Laying CMU on a drizzly day, which site habit supports joint quality?
Choices
- (A) Over-wet mortar beyond spec for spreadability
- (B) Cover dry packs, shield courses from direct rain, follow weather limits in the method statement
- (C) Use soupy joints to dry faster
- (D) Remove weather protection after one hour always
Correct answer: (B)
Cover dry packs, shield courses from direct rain, follow weather limits in the method statement
Explanation
Rain washes lime from joints weakening bond.