Concrete Matching Solution
This question requires matching terms related to concrete behavior (List - I) with their corresponding effects (List - II).
Matching Terms and Effects
Let's match each term from List - I with its most appropriate effect from List - II:
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A. Serviceability: This refers to the ability of a structure to perform its intended function under normal use. A key aspect of serviceability is limiting excessive Deflection (II), which can affect usability and aesthetics.
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B. Shear key: A shear key is a structural element designed specifically to resist relative Sliding (I) or shear movement between two connected components.
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C. Shrinkage: As concrete cures, it loses moisture and shrinks. If this shrinkage is restrained, it induces tensile stresses that often lead to Cracking (III).
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D. Concrete spalling: This is the breaking off of surface layers or chunks of concrete. In reinforced concrete, it is frequently caused by the expansive pressure of rust formed during the Corrosion (IV) of embedded steel reinforcement.
Final Match
Based on the explanations, the correct matching is:
- A - II (Serviceability - Deflection)
- B - I (Shear key - Sliding)
- C - III (Shrinkage - Cracking)
- D - IV (Concrete spalling - Corrosion)
This corresponds to option A-II, B-I, C-III, D-IV.