SPECIAL REPAIRS OF W1 AND W2 TAXI LINKS AT INS GARUDA NAVAL BASE KOCHI

Scarifying or picking gravelled, macadam or bituminous macadam surfaces in area exc 400 sqm Exc 50 mm and n exc 100 mm deep and excavated material to be filled in adjacent low laying area etc all as specified and directed.

M&L for applying evenly a tack coat with bituminous primer at 5.0 kg/ 10 Sqm using paving bitumen VG-10 grade over scarified existing bituminous surfaces complete all as specified and directed.

M&L for premix bituminous macadam laid/rolled and compacted to required gradient and camber using paving bitumen 4% min as correction layer with 200mm consolidated thickness (100mm thick in two layer) complete all as specified.

M&L for providing and consolidating Dense Bituminous Macadam (DBM) Grade-II laid in single layer as required for grade correction layer of 75mm consolidated thickness with min 4.5% bitumen or actual as per mix design (whichever is higher) binder content by weight of total mix, (minimum Marshal stability 900 kg) with cement filler as per design mix (cost of filler materials included in the rate), with paving bitumen of grade VG-30 penetration using hot mix plant (batch type) and laid by using sensor paver, rolled and compacted to requried camber and gradient all as specified in Table 500-10 of MoRTH Specification for Road and bridge works 2013 complete all as specified and directed.

M&L for applying evenly a tack coat with bituminous primer at 2.0 kg/ 10 Sqm using paving bitumen VG-10 grade over bituminous macadam/DBM to DAC 1st layer/ surfaces complete all as specified and directed.

Supplying laying and fixing by mechanical means 1.5mtr wide self adhesive glass fibre reinforced glass grid size 12.5 mm x 12.5 mm mesh with mean tensile strength 100 KN/ M in both longitudinal transverse directions conforming to ASTM-6637, ASTM D-276 and ASTM D - 5261-92 specifications rolled by pneumatic tyred roller to form a good self adhesive wrinkle free surface all as directed. Note : (i) The longitudinal overlap 50mm and transverse over lap shall be 100mm. (ii) The net quantity of glass grid shall only measured for payment purpose and nothing extra shall be paid extra for overlaps.

M&L for providing stress absorbing membrane interlayer (SAMI) over glass grid with and including tack coat of polymer modified bitumen [email protected]/sqm and dry stone chipping of size 10-12mm sprayed @10 to 12 kg/sqm complete all as directed.

M&L for Dense Asphaltic Concrete (DAC) of grading I, 50 mm thick (consolidated thickness) using PMB-40 (PMB to be used shall be Elastometric Thermoplastic SBS based (IS: 15462-2004) conforming to IRC: SP -53-2002) with 5.4% minimum binder content or actual qty of PMB as per design mix (whichever is higher) cement filler in wearing course, with minimum marshal stability as 1200 kg using hot mix plant and laid by using sensor paver, rolled and compacted to requried camber and gradient complete all as specified.

M&L for Dense Asphaltic Concrete (DAC Gde II as per MORTH with minimum Marshal stability as 1400 Kg), 50 mm thick (consolidated thickness) in single layer using PMB -40 (PMB to be used shall be with minimum 80% elastic recovery half thread in ductilometer and softening point 60 Degree Celcious Elastometric Thermoplastic SBS based (IS: 15462-2004) conforming to IRC:SP-53-2002) with 5.6% minimum binder content actual qty of bitumen as per mix design (whichever is higher) and cement filler as per design mix (cost of filler included in the rates) actual as per mix design as wearing course, using hot mix plant and laid by using sensor paver, rolled and compacted to requried camber and gradient complete all as specified.

M & L for Retro reflective WBR paint and glass beads of Type III on dispersals and links all as specified and as directed.