CA NO GE(N)AMB-71/2025-26 PROVN OF ALUMINUM DOOR AND UPGRADATION OF DH OF BLDG NO HT-6 HAIG LINE AND ADDN/ALTN TO MD ACCN AT JOGINDER SINGH LINES OF AGE B/R-II OF GE (NORTH) AMBALA CANTT

Schedule 'A' Part-I (B/R itmes) Demolition of mud in roofs, any thickness, including plastering and leeping (whether full thickness removed or only a part thereof) and removing old tar felt/APP, all loose dirt, cement plaster, cleaning the concrete surface including removal & cleaning of vegetation, fungus, moss small trees etc from the roof top with wire brush and washing the roof surface with water to remove all dirt, dust, mud etc complete all as specified and directed.

Material & Labour cutting grooves in brick wall, for inserting App membrane, 75mm wide and 65mm deep and shaping horizontal face of groove with cement mortar 1:3 or PCC (1:2:4) type B-0 (using 12.5mm graded stone aggregate) , ,complete all as specified and directed.

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

Material & Labour PCC (1:2:4) type B0 using 12.50 mm graded stone aggregate as in mass concrete over roof as in padding incl cement slurry @ 3Kg/Per sqm over old RCC surface of roof surface finished even & smooth without using extra cement. ,complete all as specified and as directed.

Material & Labour for providing and laying 3mm thick APP (atactic polypropylene 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 consisting of a coat bituminous primer @ 0.40 litre /Sqm by the same membrane manufactures of density 0.87 to 0.89 kg/ltr at 25 degree centegrate temperature 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 as per standred practice as per manufacture's instructions. The vital physical and chemical parameters of the membrane shell be under :– (i) Joint strength in longitudinal and transverse direction at 23 degree centegrate at 650/ 450 N /5 cms (ii) Tear strength in longitudinal and transverse direction at 300/250N/5 cms. Softing point of membrane not less then 150 degree centegrate when tested in accordance with ASTM (d–5147) (iii) The laying of membrane shell be got down through the authorised applicator of manufactures of membrane only , complete, all as specified and as directed. (iv) The work shall be carriout at a height upto 12 metre.

Supply and fixing for cement concrete tiles 30cm x 30cm x 20mm thick, machine pressed, set jointed and laid in neat cement slurry on roofs, laid on and including 15 mm thick in cement mortar and joints and grouted and pointed flush in cement mortar (1:3) mixed with 5% crude oil by weight of cement complete all as specified and directed.

Dismentling of brick work built in cement mortar or cement lime mortar including all quoins, arches, pillar etc but excluding ashlar facing, dressed stone work and precast concrete articles ,complete all as specified and directed.

Material & Labour brick work with sub class 'B' old size bricks straight or curved on plan exceeding 6 metre mean radius built in cement mortar 1:6 ,complete all as specified and directed.

Material & Labour brick work with sub class -B bricks, in half brick thick walls, built in cement moratr (1:4) straight or curved on plan to any radius ,complete all as specified and directed.

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