag. And fourteen concrete mixtures were evaluated on their characteristics of compressive strength, elastic modulus and shrinkage for 91 days. The empirical relationship between the mechanical properties of concretes and shrinkage strain was analyzed mathematically. The results indicate that the compressive strength and elastic modulus of concrete are exponentially related the shrinkage strain of concrete. The finding from this study is agreeable with that by Troxell et al [5]. Also, the effectiveness of ACI 209 and CEB-FIP models on predicting the shrinkage behavior of concretes used frequently in Florida was evaluated. The result indicates that CEB-FIP model gives more reliable prediction than ACI 209 model does.

• Periodical: Applied Mechanics and Materials (Volumes 204-208)
• Pages: 3799-3804
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.204-208.3799
• Online since: October 2012
• Authors: Yan Jun Liu, Mang Tia
• Keywords: Compressive Strength, Concrete, Elastic Modulus, Empirical Relationship, Splitting Tensile Strength

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