Pay item 634(1) Traffic markings, reflectorized, broken, white, or yellow_--- Pay unit Linear feet 634(2) Traffic markings, reflectorized, solid, white, or yellow Linear feet 634(3) Traffic markings, reflectorized, symbols and letters, white Square feet Section 700 MATERIALS DETAILS Section 701.-HYDRAULIC CEMENT 701.01 Portland Cement and Masonry Cement. Cement shall conform to the requirements of the following cited specifications for the type specified or permitted: Type Portland cement- Specification AASHTO M85 (ASTM C150) Blended Hydraulic cements Masonry cement-- excluding types S and SA AASHTO M240 (ASTM C595) AASHTO M150 (ASTM C91) When types IV, V, P and PA cements are used, proper recongition shall be given to the effects of slower strength gain on concrete proportioning and construction practices. Unless otherwise permitted by the Engineer, the product of only one mill of any one brand and type of portland cement shall be used on the project. The Contractor shall provide suitable means of storing and protecting the cement against dampness. Cement which, for any reason, has become partially set or which contains lumps of caked cement will be rejected. Cement salvaged from discarded or used bags shall not be used. Section 702.-BITUMINOUS MATERIALS 702.01 Asphalt Cements. Asphalt Cement shall conform to the requirement of AASHTO M-226. 702.02 Liquid Asphalts. Liquid asphalts shall conform to the requirements of the following specifications: Rapid Curing Liquid Asphalts AASHTO M-81. AASHTO M-82. AASHTO M-141. 702.03 Emulsified Asphalts. Emulsified asphalts shall conform to the requirements of the following specifications. Emulsified Asphalt (Anionic) – AASHTO M 140 (ASTM D 977) Emulsified Asphalt (Cationic) – AASHTO M 208 (ASTM D 2397) 702.04 Acceptance Procedures for Bituminous Materials (a) General-Bituminous materials will be accepted at the source of shipment subject to the following conditions: (1) The supplier shall conduct laboratory tests of all material intended for shipment to the Government and certify that the material meets the contract specifications. (2) Before loading, the producer shall examine the shipping container, remove all remnants of previous cargos which might contaminate the material to be loaded and certify that it was clean and free of contamining material when loaded. (3) The contractor shall furnish with each shipment two copies of the delivery ticket. The delivery ticket shall contain the following information: (4) The contractor, or the supplier as his agent, shall deliver to the project engineer, or his representative a certification signed by an authorized representative of the supplier to cover the quality and quantity of material and the condition of container for each shipment. The certification shall be essentially in the following form and may be stamped, written or printed on the delivery ticket. "This is to certify that this shipment of. tons/gallons of asphalt meets all contract specification requirements of the FHWA, and the shipping container was clean and free from contaminating material when loaded: Producer Failure to sign the certification will be cause to withhold use of the material until it can be sampled, tested and approved. (b) Quality control reviews will be conducted by the Government, or an authorized representative, at the point of production, at frequencies determined by the Engineer, to determine the reliability of the producer's certifications. If this review indicates that the certifications are not reliable the acceptance of bituminous materials by certification will be discontinued and the contents of each shipping container will be sampled at point of delivery, tested and accepted prior to incorporation in the work. This procedure will be followed until an engineering determination is made that the supplier's quality control and testing procedures are such that material meeting contract specifications is being consistently produced. (c) Alternate acceptance procedures for asphalt materials. Where required by the special provisions the following alternate acceptance plan for asphalt material will apply in lieu of a. and b. above. The contractor shall provide delivery tickets and certifications as set out in (a), above. Acceptance samples of bituminous materials shall be obtained in accordance with AÄSHTO T 40, Sampling Bituminous Materials, at the applicable point of acceptance as defined herein: 1. Bituminous materials used in direct application on the road. Acceptance samples shall be obtained under the supervision of the Engineer from the conveyances containing the bituminous material at the point of delivery. Single samples shall be taken of each separate tank load of bituminous material delivered, at the time of discharge, into distributors or other conveyances on the project. 2. Bituminous materials initially discharged into storage tanks on the project. Acceptance samples shall be obtained from the line between the storage tank and the distributor or the bituminous mixing plant after each delivery. A single acceptance sample shall be taken after a sufficient period of circulation of such bituminous material has taken place to insure samples representative of the total material then in the storage tank. As soon after sampling as practicable, the acceptance sample shall be delivered by the engineer to the nearest authorized laboratory for tests to determine compliance. (1) Final acceptance of bituminous materials shall be determined on the basis of the acceptance sample test results compliance with the applicable specification requirements contained in Tables 1, 2, and 3, which shall be used for the purpose of adjusting the appropriate unit prices of asphalt cements when deviations from specifications occur. Bituminous material which deviates from the specification requirements to the extent that an unsatisfactory product results, shall be removed and replaced or otherwise corrected by and at the expense of the contractor. If the acceptance test results are such that a reduced pay factor is determined for more than one characteristic, only the price adjustment for the greatest reduction will apply. (2) Final acceptance of cut-back asphalts, emulsions and other asphalts shall be in accordance with Section 105.03, Conformity with Plans and Specifications. |