ADDN/ALTN TO DSAs AND STATION SECURITY SECTION AT AF STN HALWARA

Demolition of stone slab and tiles of any description or any thickness in floor or apron etc laid bedded in cement morter, complete all as specified and directed.

M&L for machine cut kota stone slab flooring 18-20 mm thick over and including screed bed or bedding layer of mortar 15 mm thick in cement mortar 1:4 for laying floor finishes and jointed with grey cement slurry mixed with pigment to match the shade of the slab including rubbing and polishing, complete all as specified and directed.

M&L for Kota stone slab 18-20 mm thick in riser of steps, skirting, dado and pillar laid over and including 10 mm thick rendering 1:4 on brick work or concrete surfaces, complete all as specified and directed.

M&L for 25 mm thick cement concrete type B-0, 1:2:4 (12.5 mm graded stone aggregate) as in floor etc and finishing cement concrete, complete all as specified and directed.

Demolition of cement concrete of any description and in any position not otherwise specifically provided, complete all as specified and directed.

Material and labour for roughening surfaces of old concrete floor by picking, sweeping, clean and washing down with water to remove dust etc and brushing neat cement slurry with 3.0 kg of cement per square metre, complete all as specified and directed.

Material and labour for providing 50mm thick cement concrete type B-1, (1:2:4) (using 20mm graded stone aggregate) as in padding to be provided for slope etc, complete all as specified and directed.

Material and labour for 10mm thick screed bed in cement mortar 1:4 with water proofing compound as per manufacturer's instruction on brick work or concrete surfaces finished even and smooth without using extra cement complete all specified and as directed. Note :- Water proofing compound shall be measured and paid under respective item.

Supply only integral water proofing compound, complete all specified and as directed.

Material and labour for preparation of roof top surfaces, providing and applying single component elastic cold applied polyurethene modified acrylic roofing system, co-elastic technology (CET) based on modified polyurethene and fully fibre reinforced, having Sun Reflectivity index (SR) of 106 on top of concrete roof surfaces. All cracks upto 3 mm at corner joints, channel and parapets should be treated with crack seal. Applying three coats including one coat of primer of Shali Urethne BTD/ Sikalastic 560/ smart care damp proof ultra having coverage @ min 0.75kg/m2 and dilution upto 10% and laying reinforced fibre net and applying two coats of of shaliurethene BTD/Sikalastic 560/smart care damp proof ultra @ total consupmtion 2 kg/m2 in two coats for maintaining minimum dry film thickness 1.5mm and elongation at break of free film of approx 350%. The materials shall be applied with brush or roller, complete in all respect as per the direction of manufacture's instructions, complete all specified and as directed. Note :- (i) The item shall be executed through authorised applicator of the company. An MOU grom the company whose material is to be incorported in the work has to be executed by the contractor and a copy of the same have to be submitted in the office of the GE (AF) Halwara before starting the work. (ii) 6 Hrs interval between two coat will be mantain. (iii) All auxilary and accessories involved during applacation should be supplied by single manufacturer as a part of system. (iv) 5% amount of the total amount of water proofing treatment shall be retained as a guarantee and shall be released after 10 years. However contractor may deposit the FDR of same amount in favour of GE. If contractor fail to rectify the defect pointed out during this period in writing, the defect shall be got rectified at contractor' risk and cost and the payment shall be made from the amount kept reserved or by encashing the FDR deposited by the contractor as guarantee. The contractor's quoted rates for this item shall deemed to be inclusive of this aspect