PROVN OF RAINWATER HARVESTING FOR MD ACCN AT AFS THANJAVUR

Amount

Excavation in trenches, not exceeding 1.5m wide and not exceeding 1.5m in depth for foundations, shafts, wells cess pits etc., and getting out in hard dense soil including taking out electric cables and sewer lines complete all as specified and as directed.

Returning, filling in, including spreading, levelling, watering and well ramming in layers not exc 25 cm thick complete all as specified and as directed.

Removing excavated material to a distance exc. 250 m but n exc. 500 m and depositing where directed at a level n.exc 1.5m height complete all as specified and as directed.

M & L Plain cement concrete 1:4:8 type D2 using 40 mm graded stone aggregate as in foundations, filling and mass concrete complete all as specified and as directed.

M & L Brickwork with fly ash bricks, straight or curved on plan exc 6m mean radius, built in built in CM 1:4 complete all as specified and as directed.

M & L for UV resistance UPVC roof gutter of size 220x195x195 mm of minimum 2 mm thick as in wall/ roof projection including end stops, corner piece etc, fixed to bracket with suitable SS screws and fastner etc complete all as specified and as directed.

Description all as per srl item no 06 here-in-before but runner drop 220 mm complete all as specified and as directed.

M & L framed brackets of angles or tees with web and flanges cut to shape, drilled and countersunk for screw, including bending and welding angles, as necessary, gusset plates, riveting, etc.. n exc 10 kg each brackets, conforming to Fe.290.Gde-E-165 complete all as specified and as directed.

S & F 100 mm dia UPVC pipe SCH 40 as in wall incl fittings, clamp & drilling screws complete all as specified and as directed.

S & F reinforced concrete pipes, class NP3, laid and jointed complete with collars, 150mm internal dia, complete all as specified and as directed.

M&L Plain cement concrete 1:3:6 type C2 using 40mm graded stone aggregate as in concrete bed to drain pipes including packing under and haunching against the sides of pipes after they are laid and tested of 150mm bore complete all as specified and as directed.

M & L Plain Cement Concrete 1:2:4 type B1 using 20 mm graded stone aggregate as in coping/benching including necessary form work complete all as specified and as directed.

M&L Precast reinforced cement concrete 1:2:4 type B1using 20mm graded stone aggregate as in cover slab set in cement mortar 1:4 incl formwork complete all as specified and as directed. Note : Reinforcement shall be measured and paid separately.

S & F TMT bars 6 to 8mm dia, cut to length, bent to shape required, including cranking, bending spirally, hooking ends and binding with and including mild steel wire (annealed) not less than 0.9mm dia complete all as specified and as directed.

M & L Rendering 15 mm thick in cement mortar 1:4 on fair faces of brick work or concrete surfaces finished even and smooth without using extra cement complete all as specified and as directed.

M&L Soakage wells of size 3.0mm dia and 3.0m effective depth including excavation, in any type of soil, foundation in PCC 1:3:6, walls of honey combed masonry with top ring of M25 concrete including intercepting chamber and screen chamber made of Brick masonary in CM (1:4), RCC cover slab in M25/ SFRC cover, interconnecting pipes ofRCC/DWC complete filled with brick bats of size 3.00m dia and 3.00m effective depth complete and as shown in Drg No AFB/TD/125 dated 07/08/99 sheet 1/2 to 2/2 complete all as specified and as directed.

Drilling of bore well 350mm outer dia in any type of strata by rotary test ring method or any other approved method for a depth up to hard dense soil/ soft disintegrated rock level using soil bit at the location shown complete all as specified and as directed.

Development of successful bore well by compressor and removing the fine sand, rock particles and other dust items etc complete all as specified and as directed.

Supply and inserting UPVC slotted casing pipe of outer dia 200mm 6kg/ Sqcm rating heavy duty screwed and socket type for bore well confirming to IS specification with IS marked complete all as specified and as directed.

Description all as per srl item no 19 here-in-before but plain casing pipe 200mm dia complete all as specified and as directed.

S & F PVC 200mm dia bore pipe cap suitable for casing pipe complete all as specified and as directed.

M & L of M sand filter media of grade 2mm to 4.75mm approved quality free from vegetation or any clay and silt particle to be removed by washing and settlement method complete all as specified and as directed.

M & L loose filling with well graded broken stone aggregate of guage 12.50mm to 40 mm in layer of gradation wise for filter media complete all as specified and as directed.

M&L for preparation of new surface and applying two coat of synthetic enamel paint over a coat of red oxide primer on new steel surfaces of any description, over 10cm in width or girth,not otherwise described complete all as specified and as directed.

S.T.S.CONSTRUCTIONS AGENCIES (BID ID -3193290)

BKR Enterprises (BID ID -3193401)

CHOLA AND CO (BID ID -3192496)

J L CONSTRUCTIONS (BID ID -3192910)

CHANDRASEKRAN ENTERPRISES (BID ID -3193183)