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In curing cement plasters, water is spri...

In curing cement plasters, water is sprinkled from time to time. This helps in

A

keeping it cool

B

developing interlocking needle-like crystals of hydrated silicates

C

hydrating sand and gravel mixed with cement

D

converting sand into silicic acid

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question regarding why water is sprinkled on cement plasters during curing, we can break down the reasoning into clear steps: ### Step-by-Step Solution: 1. **Understanding Curing**: Curing is a process that involves maintaining adequate moisture, temperature, and time to allow the cement to properly hydrate and gain strength. 2. **Role of Water**: When water is sprinkled on cement plaster, it serves to keep the cement moist. This is crucial because hydration is a chemical reaction that occurs when water reacts with the cement. 3. **Formation of Hydrated Silicates**: The hydration of cement leads to the formation of various compounds, primarily hydrated silicates. These compounds are essential for the strength and durability of the cement. 4. **Interlocking Structure**: The water helps in developing an interlocking needle-like structure of hydrated silicates. This structure is vital as it contributes to the mechanical strength of the hardened cement. 5. **Conclusion**: Therefore, the primary reason for sprinkling water on cement plaster during curing is to facilitate the development of these interlocking needle-like structures, which enhances the strength of the cement. ### Final Answer: The correct answer is that sprinkling water helps in developing interlocking needle-like structures of hydrated silicates. ---
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