REPAIR RENEWALS OF ARCH FENDERS AND OTHER CONNECTED REPAIR WORKS AT DRY DOCK AT NAVAL DOCKYARD VISAKHAPATNAM UNDER GE (I) (DM) VISAKHAPATNAM

Amount

S&F in repairs 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 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 unservceable 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.

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 150mm X 150mm 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.

Rajan Traders (BID ID -3233360)

SPAAN Infratech (BID ID -3232832)

aswitha engineering works (BID ID -3233259)

ENTERPRISING ENTERPRISE LLP (BID ID -3232563)

VENKATA SAI SRINIVASA CONSTRUCTIONS PRIVATE LIMITED (BID ID -3233140)

BALAJI MATRIX HOLDINGS (BID ID -3233292)

SOUTHERN BUILDERS (BID ID -3232990)