Which of the following pairs of lime types and their characteristics is correctly matched?
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A.
Slaked Lime – Used in RCC Construction
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B.
Hydraulic Lime – Gains Strength in Air Only
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C.
Quick Lime – Highly Stable
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D.
Fat Lime – High Plasticity
Correct Answer:
D. Fat Lime – High Plasticity
Explanation:
Fat lime is the correct match because it is a high-purity lime known for its superior plasticity and workability, making it ideal for finishing coats, plastering, and whitewashing. Unlike hydraulic lime, which can set underwater or in damp conditions, fat lime (a non-hydraulic lime) hardens slowly by absorbing carbon dioxide from the air. Quick lime is chemically unstable and reacts violently with water, while slaked lime is typically used in mortars and plasters rather than reinforced concrete (RCC) construction.
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