SPECIAL REPAIRS TO ROOF TREATMENT AND SEWAGE LINE OF KV SCHOOL AT INS MANDOVI UNDER GE (P) NAVY MANDOVI

Amount

Dismantling/ taking down existing hessain base felt or clay tiles or any other existing water proofing treatment from roof/ chajja including cement plaster, cleaning the surface and removing the dismantled debris to a distance exceeding 1.50 km but not exc 5 km to outside the MD land and laying water proofing membrane treatment using 4mm thick APP modified membrane consisting five layer membranes, weighing not less than 4.00kg/sqm laid over a coat of cold bituminous primer @ 0.40 kg/sqm by torching the membrane and sealing the overlap by 100mm length side and 150mm width side all as per manufacturer's instructions including joints and changes in direction be curved with 10mm thick cement mortar 1:3 mixed with SBR latex @ 2.00ml/bag of cement, curved well before laying of membrane, including applying two coats of solar reflective bituminous aluminium paint @ 0.10 litre/sqm complete all as specified and directed. Note: (i) Irrespective of lap, the net covered area will only be measured for payment. (ii) Quoted rate shall be deemed to be inclusive of bituminous primer, APP membrane, solar reflective bituminous aluminium paint and SBR latex.

M & L for providing 25 mm thick cement concrete 1:2:4 type B0 (using 12.5mm graded stone aggregate) on concrete surface over top of RCC roof using waterproofing compound as per manufacturer's instruction finished even and fair using extra cement complete all as specified and directed. Note: Quoted rate shall be deemed to be inclusive of cost of waterproofing compound.

M & L for chipping, removing carefully concrete work using low impact hammer, breaking without damaging the structure, cleaning and disposing debris outside the premises complete all as specified and directed. Note: Hard concrete shall not be removed by force.

S & F wire netting of stainless steel wire 1.4 mm dia (size of mesh 25 mm) fixed with tinned tacks of stainless steel wire staples, including necessary frame of steel complete all as specified and directed.

M & L for rendering 10 mm thick in cement mortar 1:6 on fair faces of brick work or concrete surfaces finished even and smooth without using extra cement complete all as specified and directed.

M & L for injecting cement slurry grout in the ratio 1:2 (cement : water) and super plasticiser (Supercom-100) at the rate 250 ml/50 kg, mixed by using mechanical mixer stirring continuously; injected by means of pump at a pressure of 0.5 kg/sqcm till grout mix flows out from the nozzles indicating complete filling of grout in the drilled holes for repairs to walls and slabs; as per manufacturer's instructions complete all as specified and directed.

M & L for providing TMT bars mild steel bars 10 mm dia and over, cut to length, bent to shape required, including cranking, bending spirally for hooping for columns, hooking ends and binding with and including mild steel wire (annealed) not less than 0.9mm dia or securing with clips for stiffner of chainlink fencing complete all as specified and directed.

M & L for providing cement concrete 1:2:4 type B0, using 12.5mm graded crushed stone aggregate in roof kerbs or mud stops, rounded or chamfered on edges on concrete surfaces over top of RCC chajjas using waterproofing compound as per manufacturer's instruction complete all as specified and directed. Note: Quoted rate shall be deemed to be inclusive of cost of waterproofing compound.

M & L for cleaning surfaces and applying evenly a tack coat of industrial bitumen 85/25 at the rate of 1.2 kg per sq.m complete all as specified and directed.

S & F 1000 litre capacity rotational moulded polyethylene water storage tanks (cylindrical, vertical with closed top) hoisted and fixed in position complete all as specified and directed.

S & F ball valves, high pressure of PTMT with epoxy coated aluminium rod & high density plastic ball screwed for iron pipe of 25 mm dia bore complete all as specified and directed. (minimum weight 25 mm - 455 gm)

S & F ball valves to CPVC pipe of 25 mm dia bore complete all as specified and directed.

S & F tank adaptor to CPVC pipe of 25 mm dia bore complete all as specified and directed.

Taking down steel tubing and connections of 20 mm dia bore complete all as specified and directed.

Supplying and laying of CPVC pipes of 25 mm outer dia, SDR 11 & plain CPVC SDR 11 fittings on walls/ ceiling or laying in floors complete all as specified and directed.

Removing dismantled/ demolished building materials etc to a distance upto 5 to 10 km beyond the lead including the rates, including loading, unloading and taking outside INS mandovi area as per local disposal laws in vogue complete all as specified and directed. Note: Contractor shall identify area/location in civil area for disposal of debris.

M/S NAGINENI RANGA RAO (BID ID -2985399)

Ramesh Enterprises (BID ID -2985608)

SACHINENTERPRISES (BID ID -2980432)

N VENKATESWARLU (BID ID -2986253)