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Q:

Plasticizers are used in situations ___________

A) Where high degree of workability is required B) Where medium degree of workability is required
C) Where very low degree of workability is required D) Where low degree of workability is required
 
Answer & Explanation Answer: A) Where high degree of workability is required

Explanation: The decrease in the water/cement ratio enhances the concrete’s strength and longevity. Plasticizers are sometimes used in mass concrete to lower the cement content and hydration heat. Where low degree of workability is required like Deep beams, column and beam junctions.

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