The effect of adhesive type on the bond of NSM tape to concrete

Carol K Shield; Cathy French; Emily Milde

The effect of adhesive type on the bond of NSM tape to concrete

Carol K Shield, Cathy French, Emily Milde

Civil, Environmental, and Geo- Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

19 Scopus citations

Abstract

Near surface mounted (NSM) reinforcement is becoming a viable material for strengthening existing concrete structures in flexure and shear. As this method moves from the laboratory testing phase to implementation in the field, designers will need to be able to predict the capacity of the strengthening scheme. Bond of NSM reinforcement to concrete will likely be a key factor in determining the strengthened capacity. There are a number of parameters that affect bond between steel rebar and concrete, where only two different materials are present. In the case of bond of NSM reinforcement, a third material, adhesive, is present, further complicating the analytical description of bond of NSM reinforcement. This paper presents the results of two types of bond tests that were used to determine the effect of epoxy adhesive material properties on the bond of NSM tape to concrete. From the testing, it was found that even for epoxy adhesives with similar shear strengths, the bond strength and bond failure mechanisms differ significantly.

Original language	English (US)
Title of host publication	7th International Symposium on Fiber-Reinforced Polymer (FRP) Reinforcement for Concrete Structures
Editors	Carol K. Shield, John P. Busel, Stephanie L. Walkup, Doug D. Gremel
Publisher	American Concrete Institute
Pages	355-372
Number of pages	18
ISBN (Electronic)	9780870311895
State	Published - Oct 1 2005
Event	7th International Symposium on Fiber- Reinforced Polymer Reinforcement for Reinforced Concrete Structures, FRPRCS 2005 - Kansas City, United States Duration: Nov 6 2005 → Nov 10 2005

Publication series

Name	American Concrete Institute, ACI Special Publication
Volume	SP-230
ISSN (Print)	0193-2527

Conference

Conference	7th International Symposium on Fiber- Reinforced Polymer Reinforcement for Reinforced Concrete Structures, FRPRCS 2005
Country/Territory	United States
City	Kansas City
Period	11/6/05 → 11/10/05

Bibliographical note

Publisher Copyright:
© 2005 American Concrete Institute. All rights reserved.

Keywords

Bond
FRP
NSM

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Shield, C. K., French, C., & Milde, E. (2005). The effect of adhesive type on the bond of NSM tape to concrete. In C. K. Shield, J. P. Busel, S. L. Walkup, & D. D. Gremel (Eds.), 7th International Symposium on Fiber-Reinforced Polymer (FRP) Reinforcement for Concrete Structures (pp. 355-372). (American Concrete Institute, ACI Special Publication; Vol. SP-230). American Concrete Institute.

The effect of adhesive type on the bond of NSM tape to concrete. / Shield, Carol K; French, Cathy; Milde, Emily.
7th International Symposium on Fiber-Reinforced Polymer (FRP) Reinforcement for Concrete Structures. ed. / Carol K. Shield; John P. Busel; Stephanie L. Walkup; Doug D. Gremel. American Concrete Institute, 2005. p. 355-372 (American Concrete Institute, ACI Special Publication; Vol. SP-230).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Shield, CK, French, C & Milde, E 2005, The effect of adhesive type on the bond of NSM tape to concrete. in CK Shield, JP Busel, SL Walkup & DD Gremel (eds), 7th International Symposium on Fiber-Reinforced Polymer (FRP) Reinforcement for Concrete Structures. American Concrete Institute, ACI Special Publication, vol. SP-230, American Concrete Institute, pp. 355-372, 7th International Symposium on Fiber- Reinforced Polymer Reinforcement for Reinforced Concrete Structures, FRPRCS 2005, Kansas City, United States, 11/6/05.

Shield, Carol K ; French, Cathy ; Milde, Emily. / The effect of adhesive type on the bond of NSM tape to concrete. 7th International Symposium on Fiber-Reinforced Polymer (FRP) Reinforcement for Concrete Structures. editor / Carol K. Shield ; John P. Busel ; Stephanie L. Walkup ; Doug D. Gremel. American Concrete Institute, 2005. pp. 355-372 (American Concrete Institute, ACI Special Publication).

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abstract = "Near surface mounted (NSM) reinforcement is becoming a viable material for strengthening existing concrete structures in flexure and shear. As this method moves from the laboratory testing phase to implementation in the field, designers will need to be able to predict the capacity of the strengthening scheme. Bond of NSM reinforcement to concrete will likely be a key factor in determining the strengthened capacity. There are a number of parameters that affect bond between steel rebar and concrete, where only two different materials are present. In the case of bond of NSM reinforcement, a third material, adhesive, is present, further complicating the analytical description of bond of NSM reinforcement. This paper presents the results of two types of bond tests that were used to determine the effect of epoxy adhesive material properties on the bond of NSM tape to concrete. From the testing, it was found that even for epoxy adhesives with similar shear strengths, the bond strength and bond failure mechanisms differ significantly.",

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AB - Near surface mounted (NSM) reinforcement is becoming a viable material for strengthening existing concrete structures in flexure and shear. As this method moves from the laboratory testing phase to implementation in the field, designers will need to be able to predict the capacity of the strengthening scheme. Bond of NSM reinforcement to concrete will likely be a key factor in determining the strengthened capacity. There are a number of parameters that affect bond between steel rebar and concrete, where only two different materials are present. In the case of bond of NSM reinforcement, a third material, adhesive, is present, further complicating the analytical description of bond of NSM reinforcement. This paper presents the results of two types of bond tests that were used to determine the effect of epoxy adhesive material properties on the bond of NSM tape to concrete. From the testing, it was found that even for epoxy adhesives with similar shear strengths, the bond strength and bond failure mechanisms differ significantly.

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The effect of adhesive type on the bond of NSM tape to concrete

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