Providing and laying APP matt by replacing the cyclone damaged old matt on roof of TAX building, Telephone Bhawan Compound, Cuttack (3rd call).

Amount

Demolishing cement concrete manually/ by mechanical means including disposal of material within 50 metres lead as per direction of Engineer - in - charge.

Nominal concrete 1:3:6 or richer mix (i/c equivalent design mix)

Demolishing old plaster of thickness about 20 mm by mechanical means over the terrace roof and cleaning the surface including disposal of rubbish within 50 metre lead

Disposal of building rubbish / malba / similar unserviceable, dismantled or waste materials by mechanical means, including loading, transporting, unloading to approved municipal dumping ground or as approved by Engineer-in-charge, beyond 50 m initial lead, for all leads including all lifts involved.

Removing old damaged bitumen felt/ APP matt from roof including cleaning the roof, disposal of the same outside the municipal area all complete for all leads and lifts as per direction of Engineer-in-charge.

Providing and laying cement concrete in retaining walls, return walls, walls (any thickness) including attached pilasters, columns, piers, abutments, pillars, posts, struts, buttresses, string or lacing courses, parapets, coping, bed blocks, anchor blocks, plain window sills, fillets, sunken floor, etc., up to floor five level, excluding the cost of centering, shuttering and finishing :

1:2:4 (1 Cement : 2 coarse sand : 4 graded stone aggregate 20 mm nominal size)

Grading roof for water proofing treatment with

Cement concrete 1:2:4 (1 cement : 2 coarse sand : 4 graded stone aggregate 10 mm nominal size)

Providing and laying APP (Atactic Polypropylene Polymer) modified prefabricated five layer 3mm thick water proofing membrane, black finished reinforced with non-woven polyester matt consisting of a coat of bitumen primer for bitumen membrane @ 0.40 ltr/sqm. by the same membrane manufacture of density at 25°C, 0.87-0.89 kg/ltr and viscosity 70-160 cps. Over the primer coat the layer of membrane shall be laid using Butane Torch and sealing all joints etc., and preparing the surface complete. The vital physical and chemical parameters of the membrane shall be as under : Joint strength in longitudinal and transverse direction at 23°C as 650/450N/5cm. Tear strength in longitudinal and transverse direction as 300/250N. Softening point of membrane not less than 150°C. Cold flexibility shall be upto -2°C when tested in accordance with ASTM, D - 5147. The laying of membrane shall be got done through the authorised applicator of the manufacturer of membrane :

3 mm thick

Extra for covering top of membrane with Geotextile, 120gsm non woven, 100% polyester of thickness 1 to 1.25mm bonded to the membrane with intermittent touch by heating the membrane by Butane Torch as per manufactures recommendation.

15 mm cement plaster on rough side of single or half brick wall of mix :

1:4 (1 cement: 4 coarse sand)

Repairs to plaster of thickness 12 mm to 20 mm in patches of area 2.5 sq. meters and under, including cutting the patch in proper shape, raking out joints and preparing and plastering the surface of the walls complete, including disposal of rubbish to the dumping ground , all complete as per directions of Engineer-In-Charge.

With cement mortar 1:4 (1cement: 4 coarse sand).

Supplying and mixing water proofing liquid in cement mortar/ cement concrete of Pidilite LW+/ Sika Latex or equivalent conforming to IS:2645 in proportion as per manufacturer's recommendation including all labour complete as per direction of Engineer in charge.

Removing, cleaning and refixing of chocked serviceable GI/ PVC pipes of any size after necessary repairs and removal of chockage, waste materials including necessary fittings and scaffolding all complete as per direction of Engineer in charge.

Making chases up to 7.5x7.5 cm in walls including making good with cement concrete 1:2:4 and plastering, finishing with matching surface after inserting bitumen felt, APP matt, housing G.I. pipe etc complete as per direction of Engineer in charge.