REPAIR/REPLACEMENT AND CLEANING OF SEWER LINES, MANHOLES, SEPTIC TANK ETC AT AAD CENTRE AND AAD RECORDS UNDER GE (I) GOS

Demolition of cement concrete un reinforced in ground floor and paving n exc 15cm thick (below or above ground level) complete all as specified and directed.

M&L for PCC 1:4:8 type D2 using 40mm graded stone aggregate as in foundation filling and mass concrete complete all as specified and directed.

M&L for PCC 1:3:6 type C-1 using 20 mm graded stone aggregate as in surface channels and drains complete all as specified and directed.

M&L for PCC 1:2:4 type B-1 using 20 mm graded stone aggregate as in lintels upto 1.5 m clear span, coping, benching, bed block, lintel band, plinth courses etc and similar work including weathering,slightly rounded or chamfered angles and throating including necessary form work complete all as specified and directed.

M&L for 100 mm thick Cement concrete 1:4:8 type D-2 using 40 mm graded stone aggregate as in sub base complete all as specified and directed.

M&L for 100mm thick PCC 1:2:4 Type B-1 using 20mm graded stone aggregate in pavement/hard-standing laid in alternative panels, surface finished even and smooth with using extra cement, including necessary form work, complete all as specified and directed.

M/L hard core gauge n.exc 63 mm deposited spread & levelled in layars n exc 15 cm thick watered & rammed in a true surface using broken stone or boulder .

Demolition of brick work or stone/boulder masonry built in cement mortar including all quoins, arches, pillars etc complete all as specified and directed.

M&L for walling of squared rubble, regular coursed, well bonded, bedded and solidly hearted built in cement mortar 1:6 complete all as specified and directed.

M&L old size Brick work using fly ash bricks straight or curved on plan exc 6m mean radius built in CM 1:6 complete all as specified and directed.