Volume-IF - JantERmantER

OCPl-K9A01
3.2.0 Reinforcement
3.2.1
Bending of Reinfortement
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3.2.2 Pladng
All bars shall be carefuny and accurately bent by the Contractor in
accordance with approved Drawings and ber bending schedules. Special
care shall be taken to ensure correct lengths of laps. The bars shall not be
bent or straightened in any manner that wiN Injure the bara or impair the bond
between reinforcement & conae1e. Bends and hooks are to be provided as
laid down in the IS:2502.
All reinforcement shell be placed and maintained in the position shown in the
drawings. Contractor shaR provide approved type of cover blocks to sUit the
requirement of the Drawings. Where reinforcement Is to be provided on two
faces of the shell, the Contractor shell provide adeqoate number of
separators, with the approval of the Engineer. Any additional supporHo the
re1nforcing cage. if required at the time of concreting, shall alSO: be provided,
to the satisfaction of the Engineer. lapping of reinforcemenl as specified in
the drawings or as directed by the Engineer, shall be provided. laps shall be
staggered and too many laps shan be.avoided. Welded laps shall be
provided only when directed or approved by the Engineer. '
3.2.3 Fixing of Reinforcement
18 SWG annealed steel wire shall be used as binding wire. 8ar crossing one
another and contact laps shall be bound with this wire, twisted tight to make
the skeleton or network rigid so that the reinforcement is not displaced during
placing of concrete.
3.10 Fonns
( Construction by Slip-form Method
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Slip-fonm construction 'shaA !:le for constructioiI of the )oYind shield. Type of
,~ Sfip-form proposed should be Indicated In the offer with sketches, drawings
and. constnlCtioo ' statement ·aselCplained herein;;d'ter; !'lumber, type and '
capacities of Jacks, the' control system and achievable rate of progress in
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mmIhour should also be indicated. The chosen scheme shell be of a psst
proven design. A certified perfonmance record of the scheme should be
submitted with the offer to guarantee woikability of the scheme both from
execution time and safety point of view. .
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The Tenderer shQuld fumish a brief but commprehensive statement
indicating the planning & programme and method of work to be followecUor
the approval of Owner at the time of submitting Tender. This slstement shall
include the following Hems:
i) Type and description of SUp:form eq';lipment and its accessories.
(PCA.CD-003.S60SCSA24,doc.dac) V.II-02lS-XXIV: 17
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