Title:
Compressive Behavior of Ultra-High-Performance Fiber-Reinforced Concrete
Author(s):
Benjamin A. Graybeal
Publication:
Materials Journal
Volume:
104
Issue:
2
Appears on pages(s):
146-152
Keywords:
compressive strength; fiber-reinforced concrete; modulus of elasticity
DOI:
10.14359/18577
Date:
3/1/2007
Abstract:
An experimental program was conducted to determine the uniaxial compressive behaviors of an ultra-high performance fiber-reinforced concrete (UHPFRC). Cylinders were tested in compression and the results were analyzed to determine the strength, modulus of elasticity, strain capacity, and overall stress-strain behaviors of both untreated and steam-treated UHPFRC. The results show that this concrete exhibits exceptional compressive strength and enhanced stiffness. Predictor equations for the strength gain with time and the modulus of elasticity as a function of compression strength are presented. The linearity of the stress-strain response of this concrete is discussed and an equation for the ascending branch of the compressive stress-strain behavior is established.