b-1 tender form - Maharashtra Industrial Development Corporation

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a) Sufficient sills or underpinnings, in addition to base plates, shall be provided,
particularly, where scaffoldings are erected on soft grounds.
b) Adjustable bases to compensate for uneven ground shall be used.
c) Proper anchoring of the scaffolding/staging at reasonable intervals shall be provided in
each direction with the main structure wherever available.
d) Horizontal braces shall be provided to prevent the scaffolding from rocking.
e) Diagonal braces shall be provided continuously from bottom to top between two
adjacent rows of vertical supports.
f) The scaffolding/staging shall be checked at every stage for plumb line.
g) Wherever the scaffolding/staging is found to be out of plumb, it shall be dismantled and reerected
afresh. Effort shall not be made to bring it in line with a physical force.
h) All clamps and couplings shall be properly tightened with nuts and bolts to avoid
slippage.
i) Erection work of a scaffolding/staging under no circumstances shall be left totally to
semiskilled of skilled workmen and shall be carried out under the supervision of contractor’s
technically qualified civil engineer.
For smaller works or work in remote areas, wooden ballies or bamboos may be permitted for
scaffolding/staging by the Engineer-in-Charge at his sole discretion. The contractor must ensure the
safety and suitability of such works as described under clause 3.5.1
1.7 Embedment of Fixtures : All fixtures, pipes, conduits, holdfasts of doors and windows etc. required
to be built in walls, shall be embedded in plain cement concrete of grade 1:3:6 at the required position
as the work proceeds.
1.8 Item to Include : Item includes supply of accepted standard IInd class bricks, all other material viz.
cement, sand or fine aggregate, water; all labour; scaffolding; tools and equipment; bailing out the
water, mixing of mortar, laying of the brickwork as specified above etc.. The cost of testing, the
machinery hire/depreciation charges, charges for scaffolding, curing etc. are deemed to be included in
the item rate for the brick work. Item also includes providing openings, fixtures, preparing soffits for
beams or other elements, racking of joints on outer surface etc. upto a lift of + 5 m.
1.9 Mode of Measurement and Payment : The measurement of brickwork will be on volumetric basis
in cubic metre (cum). Deductions for rectangular or circular openings, shall be as per IS : 1200.
Item No 23 Providing plaster in cement mortar in 1:3 without neeru finishing to concrete or masonry
surface in all position including scaffolding and curing complete.
a) 6 mm Thick Single Coat.
2.1 General : The item pertains to providing Plaster in CM 1:3, without neeru finish to concrete or
masonry surface.
2.2 Material :
Cement : As per item Gen/C/0.2.1.
Sand : As per item Gen/C/0.2.1
Neeru : Standard brand instant neeru or sanala may be used.
Water : As per item Gen/C/0.2.4
2.3 Cement Mortar : Cement mortar of the specified proportion of 1:3 shall be prepared as per item
Gen/E/0.2.
2.4 Preparation of Surface : The joints in masonry shall be raked out properly. Dust and loose mortar
shall be brushed out properly. Efflorescence if any, shall be removed by brushing and scrapping. The
surface shall then be thoroughly washed with water, cleaned and kept wet before plastering is
commenced.
2.5 Scaffolding : The contractor shall provide scaffolding required for facility of construction. Quoted
rates are deemed to included the cost of scaffolding as required.
Contractor.
Executive Engineer(E&M).