Title:
In-Place Modulus of Elasticity for High-Performance Concrete Bridge
Author(s):
Erin A. Hughes, Zhiyoung Liang, Rola L. Idriss, and Craig M. Newtson
Publication:
Materials Journal
Volume:
102
Issue:
6
Appears on pages(s):
454-458
Keywords:
coefficient of thermal expansion; high-performance concrete; prestressed concrete; Young’s modulus
DOI:
10.14359/14809
Date:
11/1/2005
Abstract:
This study presents an evaluation of Young’s modulus of elasticity Ec for a new, prestressed, high-performance concrete, spread box-girder bridge. The modulus of elasticity was measured using sample concrete cylinders obtained during concrete placement of the study bridge girders as well as through embedded fiber-optic sensors that were placed inside the bridge girders. The measured modulus of elasticity was then compared with several well-known empirical equations used to predict Ec during the design process. The coefficient of thermal expansion, a, was also measured using the deformation sensors.