Splice Performance Evaluation of Enamel-Coated Rebar for Structural Safety

Chen, G.D.; Wu, C.L.; Missouri University of Science and Technology. Dept. of Civil, Architectural, and Environmental Engineering

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Splice Performance Evaluation of Enamel-Coated Rebar for Structural Safety

2014-07-04
By Chen, G.D. ; Wu, C.L.

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English

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Details:

Creators:

Chen, G.D. ; Wu, C.L.

Chen, G.D. ; Wu, C.L. Less -
Corporate Creators:

Missouri University of Science and Technology. Dept. of Civil, Architectural, and Environmental Engineering
Corporate Contributors:

United States. Dept. of Transportation. Research and Innovative Technology Administration
Subject/TRT Terms:

[+]

Bond Strength (Materials) Coatings Enamel-Coated Rebars Enamels Rebars Reinforced Concrete Reinforcing Bars Research Hub Splicing Structural Analysis
Publication/ Report Number:

MATC-MS&T: 194 ; 25-1121-0003-194

MATC-MS&T: 194 ; 25-1121-0003-194 Less -
Resource Type:

Tech Report
Geographical Coverage:

United States
Corporate Publisher:

Mid-America Transportation Center
Abstract:

This report summarizes the findings and results from an experimental study of vitreous enamel coating effects on the bond strength between deformed rebar and normal strength concrete. A total of 24 beam splice specimens were tested under four-point loading with four parameters investigated: bar size, lap splice length, coating, and confinement conditions. As the splice length increases, the ratio of bond strength between coated rebar and black rebar first increases from 1.0 to a maximum value of 1.44, and then decreases to 1.0. The maximum bond strength ratio corresponds to the near initial yielding of coated rebar. On the average, enamel coating can increase the bond strength of steel rebar in concrete by approximately 15%. A coating factor of 0.85 is thus recommended to take into account the enamel coating effect in lap splice designs, according to ACI and AASHTO bond strength equations.
Format:

PDF
Collection(s):

University Transportation Centers US Transportation Collection
Main Document Checksum:

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urn:sha256:19c58117a20dfd9139d95eb0ff2e6ac827563841521499f9d1c69d5fd96e3007
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https://rosap.ntl.bts.gov/view/dot/28290/dot_28290_DS1.pdf
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Splice Performance Evaluation of Enamel-Coated Rebar for Structural Safety

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