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Evaluation of Bond Strength between Overlay and Substrate in Concrete Repairs
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Concrete Structures.
2010 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

Good bond strength between overlay and substrate is a key factor in performance of concrete repairs. This thesis was aimed at studying the evaluation of bond strength between repair material and substrate at the interface. Many factors such as surface roughness, existence of micro cracks, compaction, curing etc influence the bond strength. The quality assurance of the bond strength requires test methods that can quantify the bond strength as well as identify the failure mode. There have been numerous investigations led to development of different test methods. The forces which are applied in each test and the failure mode are important in order to choose the proper test. An interpretive study on test methods is presented. While this study can provide individually useful information on bond strength and bond characterization, it also contains discussions about each test and comparison of test methods.

Place, publisher, year, edition, pages
Trita-BKN-Examensarbete, ISSN 1103-4297 ; 307
Keyword [en]
Bond strength, Pull-off test, Slant shear test, Concrete repair
URN: urn:nbn:se:kth:diva-36796ISRN: KTH/BKN/EX—307‐‐SEOAI: diva2:431113
Available from: 2011-08-16 Created: 2011-07-15 Last updated: 2011-08-16Bibliographically approved

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