SPECIAL REPAIRS TO MNS MESS FOR ROOF TREATMENT P 160A AT INHS SANJIVANI AND PROVISION OF PCC APPROACH PATHWAYS TO INTEGRATED AUTOMATIC AVIATION MET SYSTEMS IAAMS AT INS GARUDA UNDER GE NW KOCHI

Taking down the existing roof treatment consisting of screed bed plaster tar felts etc including removal of PCC upto getting main roof slab and removal of dismantled materials complete all as specified and directed.

M&L for cement concrete 30mm thick type B-0, 1:2:4 (12.5 mm graded stone aggregate) as in padding on roof slab with WPC.complete all as specified and directed.

M&L for screed bed or bedding layer for roof with 10mm thick mortar in CM 1:3 (using WPC) complete all as specified and directed.

M&L for water proofing treatment in Seven course as specified below and as directed by Engineer-in-Charge. (i) Preparing roof surface by removing oil, dirt, laitance and other contaminents manually and injection of grout to construction joints and honey combs if any with cementitious pressure grouting with 40 Psi pump using Cobex 100 or equivalent @ 225gms mixed to 50Kg bag of cement including packing joints with fillets using polymer modified mortar. (ii)Apply a coat of oil based bituminous primer @ 200 gram / square metre on the prepared surface. (iii) Apply a coat of blown type bitumen grade 85/25 conforming to IS:702 heated to a working temperature of 180˚C and applied @ 1.20 Kg per square metre of the surface area. (iv) Provide and lay 4mm thick APP modified torch applied water proofing membrane weighing not less than 4.00 Kg per square meter reinforced with non woven polyester matt, weighing not less than 160gm/sqm having softening point not less than 140˚C, Longitudinal tensile strength not less than 650 N/5 CM, tear strength of 180N(Min), a static puncture resistance of 180, keeping a minimum of 10 cm over laps and 15cm end lap. (v) Apply a coat of blown type bitumen grade 85/25 conforming to IS:702 heated to a working temperature of 180 degree C and applied @ 1.20 Kg per square metre of the surface area. (vi) Provide and lay 4mm thick APP modified torch applied water proofing membrane weighing not less than 4.00 Kg per square meter reinforced with non woven polyester matt, weighing not less than 160gm/sqm having softening point not less than 140˚C, Longitudinal tensile strength not less than 650 N/5 CM, tear strength of 180N(Min), a static puncture resistance of 180, keeping a minimum of 10 cm over laps and 15cm end lap. (vii) Apply a coat of blown type bitumen grade 85/25 conforming to IS:702 heated to a working temperature of 180 degree C and applied @ 1.20 Kg per square metre of the surface area. (viii) Finishing surface with solar reflective bituminous aluminium paint, @ 100 gm/Sqm.

Demolition of precast PCC block masonry / brick work or stone / boulder masonry including all quions, arches, pillars, etc built in cement mortar or cement lime mortar complete all as specifiied and directed.

M&L for pre-cast cement concrete block masonry Type C1 1:3:6 with solid blocks, exc. 10 cm in width and setting in cement mortar in CM 1:6 complete all as specifiied and directed.

M&L for cement concrete 1:3:6 Type C-1 using 20mm graded stone aggregate as in coping including necessary formwork with WPC complete all as specifiied and directed.

M&L for rendering 15mm thick in CM 1:4 on brick/block masonary or concrete surfaces finished even and smooth without using extra cement with WPC complete all as specifiied and directed.

Supply only Liquid water proofing Compound complete all as specifiied and directed.

S&F 30mm thick bitumen filler board in expansion joints in walls/slabs/beams/columns complete all as specified and directed.

S&F 3mm thick, 30cm wide aluminum sheets with screws on the walls after sealing the expansion joint with joint sealing compound from any approved make complete all as specified and directed.

M&L for repair to expansion joint with following specifications: (i) Demolition and removal of masonary (stone/brick/PCC block or any floor finishes if any on joints in floor slabs) over the expansion joints & necessary chipping with machine, electrical chipper tools & removing debris from site and disposal at a location as directed by Engr-In-Charge. (ii) Apply a coat of oil based bituminous primer @ 200 gram / square metre on the prepared surface. Apply a coat of blown type bitumen grade 85/25 conforming to IS:702 heated to a working temperature of 180˚C and applied @ 1.20 Kg per square metre of the surface area. (iii) Provision of RCC (nominal mix Type B0 1:2:4 using 12.5mm aggregrate slab 50mm thick, 40cm wide with liquid WPC, inclusive of reinforcement (8mm thick bars @ 100mm C/C) 40cm wide over the expansion joint through out the length. Apply a coat of oil based bituminous primer @ 200 gram / square metre on the slab. Apply a coat of blown type bitumen grade 85/25 conforming to IS:702 heated to a working temperature of 180˚C and applied @ 1.20 Kg per square metre of the surface area. Provide and lay 4mm thick APP modified torch applied water proofing membrane weighing not less than 4.00 Kg per square meter reinforced with non woven polyester matt, weighing not less than 160gm/sqm having softening point not less than 140˚C, Longitudinal tensile strength not less than 650 N/5 CM, tear strength of 180N(Min), a static puncture resistance of 180, keeping a minimum of 10 cm over laps and 15cm end lap over the RCC slab above expansion joint. (iv) Provide and lay 4mm thick APP modified torch applied water proofing membrane weighing not less than 4.00 Kg per square meter reinforced with non woven polyester matt, weighing not less than 160gm/sqm having softening point not less than 140˚C, Longitudinal tensile strength not less than 650 N/5 CM, tear strength of 180N(Min), a static puncture resistance of 180, keeping a minimum of 10 cm over laps and 15cm end lap over the RCC mother slab on both sides expansion joint. (v) 10mm thick plaster in CM 1:3 with liquid water proofing compound. (vi) Apply a coat of blown type bitumen grade 85/25 conforming to IS:702 heated to a working temperature of 180˚C and applied @ 1.20 Kg per square metre of the surface area. Provide and lay 4mm thick APP modified torch applied water proofing membrane weighing not less than 4.00 Kg per square meter reinforced with non woven polyester matt, weighing not less than 160gm/sqm having softening point not less than 140˚C, Longitudinal tensile strength not less than 650 N/5 CM, tear strength of 180N(Min), a static puncture resistance of 180, keeping a minimum of 10 cm overlaps and 15cm end lap over RCC surface including 10mm thick plastering in CM 1:3 with liquid WPC.

Site clearence and surface dressing n.exc 15cm deep in soft/loose soil complete all as specified and directed.

Rolling and consolidating formation surfaces in cutting using power roller exc 8 tonne and not exc 12 tonne etc complete all as specified and directed.

M&L for moorum/red bajri filling in floor or pavings, laid in layers n.exc 15cm thick, spread, levelled including watering etc complete all as specified and directed.

Rolling and consolidating over moorum red bajri using power roller exc 8 tonne and not exc 12 tonne etc complete all as specified and directed.

M&L for hardcore of gauge exc. 63mm but n. exc 150mm, deposited, spread and levelled in layers n exc. 15cm thick, watered and rolled / rammed to a true surface complete all as specified and directed.

M&L for 100mm thick PCC 1:4:8 type D-2 (using 40mm graded crushed stone aggregate) as in sub base complete all as specified and directed.

M&L for coarse aggregate for granolithic floors graded from 12.5mm to 4.75mm under floors or in foundations spreading and levelling in layers n exc. 25 cm thick well ramming including watering as required complete all as specified and directed.

Material and labour for Machine pressed precast concrete interlocking paver block any shape and size as approved conforming to IS 15658-2006 of 60 mm thickness, M-35 Grade with grey cement and pigment, complete all as specified and directed.

M&L for PCC Type B-0, 1:2:4 (using 12.50mm graded stone aggregate) as in mass concrete around the machine pressed precast concrete interlocking paver block or chamferred on edges complete all as specified and directed.

Please Enable Macros to View BoQ information