Precast concrete curtain (PCC) wall panels are non-load-bearing elements. Yet the concrete used in them is of higher strength (generally 5,000 psi) than that used in the structural frame of the building (general 4,000 psi). Explain why that is so.
What will be an ideal response?
1. High strength concrete, along with Type III Portland cement, allows rapid fabrication of panels, typically with a
24-hour turnaround.
2. High-strength concrete gives greater resistance to water penetration and hence, greater durability to panels.
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