bids are invited for custom bid for services - ---- total quantity :---1 excavation<1.5m earth work in excavation upto required depth below existing ground level upto required depth including removal of vegetation,shrubs and debris cutting and dressing the sides in slopes and bottom, levelling, grading and ramming of bottoms, bailing out of water , supplying of temporary supports to existing services line like water pipes,sewage pipes,electric overhead and u/g cables etc all if encountered, shoring, strutting and disposal of excavated earth anywhere inside bpcls premises as directed by the engineer in charge, complete. payment shall be made as per the actual measurement but not more than excavation plan.also no payment would be made for extra excavation for making slopes etc.the excavated earth to be spread in loose 150 mm thick layers, watered, rolled andwell consolidated using suitable compactors.the density to be achieved shall not be less than 90% of the density obtained in the laboratory (modified proctor method) (payment against this item shall be released only for the earth being disposed inside bpcl premises)depth upto 1.5 m normal soil m3 183.00 2 providing and laying of p.c.c 1:4:8 providing and laying plain cement concrete for all depths below and upto plinth level in foundations,drains,fillings, non-suspended floors, pavements & ramps or any other works etc.including the cost ofposition cement concrete of specified grade including the cost ofcentring and shuttering, tamping, ramming, vibrating,curing, in anyshape,position,thickness and finishing the top surface rough or smooth,etc. all complete as per directions of engineer-in-charge. - all work upto plinth levelmanufactured sand is permitted based on meeting the acceptance criteria;:4:8 (1 cement: 4 coarse sand : 8 crushed stone aggregate 40 mm nominal size)