REPAIR / RESURFACING TO CERTAIN ROADS INSIDE AND OUTSIDE OTA CHENNAI UNDER GE STM

Amount

M&L for repairs to potholes any depth, not exceeding 1 Sqm each including sweeping ,free from dust and mud or water, scoring sunken surfaces in roads, paths, etc. by cutting around edges to at least 25mm in depth, making good by filling in with screened and graded road metal, watering and well ramming (including supply of road metal) etc.complete all as specified and as directed by Engineer- in- charge

M&L for repair to pot holes any depth not exceeding 30mm ,area not exceedig 1.00 Sqm each including sweeping free from dust, mud or water scoring sunken surfaces in roads, paths etc cutting around edges to atleast 25 mm in depth making good by applying tack coat of paving bitumen of grade VG-30 at 5 Kg per 10 Sqm, putting and filling pot holes with premixed bitumen mix as specified for SDAC ,well rammed and rolled with power roller complete all as specified and as directed by Engineer-in-Charge.

M&L for preparing unsurfaced water bound macadam surfaces by brushing with wire brushes for removing caked mud etc., sweeping with brooms and finally fanning the cleaned surface with air Compresor to remove all loose dirt etc.complete all as specified and as directed by Engineer-in-Charge.

M&L for preparing existing black top surfaces of road by brushing with wire brush for removing caked mud etc, sweeping with brooms and finally fanning the cleaned surfaces with air Compresor to remove all loose dirt etc.complete all as specified and as directed by Engineer-in-Charge.

M&L for applying paving bitumen evenly a priming coat with bitumen primer of paving bitumen of grade VG-30 at the rate10 Kg/10 Sqm on unsurfaced WBM by using bitumen sprayer machine complete all as specified and as directed

M&L for applying evenly a tack coat with bitumen primer of paving bitumen of grade VG-30 at the rate of 5 kg per 10 sqm over bituminous surface by using bitumen sprayer machine complete all as specified and as directed

M&L for Bituminous premixed semi dense asphaltic concrete (SDAC) by using Hot mix plant ,40 mm consolidated thickness with 5.5 % binder content in weight of total mix (Paving bitumen VG-30) and filler of cement content as per design mix (not less than 2%) spread by using mechanical paver, rolled and consolidated to required camber and gradient complete to a uniform surface by using Tandom Vibrator power roller 8 to 12 tonne capacity complete all as specified and directed by Engineer-in-Charge

Note : (a)Cement shall be used as filler at mininum 2% by weight of total mix in event of variation in design mix the percentage of filler content shall be on plus side adopted. (b) SDAC shall be as per MORTH specification (c) Laying shall be done by means of self-propelled mechanical paver, finishing with electronic sensor and hydraulic controls with suitable speed and capable of laying, spreading, tamping and finishing. (d) Mix shall be obtained from computerized hot mix plant and spreading shall be done by using mechanical paver only (e) The mix shall be designed by job mix formula and approved by GE. (f) Cost of testing charges, materials and transportation etc for job mix formula and Independent testing during execution of work shall be inclusive in the unit rate quoted and no extra payment shall be made on this account.

(g) Contractor quoted rate shall be for 5.5% binder content only .If the binder content shall be less than 5.5% by weight of total mix, price adjustment shall be made for less bitumen at the rate of Rs 55/kg .However no price adjustment if the binder content shall be more than 5.5% and no other claim whatsoever on this account shall be allowed and admissible

M&L for premix bituminous macadam by using Hot mix plant ,75 mm consolidated thickness or less with 4.0 % binder content in weight of total mix by using paving bitumen VG-30 spread by using mechanical paver, rolled and consolidated to required camber and gradient complete to a uniform surface by using Tandom Vibrator power roller 8 to 12 tonne capacity complete all as specified and directed by Engineer-in-Charge

Note : (a) Bituminous macadam shall be as per MORTH specification (b) Laying shall be done by means of self-propelled mechanical paver, finishing with electronic sensor and hydraulic controls with suitable speed and capable of laying, spreading, tamping and finishing. (c) Mix shall be obtained from computerized hot mix plant and spreading shall be done by using mechanical paver only (d) The mix shall be designed by job mix formula and approved by GE. (e) Cost of testing charges, materials and transportation etc for job mix formula and Independent testing during execution of work shall be inclusive in the unit rate quoted and no extra payment shall be made on this account.

(f) Contractor quoted rate shall be for 4.0% binder content only .If the binder content shall be less than 4.0% by weight of total mix, price adjustment shall be made for less bitumen at the rate of Rs 55/kg .However no price adjustment if the binder content shall be more than 4.0% and no other claim whatsoever on this account shall be allowed and admissible

M&L for providing and applying 2.5 mm thick road marking (Retro reflective) centre line,strips,stop lines,arrows etc exceeding 10 cm in width of specified shade or colour by using hard thermo plastic material applying on road surface by using fully automatic thermoplastic paint applicator machine fitted with profile shoe, Glass beads dispenser, propane tank heater and profile shoe heater, driven by experienced operator including preparing and cleaning the road surface of all dirt,seals, oil, grease and foreign material etc.complete all as per Manufacturers specifications / instruction complete all as specified and directed by Engineer-in-Charge.

S&F in repairs solar road Stud made of Aluminium composite body (of load capacity 20 T) fixed with bright LED's 3 Nos (RED) on each side, providing 90- 120 flashes per minute,of size 125mm x 125mm x 25mm, battery shall be of Li/cd , fixed on road surface by using adhesive of self expanding screws as per manufacturers instructions and as directed. Make: Tata BP/Dark eye/Green Light/3m

S&F in repairs CAT eyes of size 100mm x 100mm x 19.80mm with two sides acrylic plastic reflector conforming to ASTM standards and fixed with epoxy / nail / screws as per manufacturers instructions and as directed. Make: Tata BP/Dark eye/Green Light/3m

M&L for providing precast cement concrete 1:2:4 type B1 using 20mm graded stone aggregate as in road kerb stones, set and joint in cement mortar 1:4 complete including necessary moulds,formwork etc complete all as specified and directed

k.sundarrajan and sons (BID ID -3296761)

kcs builders (BID ID -3294996)