Journal Published Online: 13 October 2014
Volume 43, Issue 5

Use of Non-Standard Specimens to Study the Compressive Strength of Multi-Coat Renders

CODEN: JTEVAB

Abstract

The compressive strength of coating mortars is considered a fundamental property in most standards and is one of the properties most frequently determined in the laboratory. There are as yet only a few studies on evaluating the compressive strength of coating mortar from specimens collected in situ. This paper analyzes the possibility of correlating non-standard specimens, prepared in laboratory with several coats, with cores extracted from prototypes of brick coated with mortar (traditional and premixed) through the pull-off technique. The results enable us to conclude that the use of those non-standard specimens (with different thickness and various layers) instead of standard ones (specimens with 40 × 160 × 160 mm3, with only one mortar) can be a closer-to-reality alternative to study the compressive strength of renders, particularly those that are applied in more than one coat as traditional renders are.

Author Information

Soares, A.
Instituto Superior Técnico, Universidade de Lisboa, Lisbon, PT
Flores-Colen, I.
Instituto Superior Técnico, Universidade de Lisboa, Lisbon, PT
de Brito, J.
Instituto Superior Técnico, Universidade de Lisboa, Lisbon, PT
Pages: 11
Price: $25.00
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Stock #: JTE20140028
ISSN: 0090-3973
DOI: 10.1520/JTE20140028