tender for mechanically scrubbing cleaning and flushing in existing c.i/d.i a.c main and distribution pipe line of 450 mtr. of 100 mm. dia at ---- lane of pallab paul in ward no-2 under bidhannagar municipal corporation. (fund -general fund ) - mechanically scrubbing cleaning and flushing in existing c.i/d.i a.c main and distribution pipe line of 450 mtr. of 100 mm. dia at narendranagar (i) lane of tapan chakraborty house (ii) lane beside netaji club (iii) lane of pallab paulin ward no-2 under bidhannagar municipal corporation. (fund : general fund ) sl. no. item description 1 dismantling all types of plain cement concrete works, stacking serviceable materials at site and removing rubbish as directed within a lead of 75 m. in ground floor including roof. (a) upto 150 mm. thick 2 earth work in excavation of foundation trenches or drains, in all sorts of soil (including mixed soil but excluding later tile or sandstone) including removing. spreading or stacking the spoils within a lead of 75 m as directed. the item includes necessary trimming the sides of trenches, levelling, dressing and ramming the bottom, bailing out as required complete. (a)depth of excavation not exceeding 1,500mm. 3 mechanical scrubbing cleaning scouring & flushing of water mains by cutting at least 50mts. appart by cutting trenches irrespective of any pavements & making joints with matching mechanical compression flexible collar coupling jointing (as per is: 8329) complete with sealing rubber gasket of epdm quality (is:5382/1985 type - 4), cast iron follower glands and mild steel nut bolts (zinc coated), mending good the trenches temporarily as per direction of engineer-in-charge by supply pipe cleaning machine pump for dewatering and socket piece double collar etc. all complete. 100 mm. 4 a) filling in foundation or plinth by silver sand in layers not exceeding 150 mm as directed and consolidating the same by thorough saturation with water, ramming complete including the cost of supply of sand. (payment to be made on measurement of finished quantity) 5 supplying and laying polythene sheet (150gm / sq.m.) over damp proof course or below flooring or roof terracing or in foundation or in foundation trenches 6 ordinary cement concrete (mix 1:1.5:3) with graded stone chips (20 mm nominal size) excluding shuttering and reinforcement if any, in ground floor as per relevant is codes. (i) pakur variety 7 single brick flat soling of picked jhama bricks including ramming and dressing bed to proper level and filling joints with local sand. 8 hire charges of 5 h.p diesel pump with all accessories operator fuel @ 8 hours per day