Special repairs to Roof of Bldg No. P-315 (Sick Bay) at INS Valsura, Jamnagar

Amount

Taking down cement plaster of any description on PCC/stone surface/brick surfaces including racking out joints, hacking for key scrubbing down with water etc and removal of entire debris as ordered outside MoD land complete all as specified and as directed.

Demolition of cement concrete (un-reinforced) of any description and in any position not otherwise specifically provided for in this Schedule and removal of entire debris as ordered outside MoD land complete all as specified & as directed.

Demolition of reinforced cement concrete as in roofs, floors (other than ground floors), beams, staircases, landing, chajjas and similar suspended work (reinforcement cut as required to faciliate demolition) including removal of entire debris as ordered outside MoD land complete all as specified and as directed.

M&L for cement concrete 1:2:4 type B0, using 12.5mm graded crushed stone aggregate as in roof kerbs, mud stops, coved fillets, cills, steps, copings, kneelers, apex stones, bed plates, padding over roof and the like including weathering, slightly rounded, chamfered angle and throating as directed including use and waste of form work (straight or curved) all exposed surface of concrete finished fair complete all as specified & as directed.

Supply only Integral Water Proofing Compound (ISI Marked).

Material and labour for complete removal of existing water proofing treatment of any description or any other type of treatment over roof slab, parapets, chimney stacks, etc including cement plaster over RCC roof and cleaning the surface with wire brushes and washing with water, removing of insolvent materials and removing & depositing the debris, rubbish, etc outside MoD land, brushing neat cement slurry @ 3 Kg of cement per Sqm over the cleaned surface and provide 15mm thick screed bed/bedding layer/plaster in CM 1:3 mixed with integral Water Proofing Compound (WPC) as per manufacturer's instructions and finishing the surface even & smooth without using extra cement while the cement slurry is still green on RCC roof/parapet, provide oil bound bituminous primer @ 0.30 Kg/Sqm after bedding layer/plaster is cured with water for 7 days & completely dried, provide minimum 4mm thick APP based modified polymeric water proofing membrane weighing not less than 4.00 Kg/Sqm reinforced with non woven polyester matt fabric weighing not less than 160 gms/Sqm with over laps 100 mm longitudinal direction (side laps) and 150 mm on the transverse direction (end laps) by thermo-fused torch flame application method as per detailed procedure as directed and finally finishing the top surface with one finishing coat of bituminous aluminium paint complete all as specified and as directed. Notes: (i) WPC shall be measured & paid for separately as ‘Supply only’. (ii) The work shall be carried out only through manufacturer or their authorised applicator and contractor shall submit a written guarantee of the manufacturer/authorised applicator for the effectiveness of WPT for 10 years from the date of completion of contract. (iii) Care shall be taken to avoid wrinkle and air gaps while sticking membrane to the bitumen applied surface. (iv) The net area of water proofing treatment shall be measured without any extra allowance for laps.

M&L for rendering 15mm thick in cement mortar 1:4 on fair faces of brick masonry or concrete surfaces of walls, finished even & smooth without using extra cement complete all as specified and as directed.

M&L for preparing newly plastered surface of walls and applying two coats of 100% Premium acrylic emulsion paint having VOC less than 50 gm/litre and UV resistance as per IS 15489:2004, Alkali & fungal resistance, dirt resistance exterior paint of shade as approved by Engineer-in-Charge (Company Depot Tinted) with silicon additives @ 1.43 litre/ 10 sqm over and including priming coat of exterior primer applied @ 0.90 litre/ 10 sqm as per manufacturer's instructions complete all as specified and as directed.

Dismantling carefully and taking up or down existing unserviceable/serviceable steel water tubing and connections of 15mm bore complete all as specified and as directed.

Fixing/Laying only, jointing and testing old serviceable galvanized steel water tubing medium grade of 15mm bore obtained serviceable vide serial item No. 9 here-in-before including cleaning the pipe from inside & outside properly including rust & mud removal, with & including new fittings and fixed to walls and ceilings or laid in floors in new or old position complete all as specified and as directed. Note : The quoted rate shall deemed to include new GI fittings (ISI marked). Old fittings shall not be used.

M&L for galvanized steel water tubing medium grade of 15mm bore (ISI marked) with & including all fittings, fixed to walls and ceilings or laid in floors, complete all as specified and as directed.

Dismantling carefully and taking up or down existing unserviceable/serviceable steel water tubing and connections of 20mm bore complete all as specified and as directed.

Fixing/Laying only, jointing and testing old serviceable galvanized steel water tubing medium grade of 20mm bore obtained serviceable vide serial item No. 12 here-in-before including cleaning the pipe from inside & outside properly including rust & mud removal, with & including new fittings and fixed to walls and ceilings or laid in floors in new or old position complete all as specified and as directed. Note : The quoted rate shall deemed to include new GI fittings (ISI marked). Old fittings shall not be used.

M&L for galvanized steel water tubing medium grade of 20mm bore (ISI marked) with & including all fittings, fixed to walls and ceilings or laid in floors, complete all as specified and as directed.

Dismantling carefully and taking up or down existing unserviceable/serviceable steel water tubing and connections of 40mm bore complete all as specified and as directed.

Fixing/Laying only, jointing and testing old serviceable galvanized steel water tubing medium grade of 40mm bore obtained serviceable vide serial item No. 15 here-in-before including cleaning the pipe from inside & outside properly including rust & mud removal, with & including new fittings and fixed to walls and ceilings or laid in floors in new or old position complete all as specified and as directed. Note : The quoted rate shall deemed to include new GI fittings (ISI marked). Old fittings shall not be used.

M&L for galvanized steel water tubing medium grade of 40mm bore (ISI marked) with & including all fittings, fixed to walls and ceilings or laid in floors, complete all as specified and as directed.

S&F in repairs 110mm bore PVC (SWR) pipes single socketed in any length with rubber ring joints / solvent cement joints laid in floors/ fixed to walls, complete all as specified & as directed.

S&F in repairs 110 mm bore PVC (SWR) bends any radius including jointing the same with solvent cement complete all as specified & as directed.

Disconnecting existing PVC water tanks fixed in any description of capacity 500 ltrs to 1000 ltrs, setting aside (or lowering if required) for repairs, cleaning and removing scale and dirts etc from tanks and from mouths of circulating pipes etc and hoisting as ordered, including reconnecting and re-fixing in same position and testing on completion complete all as directed.

M&L for application of high build polymer modified cement mortar (1:3) mixed with 6 ltrs SBR latex per bag of cement {Compressive strength after 28 days ≥ 40 N/sqmm (According to ASTM C109)} in small patch work over column/ beams/ ceilings / walls surfaces 20 to 30mm thick in two layers over a coat of bonding agent like Nitobond SBR (1 ltr SBR + 3 Kg cement) applied as per manufacturer’s instructions for height upto 15 metre from average ground level complete all as directed by the Engineer-in-Charge. Note :- SBR latex chemical shall be measured and paid for separately as ‘Supply only’.

Supply only SBR latex chemical of Make Krishna Conchem / Dr. Fixit / SIKA / Fosroc / Pidilite / BASF / Sunanda / Asian as approved by GE.

Cutting/ Chipping/ Dismantling of spall / loose damaged concrete from soffits of RCC slab / other RCC structural members in a controlled manner carefully by low impact high frequency hammer or by manual chipping without damaging the existing concrete upto good parent concrete to expose the existing reinforcement (direct hammering should be avoided) average thickness of 50-75 mm including cleaning the exposed surfaces by water jet pressure pump at 4 to 5 kg/ Sqcm pressure to remove chlorides and loose particles, air drying the surface etc for further treatment with & including all necessary tools, safety measures like helmet, safety belt, adequate labour insurance, scaffolding, etc. for height upto 15 metre from average ground level under the supervision of qualified supervisor (the damaged ceiling/ concrete shall only be measured) complete all as specified and as directed.

M&L for cleaning existing reinforcement bars with wire brush / rotary wire brush making the surface free from cement skin, loose particles, dirt, etc and applying rust remover/converter (Rebaklense RR of M/s Fosroc / Amandur of GK technocom or equivalent of Dr. Fixit / SIKA / Pidilite) over the corroded reinforcement bars where ever micro concreting is required and cleaning the same after application with & including all necessary tools, scaffolding, etc. for height upto 15 metre from average ground level complete all as specified and as directed.

M&L for non shrink cementitious micro concrete (‘SikaRep Microcrete-4’ of Sika / ‘Renderoc RG’ of Fosroc or equivalent of Dr. Fixit) meeting ASTM C1107 standard in average thickness 50-75mm and having minimum compressive strength 50 N/sqmm after 28 days as per ASTM C109, for repair to column, beam, slab, etc, complete all as per manufacturer’s instructions cost inclusive of scaffolding, shuttering, formwork, curing etc. for height upto 15 metre from average ground level complete all as directed. Notes : (i) Quoted rate shall deemed to be inclusive of form work, scaffolding, safety belt, etc. (ii) Reinforcement shall be measured and paid for separately.

M&L for providing additional reinforcement TMT bars in place of more than 1/3 corroded reinforcement bars including cutting, bending, placing and fixing in position using 'Lokfix' of M/S Fosroc or equivalent of Dr. Fixit / SIKA / Pidilite with & including all necessary tools, scaffolding, etc. for height upto 15 metre from average ground level complete all as specified and as directed. Note : Weight of TMT bars shall only be measured for payment purpose.

Taking down carefully existing solar panel of any type/ capacity installed on roof top with supporting iron frame work/brackets for mounting, all type of cables, piping, PCC foundation blocks, earthing strip and all connected accessories and refixing the same after carrying out roof treatment work on same location including washing/ cleaning of plates and necessary connection from panel in existing format and testing after installation, complete all as directed. Note : Replacement of existing unserviceable solar panel connector, cable and PCC foundation blocks shall be measured & paid for separately under relevant items of this Schedule.

Taking down carefully existing serviceable earthing strip of any type/ size, keep in the safe place as directed by EIC and refixing the same in existing / different location as ordered after repair work is carried out in all respects complete all as directed.

M&L for galvanised iron earth strip 32 x 6mm buried in ground / fixed on wall including taking out existing GI strip complete all as specified and as directed.

M&L for precast PCC block of size 300 x 300 x 300mm (in PCC 1:3:6 type C1) with plain fair faces and setting in cement mortar 1:4 with suitable depth grouted open channels on bottom side for mounting angle iron frame of solar panel complete all as specified and as directed.

S&F in repairs solar DC TUV copper cable of 4 sqmm, single core fixed in & including 20 mm dia rigid non-metallic PVC conduit (heavy duty, ISI marked) on wall/ ceiling as per site requirement complete all as directed.

S&F in repairs Solar Panel connector as per site requirement complete all as directed by Engineer-in-Charge.

M&L for Earthing with & including galvanised mild steel earth plate electrode of size 60 cm x 60 cm x 6 mm thick buried vertically in ground (earth pit not less than 2.25 m below normal ground level) with top edge of the earth plate at a depth not less than 1.5 m below ground level, the earth electrode surrounded by adequate quantity of charcoal dust and salt to a packed thickness of 15 cm on all sides, connected to & including galvanized mild steel strip 32x6 mm as earth lead, including nuts, bolts, check nuts & washers of galvanized iron or steel and riveted/welded to earth plate at one end and other end of strip connected to Panel / transformer / GOD / equipment body / test point with two Nos nuts bolts or welding with steel structure, GI earth strip encased in and including 40mm bore GI light grade pipe with all fittings from upper edges of earth plate upto 7.5 metre above ground level fixed with and including 25x3mm flat iron clamps, bolts, nuts and washer and also including providing watering pipe 20mm bore GI pipe medium grade from earth pit to top of electrode and including funnel, wire mesh, copper lugs etc complete with earth pit in PCC 1:3:6 type C1 using 20mm graded crushed stone aggregate and 40mm thick RCC (1:2:4 type B1) cover complete all as specified and shown in electrical plate No 3 of SSR Part-I including necessary excavation and earthwork in any type of soil, returning, filling in approved soil and disposal of surplus soil to a distance not exc 50m complete all as specified and as directed including dismantling & taking out old existing unserviceable earthing of any type. Note : PCC chamber shall be constructed at least 1.5 mtr away from the earth electrode and pipe for watering shall be provided in slanting manner.

M/S JAYCONSTRUCTION CO

aarti construction

Magnus Enterprise

JAMNAGAR ELECTRIC AND MACHINERY CO

Amar Constructions