The following reference shall be used in conjunction with this
IS Codes : IS 456, IS 2502
Bar cutting machine
Bar bending machine
Crane /Hydra(for lifting and shifting )
Tractor with trolley
All people carrying out re-bars fabrication at reinforcement
yard must wear PPEs.
Rebar scrap from cut off will be collected in designated
Working area in reinforcement yard will always be neat &
Reinforcement shall be clear and free from loose mill scales,
dust, loose rust, coats of paints, oil or other coating which may
destroy or reduce bond.
It shall be stored in such a way as to avoid distortion and
to prevent deterioration and corrosion.
Assembly of Reinforcement
All reinforcement shall be procured from approved sources.
Reinforcement will be delivered to site under the control of the
Procurement Section. The reinforcement will be delivered to the
on-site fabrication yard and stored clear of the ground to prevent
damage and accumulation of dirt and excessive rust.
The bar bending schedules to be prepared and rechecked before
Bars shall be bent correctly and accurately to the size and
shape as shown in the BBS (As per drawing). Preferably bars of full
length shall be used. Necessary cutting and straightening is also
included. Overlapping of bars, where necessary shall be done as
directed by the Engineer-in- Charge.
BBS Engineer shall check and verified as per BBS at site.
QA/QC Engineer shall check and verified at site.
The overlaps/splices shall be staggered as per directions of
the Engineer-in-Charge. But in no case the overlapping shall be
provided in more than 50% of cross sectional area at one section.
Bonds and Hooks Forming End Anchorages: Reinforcement shall
be bent and fixed in accordance with procedure specified in IS 2502,
code of practice of bending and fixing of bars for concrete
Binders, stirrups, links etc.: In case of binders, stirrups,
links etc. shall be bent as per the Dwg/BBS.
Bars shall not be cut by oxy acetylene torch. All bars are to
Fabricated reinforcement bars shall be placed in position as
shown in the drawings. The bars crossing one another shall be tied
together at every intersection with binding wire twisted tight to
make the skeleton of the steel work rigid so that the reinforcement
does not get displaced during deposition of concrete
In case of beam and slab construction cover blocks of
thickness equal to the specified cover shall be placed between the
bars and shuttering, so as to secure and maintain the requisite cover
of concrete over reinforcements.
In case of cantilevered and doubly reinforced beams of slabs,
the vertical distance between the horizontal bars shall be maintained
by introducing chairs, spacers or support bars of steel at 1.0meter
or at shorter spacing to avoid sagging.
In case of columns and walls, the vertical bars shall be kept
in position by means of timber templates with slots accurately cut in
them and with cover block of required size suitable tied to the
reinforcement to ensure that they are in correct position during
In case of other RCC. Structure such as arches, domes,
shells, storage tanks etc. a combination of cover blocks, spacers and
templates shall be used as directed by Engineer-in-charge.
Bending at Construction Joints
Where reinforcement bars are bent aside at construction
Joints and afterwards bent back into their original position care
should be taken to ensure that at no time the radius of the bend is
less than 6 bar diameter for deformed bars. Care shall also be taken
when bending back bars to ensure that the concrete around the bar is
Extreme care should be given & proper consideration in the
handling and storage of the fabricated materials such that wooden
planks should be installed on level surface of the ground.
Every size and type of bending should be properly segregated
for easy retrieval and handling.
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