PROVN OF VARIOUS REV WORK AND MINOR WORK AT BAISHAKI MIL STN UNDER GE 859 EWS TAWANG

Excavating in trenches, n exc 1.5 m wide and n 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 in hard/dense soil complete all as specified and directed.

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

M&L for Sand cushion under floors or in foundations including watering and consolidation complete all as specified and directed.

Removing excavated material n exc. 50m and depositing where directed at a level n exc. 1.5 m above the starting point complete all as specified and directed.

M&L for Hardcore of broken stone or boldours of gauge n exc. 63 mm, deposited, spread and levelled in layers n exc 15 cm thick, watered and rammed to a true surface complete all as specified and directed by Engr-in-Charge.

M&L for cement concrete 1:4:8 type D2 (40 mm graged aggregate) as in foundation and filling mass concrete complete all as specified and directed by Engr-in-Charge.

M&L for cement concrete type B1, 1:2:4 (20 mm graged aggregate) in surface channels and drains complete all as specified and directed by Engr-in-Charge.

M&L for PCC Type B1, 1:2:4 (20mm graded aggregate) walls or retaining walls, any thickness, size or shape including pilasters, buttresses columns, pillars, boundary pillars and posts (including caps and bases) complete all as specified and directed by Engr-in-Charge.

Providing cement concrete Type B1 1:2:4 (20mm graded aggregate) as in roof kerbs or mud stops, rounded or chamfered on edges complete all as specified and directed by Engr-in-Charge.

M&L for Type B1, 1:2:4 (20mm graded aggregate) Pre-cast cement concrete block masonry with solid blocks, exc. 10 cm in width and setting in mortar mortar 1:6, complete complete all as specified and directed by Engr-in-Charge.