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<br />..., <br /> <br />. <br /> <br />, <br />. 521 CONCRETE BARRIERS, TRAFFIC RAILING BARRIERS AND PARAPETS. <br />(REV 1-3-06) (FA 1-10-06) (7-06) <br /> <br />II <br />. <br /> <br />SECTION 521 (Pages 589-591) is deleted and the following substituted: <br /> <br />II <br /> <br />SECTION <br />CONCRETE <br />AND PARAPETS <br /> <br />BARRIERS, <br /> <br />TRAFFIC <br /> <br />RAILING <br /> <br />521 <br />BARRIERS <br /> <br />. <br /> <br />.., <br /> <br />. <br /> <br />521-1 Description. <br />Construct Precast or Cast In Place concrete barriers, traffic railing barriers and <br />parapets, herein referred to as "Barrier Wall", in accordance with the Design Standards <br />and/or details shown in the plans. Use stationary removable forms or sliding forms to <br />construct the barrier wall. Do not use permanent precast concrete barrier wall on bridge or <br />box culvert structures. <br />Provide written certification from the manufacturer of the Precast Barrier Wall that <br />the Barrier Wall meets the requirements of this Section. Barrier Wall is produced using <br />certification acceptance; therefore, assume responsibility for performance of all quality <br />control testing and inspections required by Sections 346 and 400 for Barrier Wall <br />construction. Perform all Quality Control Testing and inspections using CTQP qualified <br />testing personnel. Perform compressive strength testing in a laboratory inspected by CCRL <br />or CMEC. <br />Ensure that each shipment of products to the job site includes a list of products <br />shipped and the required written certification statement for each product. Provide this list <br />and certification(s) to the Engineer. <br /> <br />...... <br />. <br /> <br />r'l <br />. <br /> <br />,., <br />. <br /> <br />..., <br />. <br /> <br />.., <br />. <br /> <br />...., <br /> <br />521-2 Materials. <br />Meet the following requirements: <br />Portland Cement Concrete.................................. Section 346 <br />Reinforcing Steel.............................................. Section 415 <br />Joint Materials .................................................Section 932 <br />Reflector Elements ............................ ....... ......... Section 993 <br /> <br />...., <br />. <br /> <br />. <br /> <br />..., <br /> <br />521-3 Use of Precast Temporary Barrier Wall. <br />521-3.1 General: Meet the requirements of 102-9.5.2. <br />521-3.2 Precast Temporary Barrier Wall Meeting the Requirements of the Design <br />Standards, Index No. 415: Use Precast Temporary Barrier Wall when certification is <br />provided to the Engineer that the Precast Temporary Barrier Wall was constructed in <br />accordance with and meets the requirements of the Design Standards, Index No. 415, and <br />meets the approval of the Engineer. <br />521-3.3 Procurement of Proprietary Precast Temporary Barrier Wall: Obtain and use <br />Precast Temporary Barrier Wall listed on the Departments Qualified Products List (QPL) <br />from a manufacturing plant that is currently on the Department's list of the qualified <br />Precast Concrete Barrier Wall plants. <br />Ensure each Precast Temporary Barrier Wall Section has permanent clear <br />marking, showing the manufacture date, serial number, and manufacturer's name or <br />symbol and the Department approved drawing number that it meets. The markings may be <br />located on a plate, plaque, or cast in the panel. <br /> <br />. <br /> <br />II <br /> <br />. <br /> <br />,., <br /> <br />. <br /> <br />..., <br /> <br />. <br /> <br />,.., <br /> <br />. <br /> <br />,.., <br /> <br />. <br /> <br />..., <br /> <br />09/09 <br /> <br />01 000-11 5 <br /> <br />03-4122.F <br /> <br />- <br />