AASHTO M30-15 pdf free download
AASHTO M30-15 pdf free download.Metallic-Coated Steel Wire Rope and Fittings for Highway Guardrail.
6.3. Ductility ofSteei—The individual zinc-coated wires shall be capable of being wrapped two turns
in a close helix at a rate not exceeding 15 turns per minute around a cylindrical steel mandrel equal
to three times the nominal diameter of the wire under test without cracking or breaking of the wire.
6.4. Weight of Zinc C’oating or Zinc—5 Percent 44luminun,-Mischm eta! Alloy—The class of zinc coating shall be specified by the purchaser. The weight of the metallic coating on the individual wires for the specified class and appropriate wire size shall not be less than that specified in Table 2 or Table 3 when tested in accordance with the stripping test of T 65M/T 65.
8. JOINTS AND SPLICES
8.1. Individual Wires—The distance between joints in any two individual wires in a strand shall be not less than 457 mm (18 in.). Joints in individual wires shall be either butt-welded or brazed-lap type. Joints made by butt-welding shall have all flash removed. When the brazed-lap type of joint is used, the length of the lap shall be not less than three times the diameter of the wire, and the overlapping faces shall be smooth, clean, properly fluxed, and completely covered by the brazing metal. All joints shall be recoated after welding so that the joints shall have protection from corrosion equivalent to the metallic-coated wire itself
8.2. Strand or Rope—Strand or rope splices may be made only when authorized in writing by the purchaser.
9. SAMPLING AND TESTING
9.1. One wire rope test specimen shall be taken from each lot. A lot shall consist of not more than
18 Mg (20 tons) of wire rope of one size and type delivered at one time.
9.2. The test specimen shall be of a length to perform conveniently all tests prescribed in this specification.
9.3. A minimum of four wire test specimens shall be cut from each size of main wires in the rope, selected at random for testing for compliance with Sections 6.2, 6.3, 6.4, and 6.5.
9.4. If an individual wire or the rope fails to meet any requirements of this specification, that reel shall be rejected and two additional tests shall be made on samples of the wire rope from two different reels in the lot. If failure occurs in either of these tests, the lot of wire rope shall be rejected. The lot may be resubmitted for inspection after testing every reel for the characteristics in which the specimen failed and sorting out the defective reels.
10. INSPECTION
10.1. All tests and inspection shall be made at the place of manufacture unless otherwise specified, and shall be conducted so as not to interfere unnecessarily with the operation of the works. The manufacturer shall afford the inspector representing the purchaser all reasonable facilities to satisfy him that the material being furnished is in accordance with this specification. When specified, inspection may be waived and certified copies of test reports furnished. The purchaser reserves the right to test individual wires for compliance to Sections 6.2, 6.3, 6.4, and 6.5 and the metallic-coated wire rope after fabrication.
11. PACKAGING
11.1. Current standard practice is to ship the wire rope on wooden reels. Each reel shall have the length, nominal diameter, type of strand construction, mass of rope, and name or trademark of the manufacturer plainly and indelibly marked on a strong tag, firmly attached, or this information shall be painted on the reel. The wooden reel shall be mountable so that it will revolve, and the rope will run off by pulling straight ahead.AASHTO M30-15 pdf download.
