Standard Test Methods for In Situ Measurement of Masonry Mortar Joint Shear Strength Index

Available format(s)

Hardcopy , PDF

Superseded date

07-09-2015

Language(s)

English

Published date

06-01-2015

Publisher

American Society for Testing and Materials

Committee	C 15
DocumentType	Test Method
Pages	7
PublisherName	American Society for Testing and Materials
Status	Superseded
SupersededBy	ASTM C 1531 : 2016
Supersedes	ASTM C 1531 : 2009

1.1These test methods cover procedures for the determination of the average in situ mortar joint shear strength index in existing unreinforced solid-unit and ungrouted hollow-unit masonry built with clay or concrete units. Three methods are provided:

1.1.1Method A (with Flatjacks Controlling Normal Compressive Stress)—For determining mortar joint shear strength index when the state of normal compressive stress at the test site is controlled during the test using the flatjack method described in Test Method C1197. Horizontal displacement of the test unit is monitored throughout the test. The test setup for Method A is shown in Fig. 1.

1.2The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

1.3This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.