Replacing the AC sheet by Providing GI roofing for machinery godown and providing water supply arrangt, CC pavement and GI roofing in Ash shed in TNCSC MRM campus at Thimmavaram in Chengalpattu District

Amount

CIVIL WORK

Dismantling Brick / Stone Masonry in cement mortar walls under 3M height and clearing away and carefully stacking materials useful for re-use as directed by the departmental officers.

Dismantling AC sheet roofing without roof timber and clearing away and carefully stacking materials useful for re-use as directed by the departmental officers

Earth work excavation for foundation in all classes of soils and sub-soils and to full depth as may be directed except in hard rock requiring blasting including initial leads and lifts and refilling the sides of foundation with excavated earth in 150 mm layers well watered, rammed and consolidated including depositing surplus earth within the godown or inside compound in places shown with initial lead of 10 mts and initial lift of 2 mts. Clearing, leveling the site, shoring, strutting, bailing of water wherever necessary etc., complete complying with standard specification and as directed.

Earth work open excavation in all soils and sub-soils and to full depth as may be directed except in hard rock requiring blasting inclusive of shoring shuttering, bailing out ~`water wherever necessary and depositing the excavated earth with a lead of 10 mts within the compound in places shown by the departmental officers and clearing and leveling the site, etc., complete complying with standard specification.

Supplying and filling in basement with wetmix 250mm thick in layers of not exceeding 250mm thick, well watered, rammed and consolidated including machineries for hire and running charges leader 5 Cum capacity, hire charges for tipper, water sprinkler,` vibratory roller all labour charges etc., complete complying with standard specification and as directed by the departmental officers.

CEMENT CONCRETE 1:5:10(one cement, five sand and ten aggregate)using 40mm gauge hard broken granite stone jelly for foundation including mixing by mechanical means de-watering side shuttering , strutting, wherever necessary including curing etc., complete complying with standard specifications and as directed.

Providing and laying in position, Standardised Concrete Mix M15 Grade in accordance with IS:456-200 using 20mm and down graded hard broken granite stone jelly for all RCC items of works with minimum cement content of 325 kg/M3 and maximum water cement ratio of 0.55, including admixture (Plasticiser / super plasticiser) in recommended proportions as per IS:9103 to accelerate, retard setting of concrete, improvement workability without impairing strength and durability with about (5 Cu.m) 7730 Kg of 20mm machine crushed stone jelly and with about (3.3 Cum)5156 kg of 10-12mm machine crushed stone jelly and with about (4.7 Cum) 7670 kg of sand, but excluding cost of reinforcement grill fabricating charges, centering and shuttering and also including laying, vibrating with mechanical vibrators, finishing, cutting etc., Placing of concrete and surface hardner finishing with power floated and power trawler to obtain the hard surface including provision of expansion joints at 6Metre intervals across the platform by Groove cutting 6mm wide with polysulphide sealant in full depth of concrete etc., The coarse and fine aggregates to be used should comply with the requirements of 15 Standards. (No separate payment will be made by the Department for the excess usage of materials.

Providing FORM WORK for centering the soffits of all reinforcement concrete work including strutting to the required (3 metre) height with mild steel sheets of size 90cm x60cm 10gauge stiffened with welded mild steel angles of size 25mm x 25mm x 3mm laid with country wood joist of average of size 10cm x 6.50cm at about 90cm centers with casuarinas props of 13cm dia at 75cm centre to centre with all nails coir, wedges complete and removing the form work after necessary curing period as directed by the corporation officers. The rates should inclusive of cutting, bending, welding charges of M.S.sheets; M.S. angles etc complete complying with standard specification and as directed. Binder wall and platform.

Supplying, fabricating and placing in position MS/RTS grills for reinforcement for all R.C.C.works including cost of steel, labour for straightening, bending, cranking, tying grills with 18 gauge galvanized binding wire and placing grills in position complete complying with standard specification and as directed.

Supplying and fixing in position best quality PVC soil / waste pipes of 110mm dia having 6 kg / sq.cm. pressure BIS mark and providing leak proof joints using PVC adhesives including fixing to the wall with special PVC / MS clamp, teak wood plugs, brass screws, etc., and making connection to all sanitary fittings etc., complete as directed by the departmental officers.

Supplying and fixing RCC Hume pipe of 300mm dia including cost, conveyance of materials, fixing in position etc., complete as directed by the departmental officers.

Supplying and laying of High profile colour galvalume sheet (as per ISI Standard) with combination 55A1:43 4Zn:1:6SI of TCT bent type 0.47mm thick not less than 150 GSM and standard width of 1.06m with yield strength of 550 MPA made from high tensile/ CR sheets of approved quality for roofing with necessary fixing arrangements like 65m and long hexagonal head screws with EPDM rubber seal etc., complete, complying with standard specification and as directed by the departmental officer. (Test certificate for quality should be furnished on receipt of material at site)

Supplying and roofing with Galvalume sheet ridge pieces of size 1.00M x 0.7M, 0.47mm thick with necessary U or J bolt and nuts G.I washers etc., complete For the above works skilled man power, necessary tools, equipments, power supply, water supply including transport, any other statuary approval required for the transporting the materials shall be duly obtained by the contractor. (Test certificate for quality should be furnished on receipt of material at site)

Supplying and fixing of 40 X 6mm G.I Flat over the galvalume sheet roofing which is placed on the top of Purlin in the longitudinal direction to avoid the lifting of roofing during heavy wind. The rate is inclusive of GI screws 75mm length with rubber and aluminium washer, drilling hole over GI Flat to hold the sheet and purlin with necessary adhesive flashing tap directly over the galvalume sheet including labour charges for fixing, conveyance, loading, unloading and cutting etc. complete as directed by the departmental officers.

PLASTERING with cement mortor 1:3 (one cement and three sand) 12mm thick including mortar plastcizer at 200ml per 50kg of cement used, cost of scaffolding, finishing, curing etc., complete complying with standard specification and as directed by the departmental officers.

Painting the walls with two coats ready mixed Exterior emulsion paint of first class approved quality and colour over a priming coat including thorough scrapping, clean removal of dirt, and including necessary plaster of paris putty, wherever required etc., complete complying with standard specification and as directed.

R ravi (BID ID -1510620)

M SELVAM (BID ID -1510616)