Laserfiche WebLink
Bearing Pad Thickness <br /> as Shown on the Plans Sample Bearing <br /> <_50 mm Smallest complete bearing shown on the plans <br /> >50 mm * 57±3 mm thick sample not less than 200 mm x 305 mm <br /> in plan and cut by the manufacturer from the center of one <br /> of the thickest complete bearings <br /> * The sample bearing plus remnant parts of the complete bearing shall be furnished <br /> to the Engineer. <br /> F. A test specimen taken from the sample furnished to the Engineer will be tested in conformance with the <br /> requirements in California Test 663. Specimens tested shall show no indication of loss of bond between the <br /> elastomer and steel laminates. <br /> The first paragraph in Section 51-1.135,"Mortar,"of the Standard Specifications is amended to read: <br /> • Mortar shall be composed of cementitious material, sand, and water proportioned and mixed as specified in this <br /> Section 51-1.135. <br /> The third paragraph in Section 51-1.135, "Mortar,"of the Standard Specifications is amended to read: <br /> • The proportion of cementitious material to sand,measured by volume,shall be 1:2 unless otherwise specified. <br /> The fourth paragraph in Section 51-1.14, "Waterstops,"of the Standard Specifications is amended to read: <br /> • Neoprene shall be manufactured from a vulcanized elastomeric compound containing neoprene as the sole elastomer <br /> and shall conform to the following: <br /> ASTM <br /> Test Designation Requirement <br /> Tensile strength,MPa D 412 13.8 Min. <br /> Elongation at break,percent D 412 300 Min. <br /> Compression set,22 h at 70°C, D 395(Method B) 30 Max. <br /> percent <br /> Tear strength,kN/m D 624 Die C 26.3 Min. <br /> Hardness_(Type A D 2240 55±5 <br /> Ozone resistance 20%strain, 100 h D 1149(except 100± <br /> at 38°C±:1°C 20 No cracks <br /> parts per <br /> 100 000 000 <br /> Low temperature brittleness at D 746(Procedure B) Pass <br /> -40°C <br /> Flame resistance C 542 Must not propagate <br /> flame <br /> Oil Swell,ASTM Oil#3, 70 h at <br /> 100°C,volume change,percent D 471 80 Max. <br /> Water absorption,immersed 7 days <br /> at 70°C,change in mass,percent D 471 15 Max. <br /> The first sentence of the fourth paragraph in Section 51-1.17, "Finish Bridge Decks," of the Standard Specifications is <br /> amended to read: <br /> • The smoothness of completed roadway surfaces of structures, approach slabs and the adjacent 15 in of approach <br /> pavement, and the top surfaces of concrete decks which are to be covered with another material, will be tested by the <br /> Engineer with a bridge profilograph in conformance with the requirements in California Test 547 and the requirements <br /> herein. <br /> Section 51-1.17, "Finishing;Bridge Decks,"of the Standard Specifications is amended by deleting the seventh,thirteenth <br /> and fourteenth paragraphs. <br /> Contract No. 10-OM7104 <br /> 33 <br />