Contribution to pointing mortar durability

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ConferenceInternational RILEM Workshop on Historic Mortars, Characteristics and Tests: 12 May 1999, Paisley, Scotland
Pages361369; # of pages: 9
Subjectpointing, mortar, bond, freeze-thaw; Mortar
AbstractA measure of the durability of Portland cement, lime mortars suitable for heritage stone masonry was obtained by testing small stack bonded masonry speci-mens for flexural bond strength, stress-strain under compression and freeze-thaw resistance. The bond strength of the mortar to Ohio stone was generally very poor in contrast to Nepean stone. The poor bond also caused rela-tively high initial deformation under compressive load. Loss of bond was also the most common form of failure observed during the freeze-thaw tests. Additional factors pro-bab-ly affecting the freeze-thaw resistance of the mortar are air entrainment, carbon-ation and the higher than expected lime content in the lime putty.
Publication date
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedYes
NRC number43125
NPARC number20331311
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Record identifierce9c6d02-b22d-4687-bd3e-d428995871c0
Record created2012-07-18
Record modified2016-05-09
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