5-132 approval of the Fabrication Engi neer. Anchor studs shall confo rm to the requirements of Section 711.06, Stud Shear Connectors, Anchor and Fasteners. B olts shall conform to the requirements of AASHTO M169 (ASTM A325).
521.03 General All work shall conform to the applicable provis ions of Section 504,
Structural Steel. Completed e xpansion devices and any required support components for troughs or curtains, expansion dams, barrier sliding plates, do wnspouts and chutes shall be hot dipped galvanized to the requi rements of AASHTO M111 (ASTM A123). Anchorage parts encased in concrete may be supplied in the ungalvanized c ondition. Each expansion device shall be shipped fully assembled, shall b e installed as a unit, and shall be equipped with shipping and temperature adjustment devi ces approved by the Resident. When a project is built in stages, and if desired by the Contractor, the expansion device may be shipped in two or more sections, as approved by t he Fabrication Engineer, with appropriate provisions for field splicing.
521.04 Materials- Fabric Trough or Curtain The fabric for the trough or curtain shall be
⅛ to 3/16 inch in thickness and shall consist of a single layer of 14.6 ounce woven nylon fabric, or the equivalent in multiple layers of woven nylon fab ric, laminated between two or more layers of neoprene rubber. The neoprene shall conform to the following requirements: Physical Properties: G r a d e ( D u r o ) 60 Original Physical Properties 60 +/- 5 Hardness ASTM D2240 Tensile Strength, Minimum 850 psi ASTM D412 Elongation at Break, Minimum Accelerated 300% Test to Determine Long Term Aging Characteristics Oven Aged - 70 Hours/212ºF, ASTM D573 Hardness, Points Change, Maximum +15 Tensile Strength, Change, Maximum - 15% Elongation at Break, Change, Maximum -40% Ozone - 1 PPM in Air by Volume 20% Strain No cracks 100 +/- 2ºF - ASTM D1149* 100 hours (*Samples shall be solvent wiped before test to remove any traces of surface impurities.) Compression Set - 22 Hours/ /212ºF ASTM D395 - Method B, 0/0 Maximum 35% ASTM D746 - Procedure B -40ºF Brittleness at No Failure Fluid Resistance - ASTM D471 70 Hours/212ºF in ASTM Oil No. 3 5-133 Change in volume, Maximum +120% Change in tensile strength, Maximum -70% Change in ultimate elongation, Maximum - 55% The finished fabric shall have a minimum breaking strength of 7 00 pounds/inch when tested by ASTM Test Method D5034. The minimum breaking strengt h shall be determined on a sample taken transverse to the centerline of the trough, o r a random sample taken from the curtain. When delivered to the job site, each separate length, roll or c ontainer shall be clearly tagged or marked with the manufacturer's name, trade mark and l ot number. A lot is defined as that amount of fabric manufactured at one time from one batc h of elastomer. A batch is defined as that amount of elastomer prepared and compounded at one time. Not less than thirty days prior to the installation of the trou gh, a sample length of each lot of fabric, not less than 3 feet long, shall be submitted to the Resident for testing. All samples shall be taken from the lot(s) to be furnished, shall b e tagged for identification purposes and shall be furnished to the Resident, at no addition al cost to the Department. Approval of the material must be obtained before the material i s incorporated in the work.
521.05 Fabrication The Contractor shall submit Working Drawing s in accordance with
Section 105.7, Working Drawings. These drawings shall include, but not be limited to, the following information: The complete details of the method, mate rials and equipment proposed to be used in the installation operation. Such detail s shall give complete specifications and details of the elastomeric trough or curtain , and other data pertaining to the installation operation. Installation holes shall be cut round and cleanly with a sharp tool. Holes having jagged or roughly cut edges will be cau se for rejection of the trough or curtain unit.
521.06 Construction of Fabric Trough Where a splice is require d for staged
construction, the upper section of the trough shall be fitted i nside the lower section of the trough in such a manner that any water spillage through the spl ice shall be eliminated.
521.07 Method of Measurement Expansion Device - Finger Joint w ill be measured by
each unit, complete in place and accepted. Each unit shall cons ist of one pair of matching devices including anchorage system, curb and sidewalk expansion dams, barrier sliding plates as required, and, if shown on the Plans, trough or curta in components, downspouts and chutes. Fabric Trough or Fabric Curtain for Finger Joint will be measur ed for payment by each unit complete in place and accepted.
521.08 Basis of Payment The accepted quantity of Expansion Dev ice - Finger Joint will
be paid for at the Contract unit price each, which payment shal l be full compensation for all materials including anchorage system, curb and sidewalk expansi on dams, barrier sliding