CONSTR OF RETAINING WALL AT VARIOUS LOCS IN LEBONG CANTT UNDER AGE (I) DARJEELING

Excavatingin 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 including forming bottom surface to required level or slope, complete all as specified and directed.

Ditto all as per item No 1 above but depth exc 1.5 mtr and n. Exc 3.0 mtr complete.

M&L for plain cement concrete (1:4:8), type D2 (using 40 mm graded stone aggregates) as in foundation, filling and mass concrete, complete all as specified and directed.

M&L for walling of random rubble, uncoursed, well bonded, bedded and solidly hearted, built in cement mortar 1:6 complete all as specified and as directed.

Extra over stone walling for hammer dressing to face stones (Granite or Trap stone) and dressing 40mm of face beds and joints, as specified, of random rubble walling, uncoursed or brought upto courses complete all as specified and as directed.

M&L for plain cement concrete (1:3:6), type C-1 (using 20 mm graded crushed stone aggregate) as in bed blocks for grouting hold fasts, coping, filling in pressed steel chowkat or similar work including weathering, slightly rounded or chamfered angles and throating, including necessary form work, complete all as specified and directed.

Supply only 110mm bore PVC (SWR) pipe single socketed, in any length with rubber ring joints, as in weep holes, all as specified and directed.

M&L for Raised pointing to random or poly gonal rubble,un coursed or brought upto courses in cement mortar 1:4. complete all as specified and as directed.

M&L for preparation of new plastered or unplastered or pointing surfaces of wall and applying two coat of white wash , complete all as specified and directed.

M&L for plain cement concrete(1:3:6), type C-2 (40 mm graded stone aggregate) in surface channels and drains including all necessary form work, 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, fiar finished surfaces of concrete on flat surface, complete all as specified and directed.

M&L for extra for forming fair finished drain or channel 30 cm inner girth in cement concrete, using extra cement including forms, moulds mitered / stopped ends etc all as specified and as directed.

M&L for 75 mm thick plain cement concrete(1:3:6), type C2 (40 mm graded stone aggregate) as in flooring, plinth protection, hard standing, path , road side paving etc including finish the surface even and smooth with using extra cement, complete all as specified and directed.

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

Removal of surplus excavated soils to a distance not exceeding 50m and depositing where directed at a level not exceeding 1.50m above the starting point, complete all as specified and directed.

Note 1:- (Applicable for all parts/items) : The bidders/contractors are advised to read tender document, all drawings & all corrigendum / amendments and general condition of contracts before entry / quoting the rates. Note 2:-The contract sum shall be arrived at after deducting amount of schedule of credit from the total quoted amount.