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📌 Concrete Requirements for Different Exposure Conditions – IS 456:2000 Explained (Using 20 mm Aggregate)

In this video, we explain the minimum requirements of concrete grade, water-cement ratio, and cement content for various exposure conditions (mild to extreme) as per IS 456:2000, considering 20 mm nominal maximum size aggregate.

👉 Key Topics Covered:

What are the different exposure conditions?

Concrete grade selection based on environment

Water-cement ratio limits for durability

Minimum cement content as per IS 456

Use of 20 mm aggregate – why it matters

Practical applications in construction projects


🎯 This video is useful for:

Civil Engineering Students (Diploma / B.Tech / M.Tech)

Site Engineers & Structural Designers

GATE / SSC JE / AE / State PSC aspirants

Anyone working on concrete mix design & durability criteria


📚 Based on IS 456:2000 – Plain and Reinforced Concrete – Code of Practice


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