Title: Creep, Shrinkage, and Modulus of Elasticity of High-Performance Concrete

Author(s): Xiaoming Sharon Huo, Nabil Al-Omaishi, and Maher K. Tadros

Publication: Materials Journal

Volume: 98

Issue: 6

Appears on pages(s): 440-449

Keywords: creep; high-performance concrete; modulus of elasticity; shrinkage.

DOI: 10.14359/10842

Date: 11/1/2001

Abstract:
The material properties of high-performance concrete (HPC) directly affect the design and construction of prestressed HPC bridge girders and their cast-in-place deck slabs. In this research, experiments on material properties such as creep, shrinkage, and modulus of elasticity of three HPC mixtures with local materials from Nebraska were conducted and continued more than 2 years. The test results obtained from this research showed that the current ACI equations for shrinkage, creep, and modulus of elasticity of concrete do not accurately predict these material properties for HPC. Revised formulas for shrinkage strain and creep coefficient, which can be used for both conventional concrete and HPC, are proposed in this paper. Through this study, it was also indicated that it would be desirable to determine experimentally the shrinkage strain, creep coefficient, and modulus of elasticity using the locally available aggregates for the specified HPC mixture proportions.