REPAIR / MAINT TO CERTAIN SLAB NLB, TAXIWAY AND APRON AREAS AT AF STN BKT

Demolition of brickwork or stone work/boulder masonary built in cement mortar or cement lime mortar completed all as specified and directed.

M&L for Brick work with old size fly ash bricks straight or curved on plan exc 6m mean radius and setting in cement mortar (1:6) complete all as specified and directed.

Demolition of Cement Concrete unreinforced of any description and any position not otherwise specifically provided for pavement of NLB / Taxi track / runway / dispersal area as complete all as specified and directed.

M& L for 15mm thick rendering of external surface in CM (1:4) on fair faces of brick work or concrete surfaces including uprooting/cutting of vegetation growth (maximum height upto three stories completed all as specified and directed. (Note:- Below 10 Sqm Qty be executed throuth conventional method).

M&L for PCC (1:2:4) type B-1, using 20mm graded stone aggregate as in surface channels and drains surface finished even and smooth without using extra cement incluing necessary formwork completed all as specified and directed.

M&L for construction of granular sub base (GSB) proving 200 mm thick (compacted) in two layers of 100mm spread thickness layer by providing close graded granular sub base material of grading-II as per MORTH table 400-1, mixing in machanical mix plant OMC, speding uniform layers with motor grader on prepared surface and compacting with vibratory roller/ power roller of 8 to 12 tonne capacity to achieve the desired density completed all as specified and directed.

M&L for 10mm thick layers of ganga sand filling cover conrete subbase including watering complete all as specified and directed.

M&L for 400 micron polythene film HDPE sheet (Virgin Quality) water proof, wrinkle free without puncture having minimum weight 390 gm/Sqm over sand cushion as specified in the design with overlap between adjacent strips and a transverse joints as minimum 300mm complete all as specified and directed.

Supply only Polyester triangular fibre of 6/12 mm long @ 0.25% by weight of cement with circum circle diameter 30-35 micron designed for melting point of 240-260 degree celsius and having specific gravity of 1.34 to 1.4 Recron 3S completed all as specified and directed. (Make- M/s Reliance Ltd Mumbai or equivalent).

M&L for cement concrete design mix M-25 using 20 mm crushed stone aggregate as in pavings/hard-standing/NLB/Taxiway finished the concrete surface even and fair without using extra cements laid in alternate panels with & including necessary formwork complete all as specified and directed. (Note: Concrete should be to be procured from RMC-M25 design mix).