Indian Institute Of Technology - Tamil Nadu
40766521 tender for construction of lift shaft at nccr in iit madras campus; 1 civil work 2 providing and erecting temporary barricading at site; each panel of size 2.50mx2.00m made of 40x40x6mm angle iron or 50x50x3mm hollow ms tube posts / horizontal members / bracings covered with 1.63mm thick ms sheet. the sheet shall be fixed with 30x5mm ms flat by suitable welding / riveting. the panels shall be made so that gap of 50cm above the ground is available making overall height as 2.5m. ms channel islc 75 @ 5.70 kg / m, 50cm long shall be provided at the bottom having oval shaped holes of size 50x25mm at both ends with 50cm long ms angle 40x40x6mm bracing.suitable arrangement shall be made to fix the barricading to avoid from overturning by providing 250mm long expansion fasteners at both ends. the work shall be executed as per drawing / direction of engineer in charge which includes writing and painting, arrangement for traffic diversion such as traffic signals during construction at site for day and night, glow lamps, reflective signs, marking, flags, caution tape as directed by the engineer in charge. the barricading provided shall be retained in position at site continuously i / c shifting of barricading from one location to another location as many times as required during the execution of the entire work till its completion. rate include its maintenance for damages, painting, all incidentals, labour materials, equipments and works required to execute the job. the barricading shall not be removed without prior approval of engineer in charge. ( note : one time payment shall be made for providing barricading from start of work till completion of work i / c shifting. the barricading provided shall remain to be the property of the contractor on completion of the work ) . 3 earth work in excavation by mechanical means ( hydraulic excavator ) / manual means in foundation trenches or drains ( not exceeding 1.5 m in width or 10 sqm on plan ) , including dressing of sides and ramming of bottoms, lift upto 1.5 m, including getting out the excavated soil and disposal of surplus excavated soil as directed, within a lead of 50 m. all kinds of soil. 4 extra for every additional lift of 1.5 m or part thereof in excavation / banking excavated or stacked materials.all kinds of soil 5 removing of existing surplus earth through the tipper / lorry including loading, unloading and transporting to inside the iitm premises complete and as per the direction of engineer in charge. necessary deduction for voids of 20% will be made from the actual measured vehicle volume of earth. 6 removing of existing rubbish and garbage through lorry / truckincluding loading, unloading and transporting to outside the iitm premises including approval from local authorities like municipality / corporation complete and as per the direction of engineer in charge. necessary deduction for voids of 20% will be made from the actual measured vehicle volume of earth. 7 dismantling tile work in floors and roofs laid in cement mortar including stacking material within 50 metres lead. for thickness of tiles 10 mm to 25 mm 8 demolishing cement concrete manually / by mechanical means including disposal of material within 50 metres lead as per direction of engineer in charge.nominal concrete 1:4:8 or leaner mix ( i / c equivalent design mix ) 9 filling available excavated earth ( excluding rock ) in trenches, plinth, sides of foundations etc. in layers not exceeding 20cm in depth, consolidating each deposited layer by ramming and watering, lead up to 50 m and lift upto 1.5 m. 10 demolishing brick work manually / by mechanical means including stacking of serviceable material and disposal of unserviceable material within 50 metres lead as per direction of engineer in charge. 11 supplying and filling in plinth with m sand under floors, including watering, ramming, consolidating and dressing complete. 12 providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering all work upto plinth level : 1 : 4 : 8 ( 1 cement : 4 coarse m sand : 8 graded stone aggregate 40mm nominal size derived from natural sources ) . 13 providing and laying in position ready mixed or site batched design mix cement concrete for reinforced cement concrete work; using coarse aggregate and fine aggregate derived from natural sources, portland pozzolana / ordinary portland / portland slag cement, admixtures in recommended proportions as per is: 9103 to accelerate / retard setting of concrete, to improve durability and workability without impairing strength; including pumping of concrete to site of laying, curing, carriage for all leads; but excluding the cost of centering, shuttering, finishing and reinforcement as per direction of the engineer in charge; for the following grades of concrete.note: extra cement up to 10% of the minimum specified cement content in design mix shall be payable separately. in case the cement content in design mix is more than 1.10 times of the specified minimum cement content, the contractor shall have discretion to either re design the mix or bear the cost of extra cement 14 all works upto plinth level concrete of m35 grade with minimum cement content of 380 kg / cum 15 all works above plinth level upto floor v level concrete of m35 grade with minimum cement content of 380 kg / cum 16 centering and shuttering including strutting, propping etc. and removal of form for 17 foundations, footings, bases of columns, etc. for mass concrete 18 lintels, beams, plinth beams, girders, suspended floors, bressumers and cantilevers 19 columns, pillars, piers, abutments, posts and struts 20 extra for additional height in centering, shuttering where ever required with adequate bracing, propping etc including cost of de shuttering and decentering at all levels, over a height of 3.50m, for every additional height of 1.0m or part thereof ( plan area to be measured ) . : suspended floors, roofs, landing, beams and balconies ( plan area to be measured ) . 21 steel reinforcement for r.c.c. work including straightening, cutting, bending, placing in position and binding all completefor all level. thermo mechanically treated bars of grade fe 500d or more. 22 brick work with fly ash concrete blocks of class designation m10 in foundation and plinth in cement mortar 1:4 ( 1cement :4 coarse m sand ) 23 add extra for brick work with fly ash concrete blocks in superstructure above plinth level up to floor v level 24 12 mm cement plaster of mix 1:4 ( 1 cement: 4 fine m sand ) 25 15 mm cement plaster on the rough side of single or half brick wall of mix: 1:4 ( 1 cement: 4 fine m sand ) 26 6 mm cement plaster of mix 1:3 ( 1 cement : 3 m fine sand ) 27 distempering with oil bound washable distemper of approved brand and manufacture to give an even shade new work ( two or more coats ) over and including water thinnable priming coat with cement primer ( only for lift shaft area ) 28 applying super premium quality 100% exterior acrylic ( asian / ici / berger / nippon / nerolac ) emulsion : ( fresh work including complete scraping / surface preparation, as appropriate base ( primer ) coat and top two or more coats ) .applying exterior paint of approved colour, make, brand and surface coverage of painting as per the manufacturer specification. the exterior paint shall be applied over dry surface after complete scraping and removal of all loose powdery residue using mechanical methods with zero dust vaccum technology followed with high pressure jet washing and sealing the surface with necessary exterior base coat or primer before application of top coat of exterior paint. the contractor should ensure complete covering of floors using tarpaulin / plastic sheet while taking up the work. the rate quoted shall be inclusive of charges towards all labour, material, transport, scaffolding, safety arrangements, personal protective equipments ( ppe ) , tools and plants etc but excluding the cost of waterproofing, attending to leakages and major civil repair works if any. the paint manufacturer shall inspect the work in every stage, submit inspection / field test report, certify the product / application and give 10 year guarantee. 29 roof treatment: providing and layingpu membrane ( moist cured ) over the existing terrace including providingkhura and gola, laying the heat reflective tile over the membrane etc., complete.the work should be carried out involving the following items, sequences and specifications.a ) polymer modified mortar: resurfacing of the substrate with sika latex ( or mixbond sbr of fabchem, rheomix 141 of basf or nitobond sbr of fosroc ) polymer modified cement mortar ( cement: m sand ratio : 1:3 with a water ( mixed with sika latex ) cementratio of 0.4 0.45 ) , with a minimum thickness of 20 mm, to get a levelled surface. the dosage of sika latex will be 4 kgs per bag of cement.the rate should be inclusive of bonding coat with cement and latex mix of ratio 1:1 over the cleaned surface before application of mortar. b ) treatment to rain water mouth / khura making opening for fixing the rain water pipe with a diameter of the opening should be more than 25cm around the rain water pipe to be fixed.the new rain water pipe to be fixed to the opening after installing swellable acrylic based pu water bar around the pipe, fixing the rain water pipe to the opening made and filling the gap between the rain water pipe and the opening with non shrink grout without any gap, applying a layer of cementitious water proof coating over the rainwater floor mouth ( the rate also inclusive of applying a layer of cementitious coating cement : sbr 1:1 ratio over the wall floor junction before applying coving ) and finishing the surface neatly. 30 c ) providing gola / coving 75x75 mm in cement concrete 1:2:4 admixed with 4 ltr of sbr latex for 50 kg of cement ( 1 cement : 2 coarse m sand : 4 stone aggregate 10 mm and down gauge ) , including finishing with cement mortar 1:3 admixed with 4 ltr of sbr with 50 kg of cement ( 1 cement : 3 fine m sand ) as per standard design. the rate also inclusive of applying a layer of cementitious coating cement : sbr 1:1 ratio over the wall floor junction before applying coving.d ) supply and applying pu moist cured supplying and layingsingle component pu system using spray application only with mc hyperdesmo or equivalent product of sika / basf / asian paint / fosroc is a one component polyurethane fluid which cures with the humidity in the atmosphere. it produces a highly elastic membrane with strong adhesion to many types of surfaces.it is based on pure elastomeric hydrophobic polyurethane resin plus special inorganic fillers, which result in excellent mechanical, chemical, thermal, uv and natural element resistance properties. apply with airless spraying in two, at least, coats with minimum total consumption of 1.5 1.8 kg / m2 or as specified by the manufacturer. the rate inclusive of necessary surface preparation to receive the waterproofing coating etc., complete.e ) ponding test by storing water for a minimum depth of20 cm and the water to be retained for not less than 48 hours or as required by engineer in charge to ascertain any leakage.necessary repair / grouting to be done free costto arrest any leakage observed. 31 f ) geotextile: supply and apply a polyester based geotextile protection fleece. product: sarnafelt® 300 or equivalent approved by iitm. product requirements: density = 300 g / m2; thickness 2.4 mm; tensile strength = 430 n / 50mm; elongation at break = 100 %; tear strength = 250 n; puncture resistance = 1600 n; cone drop: 13 mm. g ) providing and laying light weight concrete of grade not less than m2.5 using expandable polystyrene aggregate to maintaining adequate of density 800 900 kg / cum and same shall be laid to maintainslope to drain the rain water over the geotextile ( not less than 1 in 80 ) . the minimum cement contnent shall not less than 250 kg / cum.the mix design shall be approved by the engineer incharge.minimum thickness of the concrete shall be 5cm. h ) providing and fixing heat resistant terrace tiles ( 300 mm x 300 mm x 9.5 mm ) manufactured by abc or equivalent with sri ( solar refractive index ) > 78, solar reflection >0.70 andemittance >0.75 on 30 mm thick cool mortar as per manufacturer specificationon sloped surface of terrace, laid on water resistant cement slurry prepared in the ratio of 1:3 ( 1 cement and 3 abc plus powder and add 3% nano acryl by volume ) and grouting the joints ( >3mm ) with abc grout and ppf ( poly propylene fiber ) in the ratio of 2 to 3 gm ppf per kg of abc grout including wetting ( by using a piece of sponge ) the grouted surface by abc nano clear in the ratio of 100 ml in two liter water. , including providing skirting upto 300 mm height along the parapet wall in the same manner. 32 providing and laying integral cement based treatment for water proofing on the vertical surface by fixing specified stone slab 22 mm to 25 mm thick with cement slurry mixed with water proofing compound conforming to is:2645 in recommended proportions with a gap of 20 mm ( minimum ) between stone slabs and the receiving surfaces and filling the gaps with neat cement slurry mixed with water proofing compound and finishing the exterior of stone slab with cement mortar 1:3 ( 1 cement : 3 coarse sand ) 20 mm thick with neat cement punning mixed with water proofing compound in recommended proportion complete at all levels and as directed by engineer in charge using rough kota stone 33 providing and laying polished granite stone flooring in required design and patterns, in linear as well as curvilinear portions of the building all complete as per the architectural drawings with 18 mm thick stone slab over 20 mm ( average ) thick base of cement mortar 1:4 ( 1 cement : 4 coarse sand ) laid and jointed with cement slurry and pointing with white cement slurry admixed with pigment of matching shade including rubbing, curing and polishing etc. all complete as specified and as directed by the engineer in charge. polished granite stone slab colour of black, cherry / ruby red or equivalent. 34 providing and fixing 18 mm thick gang saw cut, mirror polished, premoulded and prepolished, machine cut for kitchen platforms, vanity counters, window sills, facias and similar locations of required size, approved shade, colour and texture laid over 20 mm thick base cement mortar 1:4 ( 1 cement : 4 coarse m sand ) , joints treated with white cement, mixed with matching pigment, epoxy touch ups, including rubbing, curing, moulding and polishing of edges to give high gloss finish etc. complete at all levels.granite stone slab of colour black, cherry / ruby red area of slab over 0.50 sqm 35 extra for providing opening of required size & shape for wash basin / kitchen sink in kitchen platform, vanity counter facias and similar location in marble / granite / stone work, including necessary holes for pillar taps etc. including moulding, rubbing and polishing of cut edges etc. complete 36 providing edge moulding to 18 mm thick marble stone counters, vanities etc., including machine polishing to edge to give high gloss finish etc. complete as per design approved by engineer in charge. granite work 37 providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering all work up to plinth level :1:3:6 ( 1 cement : 3 coarse m sand ( zone iii ) derived from natural sources : 6 graded stone aggregate 40 mm nominal size derived from natural sources ) 38 providing and fixing on wall face unplasticised rigid pvc rain water pipes conforming to is : 13592 type a, including jointing with seal ring conforming to is : 5382, leaving 10 mm gap for thermal expansion, ( i ) single socketed pipes.110 mm diameter 39 supplying and fixing gi base clamp of all size ( galvanised ) for laying / fixing pipe lines of various diameter on walls, the rate inclusive of necessary u clamp for fixing pipes, acnchour fastner for fixing the clamp etc complete.the measurement will be made based on the actual weight of the clamp and necessary bolt. 40 providing and fixing on wall face unplasticised pvc moulded fittings / accessories for unplasticised rigid pvc rain water pipes conforming to is : 13592 type a, including jointing with seal ring conforming to is : 5382, leaving 10 mm gap for thermal expansion.110 mm bend 41 providing and fixing on wall face unplasticised pvc moulded fittings / accessories for unplasticised rigid pvc rain water pipes conforming to is : 13592 type a, including jointing with seal ring conforming to is : 5382, leaving 10 mm gap for thermal expansion.shoe ( plain ) 110 mm shoe 42 providing and applying of swellable type water stop tape, 19mm x 25mm thick in linear meter ( expansive nature ) for construction joints treatment of rcc structure such as raft slab, retaining walls, water storage tank and at the junctions of raft slab with the retaining walls etc.. after cleaning the surface, one coat of required primer for swellable water stop tape shall be applied throughout the length of the joint @3.78 litre per 240 running meter. over the primed surface swellable type water stop tape shall be placed. the work shall be carried out all complete as per specification and the direction of the engineer in charge. the product performance shall carry guarantee for 10 years against any leakage. 43 filling the gap in between aluminium / stone / wood frame and adjacent rcc / brick / stone / wood / ceramic / gypsum work by providing weather / structural non sag elastomeric pu sealant over backer rod of approved qualityand direction of engineer in charge complete, complying to astm c920, din 18540 f & iso 11600upto 20 mm depth and 20 mm width 44 providing and fixing double scaffolding system ( cup lock type ) on the exterior side, up to seven story height made with 40 mm dia m.s. tube 1.5 m centre to centre, horizontal & vertical tubes joining with cup & lock system with m.s. tubes, m.s. tube challies, m.s. clamps and m.s. staircase system in the scaffolding for working platform etc. and maintaining it in a serviceable condition for the required duration as approved and removing it there after .the scaffolding system shall be stiffened with bracings, runners, connection with the building etc wherever required for inspection of work at required locations with essential safety features for the workmen etc. complete as per directions and approval of engineer in charge .the elevational area of the scaffolding shall be measured for payment purpose .the payment will be made once irrespective of duration of scaffolding. note: this item to be used for maintenance work judicially, necessary deduction for scaffolding in the existing item to be done 45 dismantling roofing including ridges, hips, valleys and guttersetc., andstacking the material within 50 metres lead :g.s. sheet 46 steel work in built up tubular ( round, square or rectangular hollow tubes etc. ) trusses etc., including cutting, hoisting, fixing in position and applying a priming coat of approved steel primer, including welding and bolted with special shaped washers etc. complete. hot finished seamless type tubes 47 supplying and fixing of polycarbonate sheet embossed clear sheet both side uv solid plain / corrugated sheet of 3mm thick to cover over the existing ms structure at all levels as per direction of engineer in charge. the rate is inclusive of aluminium snap beading with rubber, silicone sealant, self tap screws & labours etc., complete....