tender for construction of new/ additional single class (computer lab) rooms at pums, vaiyampatty in vaiyampatty block in tiruchirappalli district under nabard - 2024-25; 1 construction of new/ additional single class (computer lab) rooms at pums, vaiyampatty in vaiyampatty panchayat. earthwork excavation for foundation (for narrow excavation) to full depth as per designed in all soils and sub soils except soft disintegrated rock not requiring blasting and hard rock requiring blasting and bailing water wherever necessary. refilling the sides of foundation with excavated earth other than sand in layers of well rammed and compacted and depositing the surplus earth in places shown by the departmental officers with an initial lead of 10m and initial lift of 2m and clearing and leveling the site etc. complete complying with standard specification. 2 supplying and filling in foundations and basement with filling m- sand in layers not exceeding 15 cm.thick,well watered,rammed and consolidated etc. complete complying with standard specifications. 3 filling in basement with excavated earth in layers of not more than 15cm. thick well rammed, watered and consolidated complying with standard specifications etc., complete. 4 plain cement concrete 1 : 4 :8 ( one part of cement, four parts of sand and eight parts of hard broken stone ) using 40 mm gauge hand broken hard broken granite stone jelly complying with standard specifications in foundations and basement. 5 brick work in following cement mortar 1:5 using best quality ii class table moulded bricks 83/4 x 41/4 x23/4 for foundation and basement including curing etc.,complete complying with standard specification.including scaffolding curing cost of reinforcement etc.all complete as per specifications and drawings as directed by the engineer in-charge. foundation basement 6 supplying and erecting centering and shuttering for soffits including necessary supports and strutting up to 3 m height for plane surfaces as detailed below in all floors with all cross bracings using mild steel sheets of size 90 x 60 cm and 10 bg stiffened with welded mild steel angle of size 25mm x 25mm x 3 mm for boarding laid over silver oak joists of size 10cm x 6.50 cm spaced at about 90 cm centre to centre and supported by casurina props of 10cm to 13 cm dia spaced at not more than 75 cm centre to centre etc. complete complying with the standard specification.(payment for centering shall be given after the concrete is laid). footing, plinth beam, etc. 7 plain surfaces such as roof slab, floor slab, beams, lintels, loft, sill slab, staircase waist, portico slab and other similar works. 8 providing and laying in position, m-20 grade in accordance with is:456-2000, using 20mm and down grade hard broken granite stone jelly for all rcc items of works with minimum cement content of 350kg/m3 and maximum water cement ratio of 0.50, including admixture (plasticiser / super plasticiser) in recommended proportions as per is:9130 to accelerate, rated setting of concrete, improve workability without impairing strength and durability with about (5.0 cu.m) 7730kg. of 20mm machine crushed stone jelly and with about (3.3cum) 5156 kg. of 10-12mm machine crused stone jelly and with about (4.79cum) 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. (no separate payment will be made by the department for the excess usage of materials). foundation & basement 9 steel - fe 500 d: supply, fabrication and placing of reinforcement steel of high yield strength ribbed bars of various diameters and grade conforming to is 1786 for reinforced concrete work. the work includes recoiling, straightening, cutting, bending, fabricating, and placing in position, at all levels including lead and lift, according to drawings, specifications etc. complete and supply & use of 18g black annealed binding wire double fold to tie the bars in position and providing precast cement/ pvc cover blocks for main reinforcement to ensure specified cover and complete., including all labor charges etc as directed by departmental officers. 10 supplying and applying of two coats of putty of 3mm thick over the exposed rcc surface of ceiling including finishing the joints smoothy with grinding machine and the surface shall be thoroughly cleaned out of dust and scrubbing. the surface shall then be allowed to dry for atleast 48 hours. it shall then be sand papered (waterproof abrasive sheet) to give a smooth and even surface. any unevenness shall be made good by applying 1st coat of putty mixed with water on the entire surface including filling up the undulations and applying 2nd coat of putty after 6 hours of 1st coat of putty and then sand papering (waterproof abrasive sheet) the same after it is dry and finishing the surface smoothly, etc., complete complying with standard specifications and as directed by the departmental officers. [ the rates are inclusive of hire charges for grinding machine with wheel, cost of sand paper (waterproof abrasive sheet), cost of putty blade, labour charges for grinding the joints and sand papering, two coat of putty, scrapping the putty area to level the surface smooth, etc., complete]. the putty shoule be got approved by the executive engineer before use on work. 11 providing & applying 12 mm thick cement plaster in cm 1:5 (1 part of cement: 5 parts of sand) to walls internally in single coat at all levels to correct line and level including chicken wire mesh at all joints of brick and concrete surfaces with minimum overlap of 150 mm in all directions, scaffolding, rounding off or chambering of corners, offsets, fin/ bands, projections, etc. and cleaning of surface, raking out joints, roughening of surface, chiseling the undulated surface wherever necessary and curing, etc., all materials and labor complete in all respects including all lead, lift and descent and as directed. 12 providing granolithic floor finish of the following thickness with plain cement concrete 1:2:4 (one cement, two crushed stone m.sand and four aggregate) using 10 to 12mm gauge hard broken stone jelly including laying, finishing and the top rubbed smooth with power trawl, thread lining, curing etc. complete complying with standard specification and as directed by the departmental officers. (the rate is inclusive of necessary planking for panelling wherever necessary and as directed by the departmental officers) 13 finishing the top of roof with one course of machine pressed tiles of size 230mm x 230mm x 20mm of approved quality set in cement mortar 1:3 (one cement and three sand) 12mm thick mixed with water proofing compound conforming to iss at 2% by weight of cement used and the joints pointed neatly to full depth of tiles with the same cement mortar mixed with red oxide and water proofing compound including curing etc., complete complying with standard specification and as directed by the departmental officers. 14 paving the floor with kota stone slab of size 600 x 600 of 18 / 20mm (un-polished) in all floors laid in of cement mortor 1:3 (one cement three m.sand), 20mm thick and pointed with colour cement neatly including polishing with polishing stone and oxalic acid etc., so as to perfectly smooth and glossy and including hire charges for polishing machine and power consumption charges etc. the kota stone slabs and other materials to be used shall be got approved by the executive engineer concerned before use on work, etc., complete as per standard speicification. 15 providing granolithic floor finish of the following thickness with plain cement concrete 1:2:4 (one cement, two sand and four aggregate) using 10 to 12mm gauge hard broken stone jelly including laying, finishing and the top rubbed smooth with power trawl, thread lining,curing etc. complete complying with standard specification and as directed by the departmental officers. (the rate is inclusive of necessary planking for panelling wherever necessary and as directed by the departmental officers). 16 distembering two coats using best approved interiar oil destember with one coat primer over new plastered surface including cost and conveyance of materials and labour charges etc complete 17 supplying and painting the walls with one coat of wall primer and two coats of exterior emulsion (apex or equivalent) as instructed by the departmental officers including preparation of surface curing, etc., complete in all floors complying with standard specifications (the colour and shade of the cement paint shall be got approved by the executive engineer before use of work). 18 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 executive engineer before use on works.) 19 manufacturing supplying and fixing of steel door with the following specification ms angels of size 40x40x6mm are used for the outer frames and m.s. angles of size 35x35x5mm for the shutter frames stiffeners with 32 x 6mm m.s flat is provided at required intervals in the shutter frame. 18-gauge c.r. sheet laid as panel in the shutter and welded intact. m.s. flat 18x5mm is welded over the 32 x 6mm m.s. flat m.sandwitching the c.r. sheet in between additional stiffeners with 18x5mm m.s. flat is provided diagonally at the rear side of the shutter, 3nos. of hinges in case of single leaf and 6nos. of hinges in double leaves shutter to be provided 6nos. of holdfasts 120 mm in length made of angle section spliced at the ends are welded to the outer frames of the door. tower bolts 2nos. one at the top and the other at the bottom are provided 1no. aldrop is provided incase of double leaf door at lock rail section in the door in single leaf door, one more aldrop is provided in the inner lock rail section of the door one rotaing locking arrangements for the inner side of the door and additional provision for locking arrangements for lock is provided on the rear side of the door at an appropriate place. incase of double leaf door m.s.flat 32 x 3mm at 1.1kg/m is provided on the one shutter t conceal the gap between the two shutters.at an appropriate place in the door. a tie bar is provided at the bottom of the frame to prevent twisting of frame during transportation and fixing. all members are given a coat of red oxide primer as directed by the departmental officers. the rate includes cost of all materials, labour charges, transportation to site of work, loading, un loading and all other incidental charges etc., complete. 20 manufacturing, supplying and fixing in position of steel windows with the following specifications. outer frames of windows made of z section f7d of size 33 x 25 x 3mm at 1.419kg/m and mullion j section (f4b) of size 46 x 25 x 3mm at 2.28kg/m and shutter section of made of f7d of 33 x 25 x 3mm at 1.419kg/m as specified in is 7452/1990. ach openable shutter should not exceed a width of 600mm to enable separate operations and easy maintanenance. the panel of the shutters to be covered with 18 gauge cold rolled sheet of superior quality and welded intact with shutter frames. horizontal stiffeners using 18 x 5mm ms flat at 0,70kg/m at 3nos. for each shutter and additional diagonal stiffeners of the same ms flats at all the four corners of each shutters to the suitable length welded to the shutters, for holding the cr sheets in position firmly. 21 sub estimate for electrification wiring 2 x 1.5 sq.mm (22/0.30)pvc insulated unsheathed sc.cu.conductor of 1100 v grade in suitable pvc rigid pipe on wall and ceiling with pvc accessories with tw switch box with in flush with wall covered with hylem sheet of 3 mm thick with painting of suitable colour for concealed pvc light/ fan point (sd no.23) 22 supply and fixing of 4-18w led tube with fitting inclusive of all charges sd 88 23 supply and fixing of cfl sd.no.80 24 supply&fixing of street light sd no.94 25 supply and fixing of 1200mm sweep ac ceiling fan complete with stepped electronic regulator with 300mm down rod on the existing clamp sd.no.110 26 supply and fixing of 3 nos. 5a (3 pin and 2 pin) combined flush type wall socket with control switches concealed insuitable tw box covered with hylem sheet in flush with wall with earth connection (for computer plug socket) sd.no.39 27 supply and run of 2x4 sqmm (22/0.3) pvc insulated sc unsheathed cu.conductor of 1100v grade in 25mm dia gi pipe (class b) suitably bent at both ends with necessary angle iron upright and end supports for mains sd.no.68 28 supplying and fixing pvc rain water down fall pipes of following dia meter etc., complete. 29 providing cuddapah slabs 20/30mm thick including curing etc., 30 providing cup board shutter with frame using water proof plywood of 19mm thick over which laminated sheet of 0.8mm thick fixed inside the shutter (sl.no 124) 31 provision for name board charges