Abstract

The following paper presents the results of an experimental investigation of the shear strength of full-scale reinforced concrete beams constructed with both high-volume fly ash concrete (HVFAC)-concrete with at least 50% of the cement replaced with fly ash-and conventional concrete (CC). This study includes two HVFAC mixes and one CC mix. The two HVFAC mixes are identical except for the amount of Class C fly ash replacement of cement, with one mix replacing 50% of the cement with fly ash and the other replacing 70 %. The test matrix included 18 beams-six for each concrete type-with three different longitudinal reinforcement ratios. The test results were compared to the shear provisions of both U.S. and international design codes, including the design provisions from Australia, Canada, Europe, and Japan. Furthermore, the shear strengths of the beams were evaluated based on fracture mechanics approaches, modified compression field theory (MCFT), and a shear database of CC specimens. Results of this study show that the HVFAC mixes possess comparable shear strength with the CC.

Department(s)

Civil, Architectural and Environmental Engineering

Publication Status

Available Access

Comments

Missouri University of Science and Technology, Grant None

Keywords and Phrases

experimental study; high-volume fly ash concrete; shear strength

International Standard Serial Number (ISSN)

2165-3984; 2379-1357

Document Type

Article - Journal

Document Version

Final Version

File Type

text

Language(s)

English

Rights

© 2024 ASTM International, All rights reserved.

Publication Date

01 Jan 2013

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