External Development Works around Research Park Sports Area CD31 Road including Earthwork Slope Protection Erosion Control Works and other allied works for protection and preservation of earth grading at IITGN Palaj Gandhinagar

Amount

Slope compaction using Hydraulic Excavator (3D) with driver and fuel

Earth work in surface excavation not exceeding 30 cm in depth but exceeding 1.5 m in width as well as 10 sqm on plan including getting out and disposal of excavated earth upto 50 m and lift upto 1.5 m, as directed by Engineer-in- Charge:

All kinds of soil

Banking excavated earth in layers not exceeding 20 cm in depth, breaking clods, watering, rolling each layer with ½ tonne roller, or wooden or steel rammers, and rolling every 3rd and top-most layer with power roller of minimum 8 tonnes and dressing up, in embankments for roads, flood banks, marginal banks, and guide banks etc., lead upto 50 m and lift upto 1.5 m(Note: Deduct for not rolling with power roller of minimum 8 tonnes for banking excavated earth in layers not exceeding 20 cm in depth.)

All kinds of soil

Earth work in excavation by mechanical means (Hydraulic excavator)/ manual means over areas (exceeding 30 cm in depth, 1.5 m in width as well as 10 sqm on plan) including getting out and disposal of excavated earth lead upto 50 m and lift upto 1.5 m, as directed by Engineer-in?charge

All kinds of soil

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

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

Supplying and filling in plinth with sand under floors, including watering, ramming, consolidating and dressing complete

Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work up to plinth level :

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)

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)

Providing and laying in position ready mixed or site batched design mix cement concrete for plain 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 and finishing 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 minimum specified cement content, the contractor shall have discretion to either re-design the mix or bear the cost of extra cement.All works upto plinth level :

Concrete of M10 grade with minimum cement content of 220 kg /cum

Concrete of M15 grade with minimum cement content of 240 kg /cum

Centering and shuttering including strutting, propping etc. and removal of form for

Foundations, footings, bases of columns, etc. for mass concrete

Walls (any thickness) including attached pilasters, butteresses, plinth and string courses etc

Lintels, beams, plinth beams, girders, bressumers and cantilevers

Columns, Pillars, Piers, Abutments, Posts and Struts

Steel reinforcement for R.C.C. work including straightening, cutting, bending, placing in position and binding all complete upto plinth level.

Thermo-Mechanically Treated bars of grade Fe-500D or more

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 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.

Concrete of M25 grade with minimum cement content of 330 kg /cum

Cement plaster 1:3 (1 cement: 3 coarse sand) finished with a floating coat of neat cement.

20 mm cement plaster

Pointing on stone work with cement mortar 1:3 (1 cement : 3 fine sand) :

Flush/ Ruled pointing

Extra for covering top of membrane with Geotextile, 120 gsm non woven, 100% polyester of thickness 1 to 1.25 mm bonded to the membrane with intermittent touch by heating the membrane by Butane Torch as per manufactures recommendation

Preparation and consolidation of sub grade with power road roller of 8 to 12 tonne capacity after excavating earth to an average of 22.5 cm depth, dressing to camber and consolidating with road roller including making good the undulations etc. and re-rolling the sub grade and disposal of surplus earthwith lead upto 50 metres

Providing and laying at or near ground level factory made kerb stone of M-25 grade cement concrete in position to the required line, level and curvature, jointed with cement mortar 1:3 (1 cement: 3 coarse sand), including making joints with or without grooves (thickness of joints except at sharp curve shall not to more than 5mm), including making drainage opening wherever required complete etc. as per direction of Engineer-in-charge (length of finished kerb edging shall be measured for payment). (Precast C.C. kerb stone shall be approved by Engineer-in-charge)

Supplying and stacking of hard stone (for stone pitching) 22.5 cm thick at site.

Dry stone pitching 22.5 cm thick laid in courses and required profile with hammer dressed stones having no side less than 15 cm, with minimum depth of 20 cm including preparing the bedding surface etc. all complete. (Payment for Stone to be made separately

Supplying, filling, spreading & leveling stone boulders of size range 5 cm to 20 cm, in recharge pit, in the required thickness, for all leads & lifts, all complete as per direction of Engineer-in-charge

Providing,and fixing in place U Shape " Factory made" precast RCC drain in units of length not exceeding 2000 mm, with perforated cover of approved size and pattern made of high performance Self Compacting Concrete of minimum M-40 grade including bed preparation with 20mm thick levelling cement mortar 1:3 (1 Cement: 3 Sand) including Jointing work of drain / lid with high performance concrete/microconcrete and lid, storm water U Shape drain with Lid of required internal size and dimensions. The product shall have tie shape groove of 10-20 mm width X 25 mm depth as per relevant standard codes on both sides of each precast unit product for jointing two precast units The drain shall have varying wall thickness as per approved size, steam cured, minimum reinforcement @40 kg/ cum Fe 500 D TMT steel as per details and with a smooth surface as per instruction of Engineer-in-charge.The Precast U Shape drain should have special in built insert at appropriate location for fixing De-Shackle for mechanical installation. The rate includes all levys, taxes, loading, unloading, transportation, hoisting and lowering in place, jointing, all labours and materials at all leads and lifts within IITGN campus.( Make : Fuji, Urbanaac, Magicrete)

600 (width) ×600 (depth) × 65 to 80 mm wall thickness with 730 (w) x 500 (L) mm size top cover

Supplying Of non-woven Erosion Control Blanket(ECB) as per approved sample made from non woven coconut fibre reinforced with closely woven polymer nettings on both sides (Double Punched) (with minimum aperture size of not greater than 2mm). Tensile strength of ECB shall not be less than 7KN/M in machine direction and 1.5 KN/M in cross direction. The nominal weight of the ECB shall be 600 gm/sqm and thickness to be 7 mm to 8 mm ( compressed thickness 4 mm to 5 mm). Roll Size: - 1.1 x 50 M (L) = 55 SQM

PROVIDING AND FIXING WEEP HOLES IN ABUTMENTS, WING WALLS AND RETURN WALLS WITH 110 MM DIA U-PVC PIPES TYPE A ISI MARKED WITH ALL CONTRACTOR'S MEN, MATERIAL TRANSPORTATION , ALL TAXES AS PER SPECIFICATIONS AND AS DIRECTED BY ENGINEER-IN-CHARGE

Bhoomi Construction Co.