Core TradesQuestion 64 of 700
Fresh concrete is being placed into a tall wall form at a high rate on a cool day. The crew is concerned about lateral pressure on the forms. Which factor will MOST increase the lateral concrete pressure on the formwork?
a.Using a lower-slump, stiffer mix
b.Placing at a slower rate
c.Warmer concrete temperature
d.A faster rate of placement
Explanation
Lateral form pressure increases with a faster rate of vertical rise because more of the concrete remains fluid before it stiffens. Slower placement, stiffer/lower-slump mixes, and warmer concrete (faster set) all reduce peak pressure. A faster placement rate is the dominant factor increasing pressure.
Law Reference: 2025 CA Building Code, Chapter 19 (Concrete)Practice all 700 questions free — no signup required.
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