GE(SOUTH)/AMB 64 2026 2027 SPECIAL REPAIR TO ROOF TREATMENT OF COOK HOUSE OF BLDG NO P 171 (A TO E) UNDER GE (SOUTH) AMBALA CANTT

Dismantling of Brick tiles or terracing tiles, single layer on roofs complete all as specified and directed by Engineer-in-Charge.

Demolition of Mud in roofs, any thickness, including plastering and leeping (whether full thickness removed or only a part thereof complete all as specified and directed by Engineer-in-Charge.

Material and labour for plain cement concrete 1:2:4 type B-0, (using 12.5 mm graded mechanically crushed stone aggregates) as in padding to roof to maintain the required slope and finished the surface even and smooth without using extra cement, complete all as specified and directed by Engineer-in-Charge.

Supply only liquid water proofing compond complete all as specified and directed by Engineer-in-Charge.

Material and labour for plain, cement concrete type B-0, 1:2:4 (using 12.5 mm graded stone aggregate) as in, levelling course, roof kerbs or mud stops, rounded or chamfered on edges etc complete all as specified and directed by Engineer-in-Charge.

Material and labour for 3mm thick APP (atactic polyproylene polymer) modified prefabricated five layer weight not less than 3.60 kg/sqm water proofing membrane black finish reinforced with non woven polyster matt and applying on top of it one coat of hot straight run bitumen grade 30/40 (Grade S-35) conforming to IS-73 at the rate of 1.2 kg/sqm, make as approved consisting of a coat bituminous primer @ 0.40 ltr/sqm by the same membrane manufactures of dercity 0.87 ro 0.89 kg/ltr at 25'C temprature and viscosity 70-160 cps over the primer coat with overlap of 100mm at the side and 150mm at the end , the layer membrane shall be laid using butane gas torch and sealing all joints etc after preparing the surface complete all as per standered parctice as per manufacture's instructions The vital physical and chemical parameters of the membrane shall be under:- (i) Joint strength in longitudinal and transverse direction at 23'c at 650/450 N/5cms (ii) Tear strength in longitudinal and transverse direction at 300/250N/5 cms. Softing point of membrane nor less then 150'c when tested in according with ASTM (d-5147) (iii) The laying if membrane shall be got down through the authriosed applicator or manufactures of membrane only including dismantling old APP membrane complete all as specified and directed by Engineer-in-Charge.

Material and labour for precast PCC plain factory made tiles, 22 mm thick of size 250 mm x 250 mm, machine pressed and cut polished and set jointed and pointed in neat cement slurry and fabricated using grey cement and pigments. over and including 15 mm thick cement mortar (1:4) bedding joints grouted flush in cement mortar (1:3) over roof surfaces complete all as specified and directed by Engineer-in-Charge.

Taking down cement plaster on brick wall/concrete surfaces etc including racking out joints hacking for key scrubing down with water etc of any thickness including dado any description complete all as specified and directed by Engineer-in-Charge.

Material and labour for ready mix plaster of average thickness 15mm on brick work or concrete surfaces finished even and smooth including necessary scaffolding complete as per manufacture's instruction and complete all as specified and directed by Engineer-in-Charge.

Material and labour for preparation of new plastered surfaces of wall and applying two coats of cement base paint over a coat of alkeline resistant primer on walls complete all as specified and directed by Engineer-in-Charge.