BID Document for Guest House with Boundary Wall.pdf - Integrated ...

8.9 Bar Bending Schedule:
Concrete Grade M 15 M 20 M 25
Development Length 68 D 51 D 46 D
Anchorage As per I.S. – 456-2000
The reinforcement work will include cutting to sizes, bending, hooking binding with 14 to 18 S.W.G. soft
pliable wire etc. as per P.W.D. schedule. The work shall also be inclusive of stirrups, distributors, binders etc.
The contractor shall prepare his “Bar Bending Schedule” for the entire construction work in phases before
starting the work and shall submit it to the EIC for his approval.
Cutting of M.S. rods in an unplanned way will not be allowed and for that if any material is found to be wasted
or have to be used in excess due to the fault of the contractor , no payment shall be made on this score and the
cost of such excess material shall be realised from the contractor’s bill at penal rate as specified elsewhere of
this tender document
The item of M.S work should include the cost of reinforcement, cutting to sizes, bending and fabricating
including the supply of R.W.G wire, bolts and nuts etc. and all other work according to specifications,
drawing or otherwise. Cut pieces of steel materials less than 1 mtr cannot be used as a main bar.
8.10 Form Work
The form work shall conform to relevant I.S. Code of practice Shuttering in form work shall be either made of
steel or ply board. Surface of shuttering in contact with concrete shall be made smooth & at joints rendered
smooth. In every case the joints of the shuttering are to be such as to prevent the loss of liquid from the
concrete. All shuttering form work must be adequately stayed and braced to the satisfaction of the Engineerin-charge
for properly supporting the concrete during the period of hardening. All form works shall be
removed without shock or vibration. Before the form work is stripped, concrete surface shall be exposed when
necessary in order to ascertain that the concrete has set and hardened sufficiently.
8.11 Staging & scaffolding:
Whenever necessary staging and scaffolding must be provided .All shuttering and framing must adequately be
stayed and braced to the satisfaction of the Engineer-in-charge for properly supporting the concrete during the
period of hardening. It shall be so constructed that it may withstand the jerk and shock of vibration of
concrete.
Scaffolding must be strong and rigid stiffened with necessary cross bracings and proper deck at every stage
where casting work is in progress to prevent any injuries to persons and to facilitate inspection, supervision
and taking measurement at any time.
The hire and labour charges for staging, scaffolding, platform etc. as provided in the schedule of works is for the
entire construction work including shell wall of reservoir etc till completion of work and removing the same as
per direction and instruction of EIC.
8.12 Curing and Finishing:
The joint shall be cleaned off the gray cement slurry with wire/coir brush or trowel to a depth of 2 mm to 3
mm and all dust and loose mortar removed. Joints shall then be flush pointed with white cement . The floor
shall then be kept wet for 7 days. After curing the surface shall be washed and finished clean. The finished
floor and wall shall not sound hollow when tapped with a wooden mallet.
8.13 Verticality of structure:
The vertical members should be perfectly vertical and no deviation in x – axis and /or y- axis is admissible. The
Contractor should take adequate precautionary measures to ensure that the structure is constructed true to
plumb. Similarly all horizontal members of the structures should be truly horizontal.
9.0 TESTING OF CONCRETE:
75