SPL REPAIR TO ROOF TREATMENT AT BLDG NO A/R/24 TO A/R/32, A/J/24, A/J/25, A/R/13, A/R/15, A/J/15 (14 BLOCKS) AT KARAM SINGH ENCLAVE MD ACCN IN THE AOR OF AGE B/R-1 AT PMS

Dismantling/taking down old existing unserviceable cement plaster loose/unsound weaken cement concrete of any description and in any position from existing external/internal surfaces of RCC slab(Roof surface)/RCC beam/ RCC coloumn/ RCC lintels/RCC facia/RCC chajjas etc, (upto maximum height of 10 metres from natural ground level) with power driven pneumatic chisel and including removal of debris and washing down with water to remove dust, foreign items complete all as specified and directedcomplete all as specified and directed

M&L PCC(1:2:4) type B-0 (using 12.5mm graded crushed stone aggregate) as in roof kerbs or mud stop rounded complete all as spd and directed

M&L for 25 mm thick average PCC 1:2:4 type B-0 (using12.5 mm graded crushed stone aggregate) as in padding concrete on roof all as directed by Engineer- in-Charge.

M&L for rendering 10mm thick on fair faces on roof surfaces of concrete in Cement sand Mortar 1:3 mixing with WPC finished even and smooth without using extra cement and WPC as per complete all as specified and directed. Note :- WPC will measuered and paid separatly under relevant item of schedule.

M & L for providing water proofing treatment with a layer of APP based polymeric membrane, 3 mm thick (minimum), weighing not less than 3.60 kg/Sqm reinforced with polymer non woven fabric (weighing not less than 160 gm/ Sqm) shall be applied over one coat of cold bituminous primer @ 0.40 ltr/ Sqm ( membrane shall be laid using butane torch and sealing all joints etc, complete all as specified and directed .( Note: The overlaps shall be of minimum 75 mm on longitudinal direction and 100 mm on transverse direction) complete all as specified and directed.

M&L for one coat of aluminium paint over APP membrane complete all as specified and directed.

M&L for cement concrete M-15 (Nominal Mix) using 20 mm graded crushed stone aggregate as in roof padding mixed with approved Nanotechnology based Elastomeric Hydrophobic Powder/admixture (EHP) @ 1% by weight of cement complete all as specified and as shown on drawings.

M&L for Water Proofing treatment comprising of the following course of teatment and as directed a) Surface Preparation - Mild Chipping of the surface, Open the cracks by making ‘V’ groove, filling cracks with Nano Crack Filler. b) Providing and applying Nano Water Base Water Proof compound one coats after surface preparation using brush, not containing toxic materials like Pb, Cr, Zn; having defect-free nano-particles with inhibiting characteristics having bacteria killing rate above 98% and anti-fungal properties, with super-hydrophobic properties with contact angle of water more than 75degree , permeable type with elongation (stretch ability) of more than 300%, in a nano-structured self assembled dispersion system with VOC level of less than 1% , 60 micron DFT. c) Applytwo coat Nano carbon fiber based Nano Bond coat (base4: hardner 1) ratio d) Providing and applying Nano Barrier Coat Paint/ Nano Water Base Water Proof Paints 2 coats over screed concrete using brush, not containing toxic materials like Pb, Cr, Zn; having defect-free nano-particles with inhibiting characteristics having bacteria killing and anti-fungal properties, with super-hydrophobic properties with contact angle of water more than 750 , with elongation (stretch ability) of more than 300%, in a nano-structured self assembled dispersion system with VOC level of less than 1% , 60 micron DFT per coat.

Taking down cement plaster from brick or concrete surfaces of any description including racking out joints, hacking for key, scrubbing down with water etc complete all as directed.

M&L Rendering 15 mm thick cement plaster in CM 1:6 on fair faces of brick/concrete work surfaces finished fair and even complete all as specified and directed..