Journal Published Online: 05 March 2019
Volume 8, Issue 3

Mechanical Properties of Carbon-Fiber–Reinforced Concrete

CODEN: ACEMF9

Abstract

Fibers are used to improve the properties of concrete. This article investigates the mechanical properties of chopped carbon-fiber–reinforced concrete (CFRC). The properties examined include workability, compressive strength, splitting tensile strength, and flexural strength. The fibers were added at the volume fractions of 0.5, 1.0, 1.5, and 2.0 %. Adding carbon fiber to the concrete decreased the workability of concrete. The compressive strength of CFRC increases when more carbon fiber is added to the mixture, up to a certain percentage, after which increasing fiber content becomes unbeneficial. This optimum fiber content is found to be 1 %, with a strength effectiveness of 13.65 %. The splitting tensile strength of CFRC improved linearly when more fiber was added to the mixture, and the strength effectiveness ranged from 18.37 to 132.6 %. The flexural strength of CFRC improved linearly with increased fiber content, and the strength effectiveness ranged from 3.26 to 13.82 %. Relationships for compressive strength, splitting tensile strength, and flexural strength of CFRC are introduced and explained.

Author Information

Ghanem, Sahar Y.
Department of Engineering and Technology Management, Morehead State University, Morehead, KY, USA
Bowling, Jonathan
Department of Engineering and Technology Management, Morehead State University, Morehead, KY, USA
Pages: 11
Price: $25.00
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Details
Stock #: ACEM20180089
ISSN: 2379-1357
DOI: 10.1520/ACEM20180089