Tensile pull-off adhesion testing is becoming a more frequent specification requirement for in situ quality assurance testing to confirm proper surface preparation and adhesion of high-performance protective linings applied to concrete. It is also becoming a widely used test for forensic analysis of protective linings in existing installations. There have been numerous investigations leading to the development of different devices and test pull-off adhesion methods used to assess bond strengths of mortars and overlay materials. There are fundamental differences between these methods that can dramatically impact tensile strength results. This paper presents the common pull-off adhesion test methods used in the United States as well as the results of experimental research investigating the results using two common tensile strength testers.

Subject
Concrete repair, Test methods, Fixtures, Materials, Adhesives, Substrates, Mortar, Pull off adhesion test, Substrate surfaces, Mechanical failure, Tensile strength, Epoxies, Concrete
© 2016 Association for Materials Protection and Performance (AMPP). All rights reserved. This work is protected by both domestic and international copyright laws. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means (electronic, mechanical, photocopying, recording, or otherwise) without the prior written permission of AMPP. Positions and opinions advanced in this work are those of the author(s) and not necessarily those of AMPP. Responsibility for the content of the work lies solely with the author(s).
2016
Association for Materials Protection and Performance (AMPP)
You do not currently have access to this content.