b-1 tender form - Maharashtra Industrial Development Corporation

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provide proper devices to the workmen like safety belts, helmets, goggles etc. to prevent injures to the
workmen. The safety of workmen is the responsibility of the contractor and the compensation for
injuries or deaths shall be made by the contractor as per the prevailing acts and rules.
7.4 Stacking of Dismantled Materials : All the reusable flooring material coming out of dismantling
shall be stacked separately as directed and returned to the MIDC stores.
7.5 Disposal : The spoils shall be disposed off as per directions of the Engineer-in-charge.
7.6 Item to Include : The item includes cutting of any type of flooring, with appropriate tools and
equipment, scaffolding if required, material, labour, transporting to the location and stacking /
disposing as directed by the Engineer-in-charge.
7.7 Mode of Measurement and Payment : The measurement of the floor area in sqm, to be removed,
shall be recorded before starting the actual work.
Payment shall be made on the actual area of flooring removed, at the contract rate per sqm.
Item No 3 Providing and laying white glazed tiles conforming to IS:777-1989 for flooring including
20mm thick cement mortar 1:4 including neat cement float, filling joints with neat cement slurry, curing
and cleaning complete (Indian make glaze tiles of standard make)
a) 150 x 150 mm first quality white colour tiles.
8.1 General : The item pertains to providing and laying white/colour glazed tiles for flooring
of specified size and quality.
8.2 Material : White or colour glazed tiles including specials, if any, shall be of approved make
and quality and shall conform to IS:777-1988 in all respects. Samples of tiles shall be got approved
from the Engineer-in- Charge, who shall keep them in his office for verification and composition. White
or colour cement shall be of approved make. The tiles shall tested as per IS:777-1988 from the
approved Laboratory by the contractor at his cost and test reports be furnished the Engineer-in-
Charge who will property record the same.
8.3 Mortar Bedding : The mortar shall be of 1:4 proportion and shall be about 20 mm thick
average, laid on prepared sub-base of appropriate level and grade. The amount of water added while
preparing mortar shall be the minimum necessary to give sufficient plasticity for laying. Care shall be
taken in the preparation of the mortar to ensure that there are no hard lumps that would interfere with
even bedding of the tiles. Before spreading the mortar bed, the base shall be cleaned of all dirt, scum
or laitance and loose materials and then well wetted without forming any pools by the use of screed
battens to proper level of slope. The thickness of the bedding shall not be less than 20 mm. The tiles
shall be laid on the bedding mortar when it is still plastic but has become sufficiently stiff to offer a
fairly firm cushion for the tiles.
8.4 Fixing Tiles : The tiles before laying shall be soaked in water for at least 2 hours. Tiles which,
are fixed in the floor adjoining the wall shall be so arranged that the surface of the round edge tiles
shall correspond to the skirting or dado. Neat cement grout of honey like consistency shall be spread
over the bedding mortar just to cover the area that can be tiled within half an hour. Paste of cement
shall be applied to the back side of tiles in such a fashion that, when the tile is firmly placed in the
position, the paste spreads evenly on entire area of back side of the tile to ensure proper adhesion to
the bed. The edges of the tiles shall be smeared with neat white cement slurry in respect of white tiles
and coloured cement slurry, matching the coloured tiles in respected of coloured and fixed in this
grout one after the other, each tile being well pressed and gently tapped with a wooden mallet till it is
properly bedded and in level with the adjoining tiles. There shall be no hollows in bed or joints. The
joints shall be kept as close as possible and in straight lines. The joints between the tiles shall not
exceed 1.5 mm wide. The joints shall be grouted with slurry of white cement in respect of white tiles.
Contractor.
Executive Engineer(E&M).