Covering for reinforcement of Concrete

Covering for reinforcement in concrete is very important.  The thickness of cover depends on environmental conditions and type of structural member. The correct cover shall be maintained by
cement mortar cubes (blocks) or other approved means.Concrete coverfor reinforcement in the site was as follows. (This may vary depending on thesite)

Ground Beams	50mm Surface cast against ground 40mm Other face/on blinding 30mm Top face 40mm earth face
Ground Slabs	30mm Top face ;40mm earth face
Suspended Slabs	25mm Internal & external
Beams, Lintels & Capping beams	30mm Internal & external
Columns and Pedestals	30mm Surfaces cast against ground 30 mm Internal & external surfaces in contact with ground cast against shutter
Walls	40mm Surfaces cast against ground 30mm Internal & external surfaces in contact with ground cast against shutter

Cover blocks used in reinforcement

Cover block is  key part of the reinforcement work. It is used to maintain the cover between shuttering boards and the mesh of the reinforcement. In our site 1:2 mortars and binding wire was used for cover block. Cover block size 1.5" x 1.5" and thickness is depending on situation 

cover blocks