Indian Institute Of Technology Tender

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 within all lead and lift.

Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work up to plinth level : a) 1:2:4 (1 cement : 2 coarse sand(zone-III) derived from natural sources : 4 graded stone aggregate 20 mm nominal size derived from natural sources) as per entire satisfaction and direction of Engineer -in-charge including carriage of material within all lead and lift.

Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work up to plinth level : a) 1:3:6 (1 Cement : 3 coarse sand(zone-III) derived from natural sources : 6 graded stone aggregate 20 mm nominal size derived from natural sources) as per entire satisfaction and direction of Engineer -in-charge including carriage of material within all lead and lift.

Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work up to plinth level : a) 1:4:8 (1 Cement : 4 coarse sand (zone-III) derived from natural sources : 8 graded stone aggregate 40 mm nominal size derived from natural sources) as per entire satisfaction and direction of Engineer -in-charge including carriage of material within all lead and lift.

Centering and shuttering including strutting, propping etc. and removal of form work for : a) Retaining walls, return walls, walls (any thickness) including attached pilasters, buttresses, plinth and string courses fillets, kerbs and steps etc. as per entire satisfaction and direction of Engineer -in-charge including carriage of material within all lead and lift.

Providing and laying in position specified grade of reinforced cement concrete, excluding the cost of centering, shuttering, finishing and reinforcement - All work up to plinth level : a) 1:1.5:3 (1 cement : 1.5 coarse sand (zone-III): 3 graded stone aggregate 20 mm nominal size) as per entire satisfaction and direction of Engineer -in-charge including carriage of material within all lead and lift.

Centering and shuttering including strutting, propping etc. and removal of form for : a) Foundations, footings, bases of columns, etc. for mass concrete as per entire satisfaction and direction of Engineer -in-charge including carriage of material within all lead and lift.

Steel reinforcement for R.C.C. work including straightening, cutting, bending, placing in position and binding all complete upto plinth level. a) Thermo-Mechanically Treated bars of grade Fe-500D or more as per entire satisfaction and direction of Engineer -in-charge including carriage of material within all lead and lift.

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 and using recycled concrete aggregate (RCA) as coarse aggregate and fine aggregate within permissible utilization of 20% each, 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 110% of the specified minimum cement content, the contractor shall have discretion to either re-design the mix or bear the cost of extra cement a) All works upto plinth level i) Concrete of M25 grade with minimum cement content of 330 kg /cum as per entire satisfaction and direction of Engineer -in-charge including carriage of material within all lead and lift.

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 and using recycled concrete aggregate (RCA) as coarse aggregate and fine aggregate within permissible utilization of 20% each, 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 110% of the specified minimum cement content, the contractor shall have discretion to either re-design the mix or bear the cost of extra cement a) All works upto plinth level i) Add for Extra Cement in terms of design mix over the specified cement content therein as per entire satisfaction and direction of Engineer -in-charge including carriage of material within all lead and lift.

A/R Providing and fixing 110mm dia Unplasticized rigid PVC pipe of required size for weep holes in plum concrete walls including cutting,placing and fixing in required slope all complete as per entire satisfaction and direction of Engineer -in-charge including carriage of material within all lead and lift. a)110mm dia as per entire satisfaction and direction of Engineer -in-charge including carriage of material within all lead and lift.

Cement pressure grouting through Hollow/Solid Rock anchor of outer dia 76/51/38/32/25 in rock/overburden including all cost of material and equipments required to complete the grouting work at desired presure a) outer dia 76/51/38/32/25 as per entire satisfaction and direction of Engineer -in-charge including carriage of material within all lead and lift.

Supply and installation of Self driven rock anchor made of 40CR material with outer dia of 38mm and inner dia 19mm, Yield load carrying cpacity of min 400kn/m in soil/overburden /rock suitable for drilling, placing and cement grouting. Installation with all accessories such as 76 mm dia drill bit, coupler, 10mm thick base plate and nut and bolt complete in all respect but excluding the cost of cement grouting which will be paid extra as per relevant BOQ item. a) 40CR material with outer dia of 38mm and inner dia 19mm as per entire satisfaction and direction of Engineer -in-charge including carriage of material within all lead and lift.

Providing & making Gabion structure with Mechanically Woven Double Twisted Hexagonal Shaped Wire mesh Gabion Boxes as per IS 16014:2012, MORTH Clause 2500, of required size, Mesh Type 10x12 (D=100 mm with tolerance of ± 2%) zinc coated, Mesh wire diameter 3.0 mm, mechanically edged/ selvedged with partitions at every 1m interval and shall have minimum 10 numbers of openings per meter of mesh perpendicular to twist, tying with lacing wire of diameter 2.2mm, supplied @3% by weight of Gabion boxes, filled with boulders with least dimension of 200 mm, as per drawing, all complete as per entire satisfaction and direction of Engineer -in-charge including carriage of material within all lead and lift.

Providing and laying hard stone filing/soling including carriage of material with in all lead & lift as per entire satisfaction and direction of Engineer - in - charge.

Providing, laying and fixing of membrane with Geotextile, 120 gsm non woven, 100% polyester of thickness 1 to 1.25 mm rapped to the backside of gabion walls as per entire satisfaction and direction of Engineer -in-charge including carriage of material within all lead and lift.

Supplying and laying high strength flexible geogrids (HSFG) as soil reinforcement / basal reinforcement as per MORTH 3100 and IRC 113, made of high tenacity polyester core with polyethylene coating with Minimum Long Term Design Strength (LTDS) of more than 50% of ultimate tensile strength at 30 degree Celcius corresponding to 12 % strain. Ultimate tensile strength- 800 kN/m as per entire satisfaction and direction of Engineer -in-charge including carriage of material within all lead and lift.