Definition of cover block use in construction

Posted by Civil Engineering on

Wednesday, 15 July 2020

Concrete cover, in reinforced concrete, is the least distance between the surface of embedded reinforcement and the outer surface of the concrete.

Concrete Cover Blocks is also known as Spacers which is used to provide spacing at Slab, Column, Beam & foundation. Application is very simple as place COVER BLOCK between Rebar(Reinforcement bar) and ground/wall.

Spacers are used to provide specific height for your concrete reinforcement structure before pouring.

There are four types of Cover Blocks/Spacers,

1- Slab Cover

2- Column & Beam Cover

3- Foundation Cover

4- Piling Cover

The concrete cover must have a minimum thickness for three main reasons

A.To protect the steel reinforcement bars (rebars) from environmental effects to prevent their corrosion;

B.To provide thermal insulation, which protects the reinforcement bars from fire;

C.To give reinforcing bars sufficient embedding to enable them to be stressed without slipping.

Labels: Construction, RC Design

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