Construction Of 2 Lakh Litre over head tank At Perai Area In Pacode Town Panchayat.- 1 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&24Ist depth 2 IInd depth 3 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 4 Providing and Iaying in position, Standardised Concrete Mix M-30 Grade in accordance with IS:456-2000, using 20 mm and down graded hard broken granite, stone jelly for all RCC items of works with minimum cement content of 400 kg/m³ and maximum water cement ratio of 0.45, including admixture (plasticiser / super plasticiser) in recommended proportions as per IS:9103 to accelerate, retard setting of concrete, improve workability without impairing strength and durability with about (5.0 m³) 7730 Kg. of 20 mm machine crushed stone jelly and with about (3.3 m³) 5156 kg. of 10 - 12 mm machine crushed stone jelly and with about (4.79 m³) 7670 Kg. of sand, but excluding cost of reinforcement grill and fabricating charges, centering and shuttering and also including laying, vibrating with mechanical vibrators, finishing, curing, etc. and providing fixtures like fan clamps in the RCC floor / roof slabs wherever necessary without claiming extra, etc complete complying with standard specification and as directed by the departmental officers. The coarse and fine aggregates to be used should comply with the requirements of IS Standards.Beyond 1.5 m & upto 4.5 m below GL 5 Upto 1.5 m below GL 6 From 0 m to 4.5 m above GL 7 From 4.50 m to 7.32 m above GL 8 From 7.32 m to 10.98 m above GL 9 10.98 to 14.64 m above GL 10 10.98 m to 14.64 m above GL. Floor beam 11.25 - 11.65 m 11 14.64 m to 18.30 m above GL 12 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.Plain surfaceFor 0.00 to 3.30 m (plane surface) 13 Centering for plane surface 03.30 m to 04.30 m braces at 3.75 m 14 Centering for plane surface07.30 m to 08.30 m braces at 7.50 m 15 Centering plane surface 11.30 m to 12.30 m floor beam at 11.25 m 16 Square surfaceCentering square column 0.00 m to 03.30 m 17 Centering square column 03.30 m to 04.30 m 18 Centering square column 04.30 m to 05.30 m 19 Centering square column 05.30 m to 06.30 m 20 Centering square column 06.30 m to 07.30 m 21 Centering square column 07.30 m to 08.30 m 22 Centering square column 08.30 m to 09.30 m 23 Centering square column 09.30 m to 10.50 m 24 Centering square column 10.30 m to 11.30 m 25 Curved surfaceCentering for curved surface 0.00 m to 03.30 m (Above 1.00 LL capacity) 26 Centering curved surface 3.30 m to 04.30 m (Above 1.00 LL capacity) 27 Supplying, fabricating and placing in position of Steel Reinforcement using Mild steel or ribbed tar steel rods, for all RCC works as per the design given by the departmental officers including cost of steel cutting, bending, placing in position and binding with binding wire and all labour charges for cutting, bending, tying and placing in position etc, complete. TNDSS No:97 28 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. 29 Construction of RCC spiral staircase in RCC 1:1½:3 20 mm HBGS of 1.80 m Ø of required height for approach to the roof of SR with RCC hand rails as per type design including necessary earth work for providing foundation in CC 1:4:8 mix RCC footing 1:1½:3 mix, GL platform etc. including cost of steel reinforcement, fabrication charges, scaffolding charges, centering, precasting charges, cement painting etc complete. The staircase should be braced to the column of service reservoir at suitable interval etc complete. 30 Providing and fixing of RCC inner access ladder in RCC 1:1:5:3 (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 cm x 15 cm and step slab of 25 mm x 25 mm etc., complete and as directed by TWAD board officers. 31 Supply and delivery of CI manhole frame with cover including cost of all materials, fixing of MS clamps, bolt and nuts, etc. complete and as directed by TWAD board officers. 32 Providing RCC (1:1.5:3) ventilator using 20 mm HBG stone including cost of all materials, centering, shuttering, strutting, reinforcement, placing or concrete, finishing, curing and fixing in position on the roof slab with mosquito proof net arrangements and etc. complete and as directed by TWAD board officers. 33 Providing and fixing of cut stone (rough dressed) set in CM 1:3 of size 0.45 x 0.45 x 0.15 m at site including cost of all materials, labour charges, curing etc. complete and as directed by TWAD board officers. 34 Providing and fixing in position of precast RCC (1:2:4) hand rails of approved design for one meter height by using 20 mm HBG stone including cost of all materials, centering, shuttering, strutting, reinforcement, placing of concrete, finishing, curing and fixing in position on the roof slab etc. complete and as directed byTWAD board officers. 35 Refilling the foundation with excavated soil (other than sand) in layers or not more than 15 cm thick, watering, well ramming, consolidating,complying with standard specification and as directed by TWAD board officers. 36 Supplying, delivery and fixing in position of following PVC / GI pipes and specials of approved quality and good variety excluding fixing charges etc complete.125 mm GI pipe 37 125 mm GI bend 38 125 mm GI coupling 39 100 mm GI pipe 40 100 mm GI elbow 41 100 mm bend 42 100 mm GI flange set 43 125 mm GI flange set 44 100 mm GM gate valve 45 125 mm GM gate valve 46 140 mm PVC 6KSC pipe 47 140 mm mm PVC bend 48 140 mm elbow 49 110 mm PVC pipe 50 110 mm PVC elbow 51 110 PVC bend 52 140 mm PVC MTA 53 110 mm PVC MTA 54 Earth work excavation and depositing on bank with initial lead of 2 metre narrow trenches for laying of pipes and refilling earth for water supply works in the hard stiff clay stiff black cotton hard red earth shales murram gravel stoney earth and earth mixed with small size boulders and hard gravelly soil as directed by the departmental officers. 55 Lowering of following PVC/GI pipes to trench, laying to proper grade and alignment including testing the pipeline etc. complete.125 mm GI pipe 56 100 mm GI pipe 57 140 mm PVC 6KSC pipe 58 110 mm PVC pipe
