REPAIRS/RESURFACING OF ROADS INCLUDING DRESSING OF ROAD SIDE BERMS,KERB STONES, ROAD FURNITURE AND OTHER MISCELLANEOUS WORKS IN ZONE I AND II OF TECHNICAL AREA AT AFA HYDERABAD

Amount

Repairs to pot holes of any depth, not exc 1 Sq m each including sweeping free from dust and mud, or water, scoring sunken surfaces in roads, paths,etc. cutting around edges to at least 25mm in depth, making good by filling in screened & graded road metal, watering and well ramming (including supply of road metal) depth of potholes n exc 30 mm complete all as specified and directed.

Surface dressing n.exc 15cm deep in any type of soil complete all as specified and as directed.

Preparing black top surfaces by brushing with wire brushes for removing caked mud etc, sweeping with brooms and finally fanning the cleaned surfaces with gunny bags to remove all loose dirt etc on black top surfaces complete all as specified and as directed.

M & L Applying evenly a tack coat with hot pressure spray using RS (Rapid Setting) Bitumen Cationic Emulsion conforming to IS-8887/ASTMD-2397@ 2.5Kg/10Sqm on Bituminous Macadam / Black top surfaces complete all as specified and as directed.

M & L Applying evenly a tack coat with hot pressure spray using SS (Slow Setting) Bitumen Cationic Emulsion conforming to IS-8887/ASTMD-2397@ 7.5kg/10Sqm on WMM surfaces/pot holes complete all as specified and as directed.

M & L Bituminous premix semi dense asphaltic concrete (SDAC) 30mm (consolidated thickness) in single layer using paving bitumen of grade VG-30 with 5.5% minimum binder content mixed by weight of total mix as wearing course, using hot mix plant and laid by using mechanical sensor paver, rolled and compacted to required camber and gradient complete all as specified and as directed. Note : (i) No extra payment shall be paid to the contractor for extra quantity of bitumen than mentioned in Sch "A" on plus side. However price adjustment shall be made for less quantity of binder content used in the work. (ii) Design mix for bituminous premix semi dense asphaltic concrete shall be got designed from approved lab/institute and approval of CWE shall be obtained. Hot mix plant shall also be inspected & approved by the rep detailed by Accepting officer.

M & L waste plastic modified dense graded bituminous pavement layer (conforming to IRC SP 98) 30mm thick (consolidated thickness) in single layer using paving bitumen of grade VG-30 with 5.5% minimum binder content mixed by weight of total mix as wearing course, using hot mix plant and laid by using mechanical sensor paver, rolled and compacted to required camber and gradient complete all as specified and as directed. Note : (i) No extra payment shall be paid to the contractor for extra quantity of bitumen than mentioned in Sch "A" on plus side. However price adjustment shall be made for less quantity of binder content used in the work. (ii) Design mix for waste plastic modified dense asphaltic concrete shall be got designed from approved lab/institute and approval of CWE shall be obtained. Hot mix plant shall also be inspected & approved by the rep detailed by Accepting officer.

S&F in repairs raised reflective pavement marker (Cat eyes) made of plastic body moulded from HIPS (Hi- impact polystrene) or ABS plastic conforming to ASTM D type 4280 type H and complying to specifications of category A and reflective panels consisting of number of lenses containing single or dual prismatic cubes capable for providing total interal reflection light entering the lens face, with height not exceeding 20mm and length and width 100mm (not exceeding surface shall be 130mm) and the area of each retro-reflecting surface shall be 13 Sqmcm on each face and shall preferably be 35 +_ 5 degree slope to base to face, fixed as per manufactures instructions complete all as specified MAKE: 3M / TATA BP SOLAR / SA TRAFFIC SAFETY, Kolkata / BONS LIGHT PVT LTD, Ahmedabad / ASIAN CONTROLS, Mumbai.

S & F in repairs raised reflective pavement markers Solar blinkers studs (Cat eyes) of 6 LEDs made of plastic body moulded from HIPS (Hi-impact polystrene) or ABS plastic conforming to ASTM D type 4280 type H and complying to specifications of category A and reflective panels consisting of number of lenses containing single or dual internal reflection of light entering the lens face, with height not exceeding 20mm and length and width 100mm (not exceeding surface shall be 13 Sq.cm on each face and shall preferably be 35 + 5 degree slope to base to face, fixed as per manufacturers instructions complete all as specified and as directed. MAKE: 3M / TATA BP SOLAR / SA TRAFFIC SAFETY, Kolkata / BONS LIGHT PVT LTD, Ahmedabad / ASIAN CONTROLS, Mumbai.

M & L preparation of new existing concerete/bituminous surfaces of roads, runways, pavements and like not exceeding 10cm width and machine painting with 1.5mm thick thermo plastic road marking paint as lines dashes, letters arrowas etc of tint white/golden yellow etc complete all as directed by Engr-in-Charge.

M & L Premix Dense Bituminous Macadam (DBM) 40 mm (consolidated) thickness in single layer (compacted thickness) using Paving bitumen of grade VG-30 with 4 % binder by weight of total mix using hot mix plant and laid by using mechanical sensor paver rolled and compacted to required camber and gradient using vibratory / pneumatic and tandem vibratory roller complete all as specified and as directed. Note: (i) No extra payment shall be paid to the contractor for extra quantity of bitumen than mentioned in Sch "A" on plus side. However price adjustment shall be made for less quantity of binder content used in the work. (ii) Design mix for bituminous premix dense asphaltic concrete shall be got designed from approved lab/institute and approval of CWE shall be obtained. Hot mix plant shall also be inspected & approved by the rep detailed by Accepting officer.

Demolition of cement concrete in ground floors and pavings n.exc 15 cm thickness (below or above ground level) complete all as specified and as directed.

M&L Providing precast cement concrete 1:2:4 mix type B-1 (using 20 mm graded stone aggregate) as in kerbs, water troughs and the like including weathering, slightly rounded for chamfered angles and throating,complete all as specified and as directed.

M & L applying two coats of synthetic enamel paint over a coat of primer including preparation of new concrete surfaces complete all as specified and as directed.

B RAMACHANDRAIAH AND SONS

B Sreepathy Rao & Sons