r/m & upkeep of itpo premises at bharat mandapam during 2024-25sub-head: providing and laying interlocking tiles behind hall no.6 along with boundary wall, hall no-14opposite hall no -11 & parreller suprime courtboundary wall opposite to mrs-2.; 1 demolishing cement concrete manually/ by mechanical means including disposal of material within 50 metres lead as per direction of engineer - in - charge.nominal concrete 1:4:8 or leaner mix (i/c equivalent design mix) 2 surface dressing of the ground including removing vegetation and inequalities not exceeding 15 cm deep and disposal of rubbish, lead up to 50 m and lift up to 1.5 m.2.28.1 all kinds of soil sqm 3 providing and laying in position ready mixed or site batched designmix cement concrete for plain cement concrete work; using coarse aggregate and fine aggregate derived from natural sources, portland pozzolana/ordinary portland /portland slag cement, admixtures in recommended proportions as per is: 9103 to accelerate / retard settingof concrete, to improve durability and workability without impairing strength; including pumping of concrete to site of laying, curing, carriage for all leads; but excluding the cost of centering, shuttering and finishing as per direction of the engineer-in-charge; for the following grades of concrete.note: extra cement up to 10% of the minimum specified cement content in design mix shall be payable separately. in case the cement content in design mix is more than 110% of the minimum specified cement content, the contractor shall have discretion to either re-design the mix or bear the cost of extra cement. 4 providing and laying factory made chamfered edge cement concrete paver blocks in footpath, parks, lawns, drive ways or light traffic parking etc, of required strength, thickness & size/ shape, made by table vibratory method using pu mould, laid in required colour & pattern over 50mm thick compacted bed of sand, compacting and proper embedding/laying of inter locking paver blocks into the sand bedding layer through vibratory compaction by using plate vibrator,filling the joints with sand and cutting of paver blocks as per required size and pattern, finishing and sweeping extra sand. complete all as per direction of engineer-in-charge. 80 mm thick c.c. paver block of m-30 grade with approved color design and pattern. 5 taking out existing cc interlocking paver blocks from footpath/ central verge, including removal of rubbish etc., disposal of unserviceable material to the dumping ground, for which payment shall be made separately and stacking of serviceable material within 50 metre lead as per direction of engineer-in-charge. 6 laying old cement cocrete interlocking paver blocks of any design/ shape laid in required line, level, curvature, colour and pattern over and including 50 mm thick compacted bed of coarse sand, filling the joints with fine sand etc. all complete as per the direction of engineering- charge. (old cc paver blocks shall be supplied by the department free of cost). 7 disposal of building rubbish / malba / similar unserviceable, dismantled or waste materials by mechanical means, including loading, transporting, unloading to approved municipal dumping ground or as approved by engineer-in-charge, beyond 50 m initial lead, for all leads including all lifts involved.