Specifications. The joint shall be designed to 180 accommodate the movement shown on the plans.
The joint assembly shall be preset by the manufacturer in accordance with the approved working drawings, joint setting data, and specifications. The assembly shall be properly secured for shipping and contain provision for final field adjustment at the time of installation. The manufacturer shall furnish a copy of the installation instructions prior to the placement of these joints.
Structural steel shall be in accordance with ASTM A36, ASTM A242, ASTM A588, ASTM A1011, or M 1010 or M 1020 in accordance with ASTM A575. 190 Sealant and grout shall be in accordance with the join t manufacturer’s recommendation.
The elastomeric compound used to manuf acture the seal shall be neoprene in accordance with ASTM D5973. A Type B certification in accordance with 916 shall be provided for the elastomeric seal. The limits of the following shall be shown on the certification. 200 Property Requirements Tensile Strength ASTM D412 Elongation at break ASTM D412 Hardness, Type A durometer, points ASTM D2240 (modified) Oven Aging Tensile Strength, loss Elongation, loss Hardness, Type A durometer, points change ASTM D573 Oil Swell, IRM 903, weight change ASTM D471 Ozone Resistance ASTM D1149 Low Temperature Stiffening ASTM D2240 Compression set ASTM D395, Method B
A Type C certification in accordance with 916 shall be provided for the structural steel and polyurethane sealant. Bearings above and below the support bar shall be a nylon or urethane compound with polytetrafluorethylene riding surfaces. All components of the system shall be accessible to periodic inspection and component replacement if necessary. The seals shall be in accordance w ith the requirements as follows: 210
limits of joint movement, 906.07
1025 2. be supplied and installed in one piece,
clamped in position to produce a watertight seal,
during normal joint operation,
normal limits of joint movement,
230
mechanical equilibrium control spacers or a strip seal configuration for joints using a mechanical linkage to maintain equidistant separator beam spacing. The joint shall have a maximum opening of 3 in. per seal. The separator beams shall be in accordance with the requirements as follows:
240
traffic loads by use of a suitable shape and connection to the support bar,
bars,
equilibrium type control spacers to counter the compressive forces of the seals or through a positive horizontal mechanical linkage or proportioning bar. The support bars shall be in accordance with the requirements as follows:
resistance to joint movements, 906.07
1026 2. be supported above, below, and laterally as required to prevent 260 lifting, to transmit bearing loads, and to maintain positioning of the bar. All support bar boxes and joint housings sh all have top, bottom, and sides made of steel plate with 1/2 in. minimum thickness. Anchorages shall consist of looped No. 5 reinforcing bars welded to 1/2 in. steel plates spaced at 9 in. centers. Non-welded steel to steel contact will not be allowed.
This joint shall be furnished from the QPL of Type PCF Bridge Joints. Joints will 270 be considered for inclusion on the QPL by completing the requirements of ITM 806, Procedure C. These products shall consist of a highway grade silicone faced self-expanding foam expansion joint seal, a field-applied epoxy adhesive, and a field-applied silicone sealant. The foam seal shall be able to accommodate the thermal movement range shown on the plans and shall have a movement capability of no less than +50% to - 50% of the nominal material size. The si licone facing material shall accommodate a minimum elongation of 600%. 280 The foam seal shall be accordance with the following requirements:
Property Test Method Requirements Temperature Service Range ASTM C711 -40ºF to 185ºF UV Resistance ASTM G155 or ASTM C793 No changes or cracking at 2,000 h
906.08High Density Bearing Strip The strip shall be nontoxic multipolymer plastic in accor dance with the following
requirements: Property Test Method Requirements Compressive Strength ASTM D695 8,000 to 9,000 psi Coefficient of Linear Expansion ASTM D696 7.62 x 10-4 mm/mm/ºC to 1.27 x 10-3 mm/mm /ºC
A Type B certification in accordance w ith 916 shall be provided for the high- density bearing strip. The limits of the compressive strength test and measurement of 290 the coefficient of linear expansion shall be shown on the certification for the high- density bearing strip. 906.08 1027