SPECIAL REPAIR TO RUNWAY 12/30, PTT, CONNECTING LINK AND ATC DISPERSAL BY APPLYING PME AT AF STATION TAMBARAM

M & L for preparing old black top surfaces by brushing with wire brushes for removing caked mud etc sweeping with brooms and finally fanning the cleaned surfaces with using air blower to remove all loose dirt etc complete and apply cold polymer modified emulsion (Rapid Setting)(PME) mopping of total cold liquid PME 0.93 to 1.00 Ltr Per Sqm (undiluted) for two coats with mineral filler as recommended by manufacturer of PME (after diluting with water), each coat diluted in the ratio 1:1 (PME : Water) and ensureuniform finish of runway and complete all as specified and as directed Note:-The tenderer shall take into consideration the following point while quoting the rate for this item care shall be taken to fill wider gaps/cracks with 0.6mm to 2.36mm size coarse sand as per manufacturer's instruction. Note:- The qty of PME to be used per Sqm shall be arrived based on 3 Nos trial patches of each size 10 x 5 Mtrs and based on the results of skid test. No extra payment shall be done for the same.

M & L for painting adequate number of coats for lines, dashes, arrows, letters etc on roads, pavements and the like exc 10cm wide aqua based road marking paint white, golden yellow etc or of any tint approved MORTH, IRTC and AAI including preparation of old painted pavement surfaces. complete all as specified and as directed

All as per serial item No 2.00 here - in - before but surfaces not exc 10 cm width or girth complete all as specified and directed.

Repair of pot holes / pin holes area exc 491 sqmm but not exc 1963 sqmm in flexible pavements / runway / PTT with ready mix Dense Asphaltic Concrete (DAC) using Polymer Modified Bitumen (PMB-40)including applying tack coat with PMBE and cutting as required i.e. shape and size and depth 30 mm incl cleaning, consolidating and ramming as required complete all as specified and directed.

Repair of pot holes / pin holes area exc 1963 sqm but not exc 7850 sqmm in flexible pavements / runway / PTT with ready mix Dense Asphaltic Concrete (DAC) using Polymer Modified Bitumen (PMB-40)including applying tack coat with PMBE and cutting as required i.e. shape and size and depth 30 mm incl cleaning, consolidating and ramming as required complete all as specified and directed.

M&L preparing existing cracks of 4 to 7 mm wide in flexible surface by brushing with wire brushes to remove all loose dust, materials etc, drying the cracks surface of moisture completely by means of mechanical driven air blower and providing Stir ShaliSeal® BT SB by a slow speed mixture (approx. 400 rpm) fitted with a suitable mixing paddle to ensure a homogenous mix. After stirring, wait for the product to settle in order to let entrapped air escape. Apply One coat of Primer Prime surface with ShaliTex® Primer @ 0.300 L / m2. Then allow it to dry for 24 hrs. After cured prime surface apply Specific Gravity of 1.20 ± 0.2, Solid Content, %, minimum 70% material of ShaliSeal® BT SB on the prime surface .Removing masking tape after application of bituminous selant joint and surface to be finished true levelled with existing adjoining pavement. complete all as specified and as directed (Make-STP Limited/Sika India Pvt Ltd/Maruti Bitumen Pvt Ltd/Choksey Chemical Pvt Ltd/IWL India Limited)