Clay brick on a hot, windy day pulls water from the mortar so quickly that joints become stiff before tooling. What field response addresses the masonry problem?
Correct Answer
A) Control unit suction as allowed by the specification, such as prewetting high-IRA brick before laying
High-suction units can rob mortar water before proper bond develops; controlling suction, including specified prewetting where appropriate, addresses the cause. Other choices: uncontrolled water addition, changing mortar type, or leaving open head joints creates new defects.
Why This Is the Correct Answer
High-suction units can rob mortar water before proper bond develops; controlling suction, including specified prewetting where appropriate, addresses the cause. Other choices: uncontrolled water addition, changing mortar type, or leaving open head joints creates new defects.
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