Carpenter Red Seal Exam Prep · Question
What is the primary factor determining the minimum required concrete cure time before formwork stripping can begin?
The ambient air temperature significantly impacts the rate of concrete hydration and strength gain. Lower temperatures slow down the curing process, necessitati
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Question: What is the primary factor determining the minimum required concrete cure time before formwork stripping can begin?
Answer options: ✅ The ambient air temperature.
- The availability of labour for stripping.
- The colour of the concrete.
- The surface finish of the concrete.
Correct answer: The ambient air temperature.
Explanation: The ambient air temperature significantly impacts the rate of concrete hydration and strength gain. Lower temperatures slow down the curing process, necessitating longer cure times before formwork can be safely stripped without compromising the concrete's structural integrity or exposing it to damage.
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- When interpreting a foundation plan, a dashed line with 'P. WALL' typically represents which of the following?
- A site plan shows contour lines with an interval of 0.5 m. If two adjacent contour lines are labelled 124.0 m
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