REPAIR MAINT OF JHORA NALAs STAIRS DRAINS AND OTHER WORKS AT MP GOLAI AND BURDONG UNDER GE GANGTOK

Excavation in trenches, not exc 1.5 m wide and not exc 1.5 m in depth; for foundation, etc. or for shafts, wells, cesspits, manholes, pier holes, etc. n exc 10 sq m on plan and n exc 1.5 m in depth and getting out all excavated material in soft / loose soil complete all as specified and directed.

Excavating over areas, not exc 1.5 m deep and getting out in soft / loose soil complete all as specified and directed.

Returning, filling in and including spreading, levelling, watering and well ramming in layers not exceeding 25 cm thick complete all as specified and as directed.

Removing of excavated surplus soil to a distance n. exc 50 m and depositing where directed at a level n. exc. 1.5 m above the starting point complete all as specified and directed.

M&L PCC 1:3:6 type C-2 (using 40 mm graded crushed stone aggregate) as in foundation filling and mass concrete including demolition complete all as specified and directed.

Use and Waste of formwork to sides of concrete foundations, footings, bases of columns, raft and raft beams, sides and soffits (if any) of foundation and plinth beams; and similar work; vertical or to batter for rough finished flat surfaces of concrete complete all as specified and directed.

Demolition of brick work or stone / boulder masonry, built in cement mortar and including all quoins, arches, pillars, etc. but excluding ashlar facings, dressed stonework and precast concrete articles complete all as specified and directed.

M&L for plain cement concrete (1:3:6), type C-2 (using 20mm graded crushed stone aggregate) as in plum concrete in retaining walls etc including filling of 200 to 300mm stone boulder plums complete all as specified and as directed. Note:- Supply of stone boulder plums shall be measured and paid seperately under relevant item

Supply only stone boulders (Basalt trap or any other approved) of size 200 to 300mm for using in plum concrete complete all as specified and directed.

Hand packing (any thickness) (except material) at back of walls over arches etc. and raising (or lowering) to the required level complete all as specified and directed. Note:- Stone boulders obtained from demolition of stone masonry item here-in-before shall be reused.