Michigan Residential Builders License Practice Test

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What is the recommended temperature range for the placement of mortar?

  1. 40/60 degrees Fahrenheit

  2. 60/80 degrees Fahrenheit

  3. 70/100 degrees Fahrenheit

  4. 50/70 degrees Fahrenheit

The correct answer is: 70/100 degrees Fahrenheit

The recommended temperature range for the placement of mortar is typically between 70 and 100 degrees Fahrenheit. This range is optimal because it allows for proper hydration and curing of the mortar, ensuring that it attains the necessary strength and durability. At temperatures within this range, the chemical reactions that occur when water is added to the mortar ingredients proceed at an ideal rate, promoting adequate bonding and setting without leading to issues such as cracking or dry-out that can occur in extreme temperatures. Therefore, working within this temperature range is crucial for achieving high-quality masonry work.

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