bids are invited for protective wk (supply and construction) 1 excavation over area n.exe 1.5m deep 2 returning filling incl spreading 3 removing excavated material to a distance 50mtr 4 cement opc 43 grade in hdpe bag of 50 kgs each conforming to is 8112-1989. 5 rapidite quick setting compound @ 1 ltr per bag 6 aggregate 20mm. stone aggregate to be crushed rock or grave 20mm graded conforming to is 383-1970 (second revision) and shall consist or angular fragments and shall be clean, hard, tough durable and of uniform quality through out. 7 aggregate 40mm. stone aggregate to be crushed rock or gravell 20mm graded conforming to is 383-1970 (second revision) and shall consist or angular fragments and shall be clean, hard, tough durable and of uniform quality through out. 8 natural sand conforming to is 383-1970 (specifications for coarse and fine aggregates. free from adherent costing -hard, durable, clean and shall not contain clay and impurities such iron pyrites, alkalies, salt, coal, mica, shale or similar laminates or other materials exceeding the specified limits in is code aggregates for concrete. 9 dressed stone ready to use for random rubble stone masonary 150mm to 250mm and length not exceeding 3 times height or width 10 stone boulder 150-200mm dia varying from 150mm to 200mm and length not exceeding 1 times height/width 12mm thick plywood 12 150mm pvc pipe for 10 long for weep holes 1 excavating in trenches n exc 1.5m wide and nexc 1.5m depth 2 removing excavated material to a distance 50mtr 3 cement opc 43 grade in hdpe bag of 50 kgs each conforming to is 8112-1989. 4 rapidite quick setting compound @ 1 ltr per bag 5 aggregate 20mm. stone aggregate to be crushed rock or gravel 20mm graded conforming to is 383-1970 (second revision) and shall consist or angular fragments and shall be clean, hard, tough, durable and of uniform quality through out. 6 natural sand conforming to is 383-1970 (specifications for coarse and fine aggregates. free from adherent coating, hard, durable, clean and shall not contain clay and impurities such iron pyrites, alkalies, salt, coal, mica, shale or similar laminates or other materials exceeding the specified limits in is code aggregates for concrete. 7 pcc block masonry of size 400x200x200mm total quantity : 2