Restricting the height of masonry constructed per day is a remedial measure to prevent:
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A.
unequal settlement of masonry
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B.
lateral pressure on the walls
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C.
unequal settlement of subsoil
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D.
lateral movement of subsoil
Correct Answer:
A. unequal settlement of masonry
Explanation:
The correct answer is unequal settlement of masonry.
Limiting the vertical progress of masonry construction to a maximum height of 1.5 meters per day is a standard practice to ensure structural stability. When fresh mortar is placed, it is soft and compressible. If too many layers are added quickly, the cumulative weight of the upper bricks can squeeze the wet mortar in the lower joints before it has gained sufficient strength. This leads to uneven compression and settlement within the wall, potentially causing misalignment, cracks, or structural weakness. Allowing the mortar time to set and harden between stages ensures the wall can safely support the load of subsequent layers.
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