CLEANING AND REPAIR TO RUNWAY DRAINAGE IN TECH AREA AT AFS THANJAVUR

Amount

Carefully lifting/taking out the suspended RCC drain cover slab laid over drain of any size upto 1.5 Sqm in plan area without damaging and placing in its original position after completion of repair/de-silting work complete all as specified and as directed . Note : As the work area is inside Airfield area where frequent flying operations held. Hence, the repair work must done quickly and placing of RCC cover slabs properly placed on the same day end. so that no RCC covers shall be left/kept unplaced in position over the drains around the airfield area/ground. The RCC Slab removal shall be carried out in consultation with the users wrt the flying schedule.

Excavating deposited spoil/silt/mud etc from the existing storm water drainage system and cleaning the bottom surfaces for smooth flow of water and removal of the same to a distance exceeding 50 m but n. exc 250 m complete all as specified and as directed.

Demolition of brick or stone boulder masonry built in cement mortar or cement lime mortar complete all as specified and as directed.

Taking down cement plaster of any description incl. racking out joint hacking for key scrubbing down with water etc. complete all as specified

M&L for brick work with sub class 'B' bricks bult in CM 1:4 straight or curved on plain n.exc 6 m radius complete all as specified

Rendering 15mm thick CM 1:4 on fair faces of brick work or concrete surfaces and rendering is to be finished fair and even complete all as specified

M&L for Plain cement concrete 1:2:4 , type B1 (using 20 mm graded stone agg,) as in coping including necessary formwork, finishing, exposed surface of concrete to even and fair complete all as specified and as directed.

M&L for removal of rubber deposits in both rigid / flexible from the runway surfaces by means of high pressure water and other mechanical means to remove the rubber deposits arised from wear & tare of tires builds up over runway without damaging the existing runway surfaces and without using of any chemical. Notes:- (i) Water working pressure shall be upto 2500 bar/ 36000 PSI. (ii) Water consumption shall be 20-30 ltr/minute. (iii) Should have an inbuilt suction system for removing waste water and rubber deposits etc (ii) Should be capable of removing rubber deposit/paint marking from asphalt/ concrete surfaces without damaging the surface layer. (iii) The equipment should have hydrostatic slow motion drive so that the truck moves in uniform slow speed during rubber removal operation without causing any damage to the runway surfaces. (iv) Minimum width of rubber removal in one stroke should not be less than 600 mm.

M&L for dismantling of reinforced cement concrete of any description and in any position not otherwise specifically provided so far (reinforcement cut as required to facilitate demolition) and disposing the debris off the permises complete all as specified and as directed

M&L for providing precast cement concrete cover slab mix of M-20 (using 20mm graded aggregate) set in cm 1:4 complete all as specified and as directed.

M&L for Mild steel TMT bars 10mm dia and over, cut to length, bent to shape required, including cranking, bending spirally for hooping for columns, hooking ends and binding with and including mild steel wire (annealed) not less than 0.9mm dia or securing with clips complete all as specified and as directed.

M&L for 75mm thickness earth filling in berms/low level filling using moorum/red bajri including necessary excavation, spreading, levelling, watering rolling consolidating and finishing the surface with 2 to 5 tonne power rollers complete all as specified and as directed.

M/S. SRI RAMANUJA CONSTRUCTIONS

R K BUILDERS