Quantity Take Off or QTO is a well known project estimating company serving to the contractors, home builders, architects, design- build firms and sub contractor trade. We are providing estimating service since 2002 with a great chronicle of success.
Different types of clear cover in reinforcement concrete
construction video tutorial provides brief instructions on how to arrange clear
cover in different areas in proper quantities in reinforcement concrete. It is
dependent on the exposure condition and fire resistance.
Cover stands for the minimum distance among the surface of embedded
reinforcement and the exterior surface of the concrete (ACI 130). The depth of
clear cover is calculated with a cover meter.
Given below the details of clear cover :-
For water retaining structures – The clear cover
should vary from 20 mm to 30 mm
For flat slab – The clear cover should be 20 mm
For slab – The clear cover will be 15 mm
For column – The clear cover should have been 40 mm
For strap beam – The clear cover should be 50 mm
For raft foundation at bottom – The
clear cover should be 75 mm For shear wall – The clear cover should be 25 mm For footing – The clear cover should be 50 mm For staircase – The clear cover should be 15 mm
Read more ~~~~~~~~~~~~~~~~~~~~~~~~ Published By Rajib Dey www.constructioncost.co ~~~~~~~~~~~~~~~~~~~~~~~~