Flexural and shear bond characteristics of thin layer polymer cement mortared concrete masonry

Thamboo, Julian Ajith, Dhanasekar, Manicka, & Yan, Cheng (2013) Flexural and shear bond characteristics of thin layer polymer cement mortared concrete masonry. Construction and Building Materials, 46, pp. 104-113.

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Abstract

This paper presents an experimental investigation of the flexural and shear bond characteristics of thin layer polymer cement mortared concrete masonry. It is well known that the bond characteristics of masonry depend upon the mortar type, the techniques of dispersion of mortar and the surface texture of concrete blocks; there exists an abundance of literature on the conventional 10 mm thick cement mortared masonry bond; however, 1-4 mm thick polymer cement mortared masonry bond is not yet well researched. This paper reports a study on the examination of the effect of mortar compositions, dispersion methods and unit surface textures to the flexural and shear bond characteristics of thin layer mortared concrete masonry. A non-contact digital image correlation method was adopted for the measurement of strains at the unit-mortar interface in this research. All mortar joints have been carefully prepared to ensure achievement of the desired thin layer mortar thickness on average. The results exhibit that the bond strength of thin mortar layered concrete masonry with polymer cement mortar is higher than that of the conventional masonry; moreover the unit surface texture and the mortar dispersion methods are found to have significant influence on the flexural and shear bond characteristics. From the experimental results, a correlation between the flexural and the shear bond strengths has been determined and is presented in this paper.

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5 citations in Scopus
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4 citations in Web of Science®

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ID Code: 62726
Item Type: Journal Article
Refereed: Yes
Keywords: Concrete block, Concrete masonry, Digital image correlation methods, Digital image correlations, Experimental investigations, Flexural bond strengths, Polymer cement mortars, Shear bond strengths
DOI: 10.1016/j.conbuildmat.2013.04.002
ISSN: 0950-0618
Divisions: Current > Schools > School of Chemistry, Physics & Mechanical Engineering
Current > Schools > School of Civil Engineering & Built Environment
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Funding:
Copyright Owner: Copyright 2013 Elsevier
Copyright Statement: This is the author’s version of a work that was accepted for publication in Construction and Building Materials. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Construction and Building Materials, [VOL 46, ISSUE , (2013)] DOI: 10.1016/j.conbuildmat.2013.04.002
Deposited On: 23 Sep 2013 03:12
Last Modified: 09 Oct 2015 13:46

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