Experimental investigation of FRCM/concrete interfacial debonding.

Sneed, Lesley H.; D’Antino, Tommaso; Carloni, Christian; Missouri University of Science and Technology. Center for Transportation Infrastructure and Safety

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Experimental investigation of FRCM/concrete interfacial debonding.

2014-07-01
By Sneed, Lesley H. ; D’Antino, Tommaso ; Carloni, Christian

[PDF-741.09 KB]

English

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Creators:

Sneed, Lesley H. ; D’Antino, Tommaso ; Carloni, Christian

Sneed, Lesley H. ; D’Antino, Tommaso ; Carloni, Christian Less -
Corporate Creators:

Missouri University of Science and Technology. Center for Transportation Infrastructure and Safety
Corporate Contributors:

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

[+]

Bond Strength (Materials) Composite Materials Concrete Structures Direct Shear Tests Fiber Reinforced Concrete Jacketing (Strengthening)
Publication/ Report Number:

NUTC R313 ; Project #00040206

NUTC R313 ; Project #00040206 Less -
Resource Type:

Tech Report
Geographical Coverage:

Missouri
Corporate Publisher:

Missouri University of Science and Technology. Center for Transportation Infrastructure and Safety
Abstract:

This report presents the results of an experimental study conducted to understand the stress-transfer mechanism of fiber reinforced concrete matrix (FRCM) composites externally bonded to a concrete substrate for strengthening applications. The FRCM composite was comprised of a polyparaphenylene benzobisoxazole (PBO) fiber net and polymer-modified cement-based mortar. Direct shear tests were conducted on specimens with composite strips bonded to concrete blocks. Parameters varied were composite bonded length and bonded width. Results were analyzed to understand the effective bonded length, which can be used to establish the load-carrying capacity of the interface to design the strengthening system. The normalized load carrying-capacity was plotted against the width of the composite strip to study the width effect. Finally, strain gage measurements along the bonded length were used to investigate the stress-transfer mechanism. This study was sponsored by the National University Transportation Center at the Missouri University of Science and Technology in Rolla, Missouri.
Format:

PDF
Funding:

DTRT06-G-0014
Collection(s):

University Transportation Centers US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:33f86d1a60c4439ef6a712805024ad76e8c0481dd2c9b66af52521ffb755088f
Download URL:

https://rosap.ntl.bts.gov/view/dot/27951/dot_27951_DS1.pdf
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Experimental investigation of FRCM/concrete interfacial debonding.

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