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Be a brick.. get us out of wall crisis.

Byline: Donny

WE have a long, curved brick wall surrounding our garden. We've had to rebuild it twice since 1973. First it was knocked over in high winds, then it was damaged by heat and frost. About quarter of the bricks are showing signs of crumbling. Can we repair the damage instead of rebuilding? - Brenda Isherwood, Bristol

IF the mortar/ pointing is stronger than the brick, this will cause the brick to spall/crumble instead of the mortar. That's why the mortar should be weaker than the brick. This way the mortar crumbles during movement instead of the brick, and individual bricks can be cut out and replaced.
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Title Annotation:Features; Opinion, Column
Publication:Sunday Mirror (London, England)
Date:Jul 22, 2012
Words:108
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