Development Length of GFRP Reinforcement in Concrete Bridge Decks

Hanus, Joe; Shield, Carol K.; French, Catherine E. W.; University of Minnesota, Duluth. Department of Civil Engineering

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Development Length of GFRP Reinforcement in Concrete Bridge Decks

2000-07-01
By Hanus, Joe ; Shield, Carol K. ; French, Catherine E. W.

[PDF-4.13 MB]

English

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Creators:

Hanus, Joe ; Shield, Carol K. ; French, Catherine E. W.

Hanus, Joe ; Shield, Carol K. ; French, Catherine E. W. Less -
Corporate Creators:

University of Minnesota, Duluth. Department of Civil Engineering
Corporate Contributors:

Minnesota. Dept. of Transportation
Subject/TRT Terms:

[+]

Alligator Cracking Bonding Bridge Decks Composite Materials Composite Structures Corrosion Resistance Cracking(Fracturing) Durability Fiber Reinforced Materials Fiber Reinforcements Glass-fiber-reinforced- Pol Loads(Force) Mechanical Properties Polymers Reinforced Concrete Reinforced Concrete Bridges Reinforcing Bars Road Materials
Publication/ Report Number:

MN/RC - 2000-26
Resource Type:

Tech Report
Geographical Coverage:

United States ; Minnesota

United States ; Minnesota Less -
Edition:

Final Report 1997-2000
Corporate Publisher:

Minnesota. Dept. of Transportation
Abstract:

This report summarizes an experimental program that investigated the development length and variability in bond of glass-fiber-reinforced-polymer (GFRP) reinforcement in concrete. The variables in the study were manufacturer (Marshall Industries Composites, Inc. [M1] and Corrosion Proof Products/Hughes Brothers [M2], bar size (No. 5 and 6), cover (2 and 3 bar diameters), and embedment length (10 through 47 inc.). Eighty-four inverted half-beam bond specimens were tested while monitoring load, loaded-end slip, free-end slip, cracking, and acoustic emissions on the embedded bar and concrete. Neither bar was recommended for immediate use as a reinforcement in bridge decks. The M1 rebar exhibited cracking and splitting along the outer coating of the bar, which damaged bar deformations. Additionally, these bars exhibited larger COVs for bar failures with average ultimate loads below the reported manufacturer’s value. The M2 rebar exhibited a smaller COV for tensile test bar failures and a similar ultimate load average when compared to the manufacturer’s reported strength. However, both GFRP rebar had 47.0 in. embedment length bond tests, which exhibited bar failures with ultimate loads less than the tensile test average minus two standard deviations.
Format:

PDF
Funding:

c) 74708 wo) 25
Collection(s):

US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:b5d6cd7f9ce8cc5138298cbb44c20d0813bf944f75ef4df14a4af037f53ab0cc
Download URL:

https://rosap.ntl.bts.gov/view/dot/40818/dot_40818_DS1.pdf
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Development Length of GFRP Reinforcement in Concrete Bridge Decks

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