Maintenance of OHTs Manivilai-1, Mthempalai, Kannumaamoodu-1, Kannumamoodu-II, Thookkukonam, Mannoorkonam, Kuzhivilakom, Palukal, Tholadi, Manivilai-II in Palukal Town Panchayat.

Amount

Providing two legged scaffolding using 15 cm blue gun posts or casurina props or best quality bamboo posts at 4 metres over all length, the distance between two rows being 1.25 metre and spacing of posts 2 metres. in both the rows with two horizontal posts with 0.5 metres over lap on either side and braces at 2 m c/c including longitudinal and traverse middle braces to step up as providing a platform with country wood planks of 40 mm thick and 1 Mt. width etc. in complete around the OHT.

Painting two coats with ready mixed plastic emulsion paints of first class quality and of approved colour over existing coat including through scraping clean removal of dirt etc, complete and including cost of necessary plaster of paris, putty, brushes, wherever required and all labour charges, scaffolding charges etc., complete as per standard specification.

Fabrication, supply, delivery and fixing of outside MS Ladder of 45cm clear wide made out of 50 mm x 50mm x 6mm MS angle for both sides and for steps at 30cm C/C welded jointed etc., for I staging from GL to 1st level brace (weight 4.5kg/m) IInd and IIIrd staging upto floor slab and IVth staging from floor slab to roof top. Supply, delivery and fixing of 32 mm GI pipes medium for hand rails from I stage to IVth stage. RCC M30 Grade mix for Landing slab 5 Nos. at Ground Level - 1No. and above Ground Level - 4Nos. Supply and fixing of 32mm GI pipe medium for hand rails for the Landing slab. Supplying and fixing of MS Base plate of 100mm X 100mm X 6mm thick for fixing Anchor fastener bolt for fixing of hand rails at Landing slab and MS Ladder providing locking arrangements with two coats of approved enamel paint over one coat of red oxide paint as per approved Type Design and as directed by TWAD board officers.

Providing and fixing of RCC inner access ladder in RCC 1:1½:3 (one cement, one and half sand and three aggregate) using 20 mm HBG stone for OHT including cost of reinforcement, placing grill in position, centering shuttering charges, mixing concrete curing etc. to required height and clear width of 45 cm consisting of two Nos. of vertical post of 10 x 15 cm and step slab of 25 x 25 mm etc., complete and as directed by officers.

Supply and fixing in position of heavy type CI manhole cover of size 60 x 60 cm including making necessary raised portion with brick work in cement mortar 1:5 and plastering with cement mortar 1:5 etc complete complying with standard specification and as directed by the departmental officers.

Earth work excavation for foundation and depositing on bank with in the initial lead of 10m and a lift of 2m in hard stiff clay, stiff block cotton, hard red earth, shales, murram, gravel, stoney earth and earth mixed with small size boulders etc complete complying with SS20B. TNDSS No:23&24

Cement concrete of mix 1:4:8 (one part of cement four part of sand and eight part of aggregates) using 40 mm gauge machine broken granite stone jelly for foundation including de watering if found necessary and laid in layers of not more than 15 cm thick well rammed and consolidated etc complying with standard specification. TNDSS No:28

Supplying and erecting centering to sides and soffits including supports and strutting with necessary centering for soffits upto 3 meter height using mild steel sheet of size 90 cm x 60 cm x 10 mm gauge with MS angles of size 25mm x 25mm x 3mm laid over silver oak (CW) joists of size 10cm x 6cm spaced upto 90cm c/c and casurina props or 10 cm to 13 cm dia spaced at 0.750 cm c/c complying with standard specifications as per TNDSS NO : 30 & 86.

Cement concrete of mix 1:3:6 (one part of cement three part of sand and six part of aggregates) using 40 mm gauge machine broken granite stone jelly for foundation including de watering if found necessary and laid in layers of not more than 15 cm thick well rammed and consolidated etc complying with standard specification. TNDSS No:24

Supplying and fixing Solid Blocks of following size conflirming to SS 2145-1965 (including jam blocks closers etc) made in cement concrete 1:3:6 mix in cement mortor 1:5 and partition wall including curing neat finishing etc complete complying with standard specification and as directed by the departmental officers etc.

Plastering walls with cement mortar 1:4 (one part of cement four part of sand) 12 mm thick including all cost and conveyance of all materials and all labour charges etc. complete as per standard specification. TNDSS No:61

Supplying and fixing mild steel gate using MS flats and rounds as directed by the departmental officers inclusive of cost of MS grill including one of red oxide and fixing in position etc. complete (as per the schedule of rate)

Plastering walls with cement mortar 1:3 (one part of cement three part of sand) 12 mm thick including all cost and conveyance of all materials and all labour charges etc. complete as per standard specification. TNDSS No:61

Painting two coats with ready mixed plastic emulsion paints of first class quality and of approved colour over a priming coat including through scraping clean removal of dirt etc, complete and including cost of necessary plaster of paris, putty, brushes, wherever required and all labour charges, scaffolding charges etc., complete as per standard specification.

Painting new iron works such as steel doors, windows, ventilators, window bars, balustrades etc with two coats of best approved first quality and colour of synthetic enamel paint over the existing red oxide priming coat in all floors excluding cost of priming coat etc complete complying with standard specification. (The make, quality and colour of paint should be got approved by the departmental officers before use on works.)

Painting old iron works such as steel doors, windows, ventilators, window bars, balustrades etc with two coats of best approved first quality and colour of synthetic enamel paint over the existing coat in all floors excluding cost of priming coat etc complete complying with standard specification. (The make, quality and colour of paint should be got approved by the departmental officers before use on works.)

Supplying, delivery and fixing in position of following PVC / GI pipes and specials of approved quality and good variety excluding fixing charges etc complete.

50 mm GI pipe

50 mm GI coupling

50 mm GM gate valve

50 mm GI bend

50 mm GI flange set

65 mm GI pipe

65 mm GI coupling

65 mm GM gate valve

65 mm GI bend

65 mm GI flange set

80 mm GI pipe

80 mm GI coupling

80 mm GM gate valve

80 mm GI bend

80 mm GI flange set

D. NESAMONY (BID ID -1351448)