Bodoland Territorial Council Tender

Dry stone pitching 22.5 cm thick including supply of stones and preparing surface complete.

Procuring, supplying, transporting to site, unloading, stacking of 6.6 mm, 4kg/sqm needle punched reinforced composite geosynthetic clay liner comprised of uniform layer of sodium bentonite encapsulated between a woven and nonwoen geotextile of approved quality, size and make as detailed in material specifications, quality assurance plan & drawings on bottom and side liner. Supply and laying of GCL liner material at site

Procuring, supplying, transporting to site, unloading, stacking of 1.5 mm thick HDPE sheet of approved quality, size and make as detailed in material specifications, quality assurance plan & drawings on bottom and side liner. Supply, laying and welding of 1.5mm both side textured HDPE liner material at site

Supplying & laying of drainage composite for use behind walls, between two different fills, alongside drains of road, below concrete lining of canals etc. Geocomposite for planar drainage, realized by thermobonding a draining core in extruded monofilaments with two filtering nonwoven geotextiles that may also be working as separation or protecting layers. The draining three dimensional core will have a “W” configuration as longitudinal parallel channels. Minimum thickness to be 7.2mm, with two filtering UV stabilized polypropylene nonwoven geotextile of minimum thickness of 0.75mm charecteristic opening size (O90) of 110 micron and tensile strength of 8.0 kN/m that will be working as separation or protecting layer, geocomposite having in plane flow capacity of 2.1 L / (m.s) at hydraulic gradient of 1.0 & 20 kPa pressure and tensile strength of 18 kN/m , with mass per unit area of 740 gsm, supplied in the form of roll for easy transportation to site of work as per detailed specification all complete as per directions of Engineer in charge.

Providing, Laying, Jointing & field testing of HDPE pipes (High Density Polyethylene Pipes-PE 100) confirming to IS 4984/2016 (with up to date amendment) with necessary jointing material like mechanical connector of jointing pipes by heating the ends of pipes with the help of Teflon coated electric mirror/ heater to the required temperature and then pressing the ends together against each other, to form a monolithic & leak proof joint by thermosetting process. It may be required to be done with Jack/ Hydraulic Jacks/ Butt fusion machine.(50 mm & above fusion jointed & below 50mm mechanical jointed). The HDPE fitting should be ISI marked conforming to relevant BIS code 160 mm dia HDPE PN6

140 mm dia HDPE PN6

Random rubble masonry with hard stone in foundation and plinth including levelling up with cement concrete 1:6:12 (1 cement : 6 coarse sand : 12 graded stone aggregate 20 mm nominal size) upto plinth level with : Cement mortar 1:6 (1 cement : 6 coarse sand)

Construction of RCC UG Sump 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-incharge. All kinds of soil

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 sand (zone-III) derived from natural sources : 6 graded stone aggregate 20 mm nominal size derived from natural sources)

Centering and shuttering including strutting, propping etc. and removal of form for Walls (any thickness) including attached pilasters, butteresses, plinth and string courses etc.

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 : 1:1.5:3 (1 cement : 1.5 coarse sand (zone-III) derived from natural sources : 3 graded stone aggregate 20 mm nominal size de rived from natural sources)

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

Submersible Pump (2 HP)

Construction of Stormwater Drain 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-incharge. All kinds of soil

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 sand (zone-III) derived from natural sources : 6 graded stone aggregate 20 mm nominal size derived from natural sources)

Brick work with common burnt clay F.P.S. (non modular) bricks of class designation 7.5 in foundation and plinth in: Cement mortar 1:4 (1 cement : 4 coarse sand)

12 mm cement plaster of mix : 1:4 (1 cement: 4 fine sand)

Annual Maintenance Cost (AMC) AMC for the Period of (5) years for the supplied technologies, machineries, tools & equipment.

Operation and Maintenance (O&M) O & M for the Period of (5) years for the entire project