REPAIR TO ROOFS TO ARREST LEAKAGE AND SEEPAGE IN OTM AND MARRIED ACCOMODATIONS IN THE AREA OF AGE BR- I UNDER GE EAST DELHI CANTT-10

Amount

Demolition of cement concrete in ground floor and pavings not exceeding 15cm thickness (below or above ground level), complete all as specified and as directed.

Demolition of brick work built in cement mortar including all quoins, arches, pillars etc., but excluding ashlar facings, complete all as specified and as directed.

Demolition of bricks (laid flat or on edge), brick tiles in f;loors, roofs, channels, kerbs, aprons etc., (each layer) laid, bedded and pointed in any mortar, complete all as specified and as directed.

Taking down cement plaster on brick or stone walls, including racking out joints, hacking for key, scrubbing down with water etc., to receive new plaster, complete all as specified and as directed.

Dismantling scantlings 40Sqcm and over in section, fixed in any position, unframed work, complete all as specified and as directed.

Taking down PVC/CI rain water pipes (any size and pattern) including all fittings, head shoes, bends, swan necks, etc., and removal off the site, complete all as specified and as directed.

Taking up or down steel tubing and connections 20mm dia including cleaning for refixing and removal off the site, complete all as specified and as directed.

Dismantling existing water tanks of capacity exc 500 & not exceeding 1000 ltrs lowering from its position and removal to store, complete all as specified and as directed.

Excavation in post holes (or similar holes) in soft/loose soil each not exceeding 0.5 cum getting out, returning, filling in ramming earth or broken rubble in layers not exceeding 25 cm, watering and removing of surplus soil to a distance not exc 50m and making good surfaces, complete all as specified and as directed.

Cutting out cracks to V-section in existing roofs or terracing surfaces, cleaning out and filling solidly with a hot mixture of bitumen and clean dry sand 1:1 (by weight), complete all as specified and as directed.

PCC 1:2:4 type B-1 using 20mm graded crushed stone aggregate as in roof kerb, mud stops etc., and similar type of works including weathering, slightly rounded or chamfered angles, complete all as specified and as directed.

PCC 1:3:6 type C-1 using 20 mm graded crushed stone aggregate as in PCC padding/ base of OHT over roof, complete all as specified and as directed.

Brick work with sub class “B” bricks straight or curved on plan exceeding 6mtr mean radius built in cement mortar 1:6 using old size bricks, complete all as specified and as directed.

Brick work with sub class “B” bricks straight or curved on plan built to any radius in cement mortar 1:4 using old size bricks in half brick walls, complete all as specified and as directed.

40mm thick Brick tiles, laid flat on water proofing membrane, jointed and pointed in cement mortar 1:3 mixed with 5% crude oil by weight of cement, complete all as specified and as directed.

All as per description of Stl item No.- 15 here-in-before but except tiles, complete all as specified and as directed.

Cutting holes in brick walls not exc half brick, built in cement mortar for inserting hold fasts and making good disturbed prtion in cement mortar 1:3 or cement concrete 1:2:4 Type B-1 (using 20mm graded crushed stone aggregate), complete all as specified and as directed.

Rolled sections as in main and cross beams, hip and jack rafters; purlins where connected to common rafters and running rails and guides for sliding doors; fixed with angle cleats or other connecting plates to Fe-290 (Gde E- 165), complete all as specified and as directed.

Pre-Painted galvalume aluminium zinc coating GI based corrugated steel sheet 0.50 mm thick of an colour having tensile strength of 550 Mpa as in roof covering /cladding to wall, fixed with self tapping screws including dismantling Asbestos cement (corrugated, semi corrugated, etc.) sheets in roof coverings, fixed in repairs, complete all as specified and as directed.

Rendering 15mm thick on fair faces of brick work or concrete surfaces in cement mortar 1:4, finished even and fair without using extra cement, complete all as specified and as directed.

Preparing newly plastered surfaces of walls and applying two coats of cement based paint, complete all as specified and as directed.

Taking down cement plaster / duster bed PCC of Column, chajja, Parapets of roof, facia, drops etc and making good with cement plaster 10mm thick in CM 1:3 with PCC 1:2:4, (average thickness of PCC 25mm) as required, brushing neat cement slurry with 3.0kg of cement per sq. metre including necessary form work and scaffolding upto 3rd floor including fixing of wire netting where required to match the existing surfaces, complete all as specified and as directed.

Rendering 10mm thick on concrete surfaces in cement mortar 1:4 mixed with water proofing compound finished even and fair without using extra cement, complete all as specified and as directed. (Note : Water proofing compound shall be measured and separately).

Supply only liquid water proofing compound and mixed as per manufacturer's instructions, complete all as specified and as directed.

Wire brushing and cleaning top surface of tiles, cement concrete, including flashings and junction of parapets including taking out grass roots/vegetation etc., from existing roof surfaces and cleaning the surface after drying from dirt, mortar, dust mortar buds, algae and all other foreign matter and brushed and wiped, complete all as specified and as directed.

Applying evenly a tack coat of industrial bitumen 85/[email protected]/Sqm over a coat of bituminous primer applied @ 0.5Ltrs/Sqm to the cleaned concrete surfaces (before laying APP under Srl item 27 here-under), complete all as specified and as directed.

Applying APP based polymeric mambrane minimum weight 3.6kg/Sqm and of minimum thickness 3mm, reiforced with polyster non woven fabric ( weight not less than 150gm/Sqm ). APP membrane will be laid across the slope from lowest line of roof towards ridge with over laps of 75mm in length side and 100mm on the width side of membrane bonded with hot blown bitumen. Over the APP membrane apply semi hot blown 85/25 penetration grade bitumen conforming to IS- 702 @ 1.2 Kg/Sqm and blinded with fine sand in dry condition @ 0.50Kg/Sqm dusted over the bitumen coat, complete all as specified and as directed.

Cement concrete tiles, factory made, Premium quality 250mm x 250mm x 20mm thick, set and jointed in neat cement slurry and pointed flush with cement mortar 1:3 mixed with 5% crude oil by weight of cement laid over 15 mm thick screed bed or bedding layer in cement mortar 1:4, laid over APP treatment, complete all as specified and as directed.

Bitumastic gola of size 80mm x 80mm with 85/25 bitumen mixed with coarse sand in the ratio 1:3 by weight to be provided at junction of roofs to vertical surfaces, complete all as specified and as directed.

Cutting chases, pinning in, making good to facing where required and pointing in cement mortar1:3 in brick or stone wall , cutting not exc 10cm girth, complete all as specified and as directed.

Preparation of external wall and ceiling surface by complete removal of existing treatment of walls for upto 4 storey buildings by mechanised sander of Asian paints or its equivalent as per List of makes viz Xpress sanding machine having suction vaccum bag or by manual scrapping tools where mechanical removal is not possible and applying a layer of 1mm thick wall care putty, again sand papering thus making surface smooth and applying two coats of weather proof exterior acrylic emulsion paint premium quality over a coat of primer on surfaces of walls, complete all as specified and as directed by Engr- in-charge.

Preparation of new steel surfaces of any description over 10cm width or girth and applying two coats of synthetic enamel paint over a coat of red oxide, complete all as specified.

20mm bore GI tubing (medium grade) with all fittings and fixed complete to walls and ceiling or laid in floors/roofs, complete all as specified and as directed.

PVC(SWR) pipes 110mm bore size single socketed, in any length with rubber ring joints,laid in trenches or in floors or walls including fixing clamps, complete all as specified and as directed.

PVC (SWR) bend of 110mm bore any radius, complete all as specified and as directed.

Rotational moulded polyethene three layers 1000 Litres capacity hoisted and fixed in position, 20mm bore ball valve high pressure of PTMT with epoxy coated aluminium rod & high density plastic ball, screwed with pipe and fixed, complete all as specified and as directed.

20mm bore ball valves high pressure of PTMT with epoxy coated aluminium rod & high-density plastic ball, screwed for iron pipe and fixed minimum weight -210gms, fixed in repairs, complete all as specified and as directed.

Gun metal globe or gate valve screwed down high pressure with iron wheel head, screwed both ends for iron pipe 20mm bore, fixed in repairs, complete all as specified and as directed.

Disconnecting existing tanks of capacity exceeding 500 Ltrs and not exceeding 1000 ltrs, setting aside (or lowering if required) for repairs, cleaning etc., hoisting (if required),fixing in position and reconnecting, complete all as specified and as directed.

Cutting shrubs wild gorwth/trees not exceeding 30cm girth and removing complete vegetation growth from walls including taking out roots from roof/brick work or concrete surfaces and making good the distrubed surfaces with PCC 1:2:4 type B-0, using 12.5mm graded crushed stone aggregate and disposing the rubbish from the site (MOD land) for a block of eleven multistoried flats, complete all as specified and as directed by the Engineer-in-Charge.

NOTE:- For minimum fair wages, other than Srl item No. 09, EPF and payment to labour employed, refer Sch A Note No-16,17 and Special Condition No 5 & 21.2 of this tender. Contractor must produce all the relevent record such as payment made to labour, EPF etc at the time of payment of RARs/Final bill. No payment will be released to contrator without producing the proper record.

NOTE:- Irrespective of whatever specified elsewhere in tender documents, all the debris/waste materials produced out of above mentioned work shall be removed out of Cantonement land and disposed off at locations notified by the Delhi Cantonment Board for disposal of waste building materials within NCR area, without any extra cost to Department under own arrangement of contractors. The rates quoted by the contractors against the items catered here-in-above in the BOQ are inclusive of said provision.

Som Nath Kakkar

M/s Shubh Enterprises

M/s Durga Traders

S GOURAV PRAKASH ENTERPRISES

imran construction company

R. S. Associates

V M CONSTRUCTION

The new hut furnitures