tender for annual maintenance of ephs in sector-17, u/e, kurukshetra. “restore and improvement of damage constructed surface with cc 1:1.5:3 complete in all respect”.; 1 [10.77]providing and laying 80mm thick factory made cement concrete interlocking paver block of m -35 grade made by block making machine with strong vibratory compaction, of approved size, design and shape, laid in required colour and pattern over (bis 15658:2006) and including 60mm thick compacted bed of coarse sand, filling the joints with line sand etc. all complete as per the direction of engineer-in-charge. 2 [5.23.1]demolishing cement concrete manually/ by mechanical means including disposal of material within 50 metres lead as per direction of engineer - in - charge. 1. nominal concrete 1:1.5:3 or richer mix (i/c equivalent design mix) 3 [6.1.1]providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - all work below plinth level and up to floor iv level: 1. 1:1½:3 (1 cement: 1½ coarse sand (zone-iii) : 3 graded stone aggregate 20 mm nominal size) 4 [6.1.6]providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - all work below plinth level and up to floor iv level: 6. 1:4:8 (1 cement : 4 coarse sand (zone-iii) : 8 graded stone aggregate 40 mm nominal size)