CONSTRUCTION OF RAIN WATER HARVESTING POND IN TECHNOPARK PHASE I CAMPUS, TRIVANDRUM

Amount

Clearing jungle including uprooting of rank vegetation, grass, brush wood, trees and saplings of girth up to 30 cm measured at a height of 1 m above ground level and removal of rubbish up to a distance of 500 m outside the periphery of the area cleared The rate inclusive of all material charge, labour, transportation scaffolding (If needed) loading/Unloading at the work space etc complete as per the direction of engineer in charge.

Felling and uprooting of trees of the girth (measured at a height of 1 m above ground level) including cutting of trunks and branches, removing roots and stacking of serviceable material and disposal of unserviceable material. Beyound 30 cm girth up to and including 60 cm girth The rate inclusive of all material charge, labour, transportation scaffolding (If needed) loading/Unloading at the work space etc complete as per the direction of engineer in charge.

Felling and uprooting of trees of the girth (measured at a height of 1 m above ground level) including cutting of trunks and branches, removing the roots and stacking of serviceable material and disposal of unserviceable material. Beyound 60 cm girth up to and including 120 cm girth The rate inclusive of all material charge, labour, transportation scaffolding (If needed) loading/Unloading at the work space etc complete as per the direction of engineer in charge.

Felling trees of the girth (measured at a height of 1 m above ground level) including cutting of trunks and branches, removing the roots and stacking of serviceable material and disposal of unserviceable material. Beyond 120 cm girth up to and including 240 cm girth The rate inclusive of all material charge, labour, transportation scaffolding (If needed) loading/Unloading at the work space etc complete as per the direction of engineer in charge.

Earth work in excavation by mechanical means (Hydraulic excavator)/manual means over areas (exceeding 30 cm in depth, 4.0 m ) in water loged area including disposal of excavated earth, lead up to 2km and lift up to 4 m. Work may be executed in or under water and/ or liquid mud, including pumping out water as required, disposed earth to be levelled and neatly dressed. All kinds of soil The rate inclusive of all material charge, labour, transportation scaffolding (If needed) loading/Unloading at the work space etc complete as per the direction of engineer in charge. Measurements shall be taken strictily by recording levels duly signed by Engineer-in-charge

Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - Mix 1:4:8 (1 cement : 4 coarse sand : 8 graded stone aggregate 40 nominal size) as per the site conditions. The rate is inclusive of all material charge, labour, transportation scaffolding (If needed) loading/Unloading at the work space etc complete as per the direction of engineer in charge.

Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - 1:3:6 ( 1 cement : 3 coarse sand : 6 graded stone aggregate 40 mm nominal size) as per the site conditions. The rate is inclusive of all material charge, labour, transportation scaffolding (If needed) loading/Unloading at the work space etc complete as per the direction of engineer in charge.

Filling with contractor own earth (excluding rock) in open areas in layers not exceeding 20 cm in depth, consolidating each deposited layer by ramming and watering, as per direction of site Engineer-in-charge. Work may be executed in or under water and/ or liquid mud, including pumping out water as required at site.The rate is inclusive of all material charge, labour, transportation scaffolding (If needed) loading/Unloading at the work space etc complete as per the direction of engineer in charge. Measurements shall be taken strictily by recording levels duly signed by Engineer-in-charge.

Hollow block masonry using pre cast blocks ( Factory made) of size 40x20x15cm or nearest available size confirming to IS 2185 part 1 of 1979 for foundation and plinth with thickness 15cm in: CM 1:6 ( 1 cement : 6 coarse sand ) etc complete The rate inclusive of all material charge, labour, transportation scaffolding (If needed) loading/Unloading at the work space etc complete as per the direction of engineer in charge.

12 mm cement plaster of mix: 1:6 (1 cement : 6 fine sand). The rate inclusive of all material charge, labour, transportation scaffolding (If needed) loading/Unloading at the work space etc complete as per the direction of engineer in charge.

Supply, laying and installation of 2.00 mm thick GSE make GSE HD 100, smooth HDPE sheet (manufactured with 97.5% virgin resin and 2.5% carbon back by flat cast extrusion process and product to meet or exceed GRI GM-13 standard with thickness tolerance of +/- 10% and OIT for more than 100 minutes. The HDPE sheet shall be in perfect roll from and the width shall be 7.0mtr and length shall be more than 100 mtr. The edges of HDPE sheet should have 100 - 150 mm width permanent white line marking on one side for overlaping purpose) over a layer of 300 gsm polyester / Polypropylene Geotextile. The Geotextile shall be spread over the well prepared surface and overlaps are stitched with hand held stitching machine and taken inside the anchor trench. The HDPE sheet shall be unrolled and laid over the Geotextile with necessory overlap within the white line marking and welding the overlaps with Leister - Cement / Twinny Twedge welding machine. The HDPE sheet is taken inside the anchor. The work shall be carried out as per IS 10889:2004 and other relevant IS codes / technical specifications. The rate is inclusive of all material charge including geotextile, labour, transportation scaffolding (If needed) loading/Unloading at the work space, clearing the debris after work, etc complete as per the direction of engineer in charge.

R. Sajikumar