REPAIR RENEWAL OF FENDERS AND OTHER CONNECTED REPAIR WORKS AT JETTY NO N 4 TO N 16 AT NAVAL DOCKYARD VISAKHAPATNAM UNDER GE (I) DM VISAKHAPATNAM

S&F in repair Rubber arch fender of size 2000mm x 595 / 195mm width at bottom and top respectively x 300 mm depth and fixed vertically on the vertical face of jetty sea face wall with eight numbers M24 SS 304 bolts of length 285mm as directed by Engineer-in-charge. Rubber as per ASTM D-2000-12. The Properties of the rubber used shall be as follows :- Deflection - 51.5%, Reaction force - 25.3 Ton, Energy absorption - 2.95 ton / Mtr with a tolerance of - /+10%. Before aging : Tensile strength not less than 17 mpa , Elongation shall not be less than 350% as per ASTM D 412, Hardness Max 70 +/- 5º, Shore A as per ASTM D2240.

After aging at 96 hours at 70 º : The tensile strength not less than 80%, Elongation not less than 80% as per ASTM D 412 hardness +8º shore A as per ASTM 2240, tear strength shall not be less than 70 KN/m, Compression set at 70ºC for 22 hours 25% maximum- as per ASTM D 395, abrasion resistance Maximum 1.5CC as per BS 903 A/ASTM D 5963/ISO 4649 and Ozone resistance - no cracks as per ADSTM D 1171/ASTM 1149. All the above test reports shall be provided by the manufacturer. Necessary factory inspection during manufacturing process shall be arranged by the bidder. Note: (i) The item rate shall include the cost of SS M24 bolt, Nuts and chemical for fixing the bolt as recommended and supplied by the manufacturer of rubber fender. (ii) Rate quoted is inclusive of removal of old unserviceable fender outside MD land. (iii) All dimensions given in this schedule precede over drawings attached and drawings are provided for reference and placing of fenders only.

S&F in repair Square Rubber fender of size 2000mm x 300mm x 200mm depth (or in short lengths to suit the site requirements) and fixed as kerbs on the top of sea face jetty wall with four numbers M24 SS 304 bolts of length 285mm. The fender shall be fixed with a MS galvanized flat of size 100mm X 12mm covering the full length of the fender as directed by Engineer-in-charge. The Properties of the rubber used shall be as follows :- Before aging : Tensile strength not less than 17 MPa, Elongation shall not be less than 350% as per ASTM D412, Hardness Max 70 +/- 5º, Shore ‘A’ as per ASTM D2240.

After aging at 96 hours at 70º : The tensile strength not less than 80%, Elongation not less than 80% as per ASTM D 412 hardness + 8º shore A as per ASTM 2240, tear strength shall not be less than 70KN/m, Compression set at 70ºC for 22 hours 25% maximum- as per ASTM D 395, abrasion resistance Maximum 1.5CC as per BS 903 A/ASTM D 5963/ISO 4649 and Ozone resistance - no cracks as per ADSTM D 1171. All the above test reports shall be provided by the manufacturer. Necessary factory inspection during manufacturing process shall be arranged by the bidder. The fender is be pre coated with the homogeneous colour with yellow and black alternately complete all as specified and as directed by Engineer-in-charge. Note: (i) Fenders will be black in colour with strips of yellow colour which will be produced by moulding 5mm yellow rubber strips on all sides except bottom face side of fenders (ii) The items rate shall include the cost of SS M24 bolt, Nuts and chemical for fixing the bolt as recommended and supplied by the manufacturer of rubber fender. (iii) Rat quoted is inclusive of removal of old unserviceable fender outside MD land. (iv) All dimensions given in this schedule precede over drawings attahced and drawings are provided for reference and placing of fenders only.

S&F in repair cylinder rubber fender of size 380mm OD X190mm ID 7.93m long with MS chain with shekels of Dia 28mm with 32mm dia shackle at both ends and chain length 9800mm with chain link inside size 37 mm X 87mm fixed on the verticle face of jetty sea face wall with fixing arrangement with MS plate with suitable nuber of MS24 SS 304bolts of length 285mm as shown in drwing as directed by engineer-in charge. Rubber as per ASTM D-2240, ASTM D 412, ASTM D 395, ASTM D 1149, ASTM D 471. The properties of rubber used shall be as follows - Hardness -72+/- 5, Tensile strength 160 kg/cm2, Min elongation -300%, ageing resistence: At 70deg C 96hrs hardness +10 Elongation at break 80% of original, compressive test 30% max, water resistence +10% max by volume, Ozone Resistance @ 50PPHM . All the above test repor shall be provided by the manufacturer. Necessary factory inspection during manufacturing process shall be Note: The item rate shall include the cost of SS M24 bolt, Nuts and chemical for fixing the bolt as recommended and supplied by the manufacturer of rubber fender.and unsv fender to be remove from MD land

Taking down existing rubber arch fender in any position of any size and length not exc. 4 RM each fender and refixing the same in same or other location as directed including repairs to the distubrbed portion with suitable chemicals complete all as specified and directed.

M&L for patch repair in concrete surfaces of any depth as required with shrinkage controlled polymer modified fibre reinforced cementitious patch repair mortar chemical of any make approved by GE having a compressive strength of 45 Mpa over a coat of Nitobond SBR of make approved by GE on the base surface of jetty wall complete all as specified and directed.

Supply and fix stainless steel, 316 grade , stair case safety railing Vertical posts of size 100mmx100mmx3.0mm thick, 1100mm height, top of the post shall be cut to receive the 50mm round railing pipe and the vertival post welded to a base plate of size 100mm X 100mm X 5mm thick ,made out of SS316 heavy duty, maintenance free, corrosion resistant, aesthetic looking stainless steel extruded sections. The post shall be fixed to the staircase treads/landing concrete surface of dry dock with four in nos M12X150mm anchor fastners. For fixing M12 bolts ,a hole of 16mm dia shall be first drilled into the concrete to depth of 100mm and shall be filled with epoxy grout of Lokfix E75 of M/s Fosroc or Hil ti Re 500 after thorugh cleaning of drilled hole. M12 bolts shall be incerted into the epoxy filled hole and SS vertical post shall be grooved in to the M12 bolts and fixed with nut and washers tightly to the post.The unit rate quoted shal includfe thwe cost of post, fixing of one vertical SS post in position inclusibve of drilling holes(4 nos) in the concrete, Epoxy, M12(4Nos) bolt with nut and washers complete all as specified and directed.

Supply and fixing of horizontal railing with SS 316 garde heavy duty, maintenance free, corrosion resistant, aesthetic looking stainless steel extruded sections of 50mm dia roound pipe 2mm wall thickness, for safety railings and fixed on the top of 50mm suqare vertical post by welding in-situ , cleaning, buffing, ploshing to match the surafce smooth, shining and uniform complete all as specified and directed.

Material & labour for periodical maintenance of existing (old) stainless steel of post & railing of any size/any description of hand rails/ladders etc with emery paper, tack powder, soft clothsetc, for cleaning the stain marks/scaling on the exposed surfaces of SS pipes and buffing with hand machine etc, complete all as specified and directed.