What Are Cover Blocks? : Different Sizes Of Cover Blocks Used in Construction.

Cover blocks are the spacers provided at a design depth of concrete to all the reinforcement including stirrups or links depending on the condition of exposure.

Purpose of Cover Blocks in Construction :

Keeping a gap between reinforcement bars. Increasing structural strength. Protection of reinforcement from corrosion. Fire damage prevention.

Common Sizes Used in Various Types of Construction

1 Footing :- 50-75 mm 2 Column :- 40 mm 3. Beam :- 25 mm 4. Slab :- 20 mm 5. Raft Foundation :- 80 mm

For different climatic conditions, as per the code 456 : 2000.

1. Mild - 20 mm 2. Moderate - 30 mm  3. Severe - 45 mm  4. Very Severe - 50 mm 5. Extreme - 75 mm

How To Choose the Right Cover Blocks?

Cost economical, Material supportive, Shape and Size aligning to reinforcement, Durable and resilient, Good Load Capacity.

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