What is a good practice to follow when mixing concrete in hot weather?
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A.
Add large amount of fine aggregate to the mix.
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B.
Use warm water for mixing.
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C.
Add large amount of cement to the mix.
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D.
Use cold water to reduce the temperature of the mix.
Correct Answer:
D. Use cold water to reduce the temperature of the mix.
Explanation:
The correct answer is Use cold water to reduce the temperature of the mix.
When preparing concrete during hot weather, it is essential to manage the temperature of the mixture to prevent rapid setting and cracking. Utilizing chilled water or adding ice helps lower the initial temperature of the concrete, ensuring better workability and long-term durability. Other methods like using warm water or adding excess cement can negatively impact the curing process by increasing heat and causing the mixture to dry too quickly. Maintaining a cooler temperature during mixing is a standard industry practice to ensure the structural integrity of the final product.
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