SC Pre-Engineered Metal Buildings Practice Questions - South Carolina Pre-Engineered Metal Buildings Contractor Examination Exam

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Unless a high-early-strength mix or the project specification says otherwise, newly placed concrete should be kept moist and above about 50°F for at least:

12 hours 24 hours 3 days for high-early-strength concrete or 7 days for standard portland-cement concrete 28 days of continuous ponding on every member

Correct Answer:

3 days for high-early-strength concrete or 7 days for standard portland-cement concrete

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