SPECIAL REPAIR TO CERTAIN INNER ROADS (PHASE-I) AT AFA HYDERABAD

Amount

Repairs to pot holes any depth, not exc 1 Sqm 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 wall ramming (including supply of road metal) and making good by applying tack coat with bituminous primer @ 5 kg per 10 sq m, putting in premix as specified for thin bituminous carpet (3 cm thick) well rammed and sealed with premixed sand seal coat (6.8 kg of binder with 0.06 cum of sand), again well rammed (including supply of premix binder and sand) depth of pot holes nexc 30 mm.

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 over black top surfaces of existing parade ground all as specified and as directed.

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 over Bituminous Macadam / Black topped surface of existing road all as specified.

Bituminous premix semidense asphaltic concrete (SDAC) 30mm (consolidated thickness)in single layer using paving bitumen of grade VG-30 as binder 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 with 8 to 10 tone capacity power roller complete all as specified. 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.

S&F in repairs raised reflective pavement markers (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 cubed capable for providing total 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.

S&F in repairs raised reflective pavement marker 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 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.

M&L for preparation of old existing concerete/bituminous surfaces of roads, runways, pavements and like not exceeding 10cm width and machine painting with 2mm thick thermo plastic road marking paint as lines dashes, letters arrowas etc of tint white/golden yellows etc all as directed by Engr-in-Charge.

S&F in repairs of 50mm thick precast cement concrete slab with frame Type B0 1:2:4 (using 12.5mm graded aggregate) set in CM 1:6 as in Grating, drainage slab, louvers and jallies with necessary number of weep holes/perforation over slab including all mouldings, all as specified and as directed.

K CHANDRAPAL REDDY

B RAMACHANDRAIAH AND SONS

B Sreepathy Rao & Sons