Mortar on a board has started to stiffen late in the morning. The mason asks to add water repeatedly and keep it for the afternoon. What should the foreman require?
Correct Answer
B) Follow the specification limits for retempering and discard mortar that has begun to set or exceeded its allowed time
Mortar can only be retempered within allowed limits before initial set or the specified time limit; old or setting mortar should be discarded. Other choices weaken quality control or hide poor mortar in selected joints.
Why This Is the Correct Answer
Mortar can only be retempered within allowed limits before initial set or the specified time limit; old or setting mortar should be discarded. Other choices weaken quality control or hide poor mortar in selected joints.
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