Abstract

This study compares the bond strength of reinforcing steel in high-volume fly ash concrete (HVFAC) mixes. Three mixes with 0% (conventional concrete), 50%, and 70% replacement of Portland cement with a Class C fly ash investigated in this study. Three beams (simply supported four-point loading condition) as well as three pull-out specimens (based on RILEM recommendations) were tested for each mix. Test results evaluated based on different codes as well as a bond database of conventional concrete specimens. These comparisons indicate that with increasing replacement level of fly ash in concrete the bond strength of reinforcing steel in concrete increases. Results of this study show that the increase in basic mechanical properties (splitting tensile strength, flexural strength, and fracture energy) for the HVFAC parallels the increase in full-scale bond behavior and can be used as a predictor in mixes containing fly ash.

Department(s)

Civil, Architectural and Environmental Engineering

Comments

Missouri Department of Transportation, Grant None

Keywords and Phrases

Bond strength; Conventional concrete; Experimental study; High-volume fly ash concrete

International Standard Serial Number (ISSN)

0959-6526

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2024 Elsevier, All rights reserved.

Publication Date

01 Jan 2015

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