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<br />.., <br /> <br />. <br /> <br />,.., <br />. <br /> <br />4. Do not use recycled crushed glass in friction course mixtures or In <br />structural course mixtures which are to be used as the final wearing surface. <br /> <br />" <br />. <br /> <br />" <br />. <br /> <br />334-3 General Composition of Mixture. <br />334-3.1 General: Compose the asphalt mixture using a combination of aggregate <br />(coarse, fine or mixtures thereof), mineral filler, if required, and asphalt binder material. <br />Size, grade and combine the aggregate fractions to meet the grading and physical <br />properties of the mix design. Aggregates from various sources may be combined. <br />334-3.2 Mix Design: <br />334-3.2.1 General: Design the asphalt mixture in accordance with AASHTO <br />R35-04, except as noted herein. Prior to the production of any asphalt mixture, submit the <br />proposed mix design with supporting test data indicating compliance with all mix design <br />criteria to the Engineer. Include representative samples of all component materials, <br />including asphalt binder. Allow the State Materials Engineer a maximum of four weeks to <br />either conditionally verify or reject the mix as designed. Final verification of the mix design <br />will occur when the requirements of 334-5.2.1 have been met. Do not use more than three <br />mix designs per nominal maximum aggregate size per traffic level per binder grade per <br />contract year. Exceeding this limitation will result in a maximum Composite Pay Factor of <br />1.00 as defined in 334-8.2 for all designs used beyond this limit. <br />The Engineer will consider any marked variations from original test <br />data for a mix design or any evidence of inadequate field performance of a mix design as <br />sufficient evidence that the properties of the mix design have changed, and the Engineer <br />will no longer allow the use of the mix design. <br />334-3.2.2 Mixture Gradation Requirements: Combine the coarse and fine <br />aggregate in proportions that will produce an asphalt mixture meeting all of the <br />requirements defined in this specification and conform to the gradation requirements at <br />design as defined in AASHTO M323-04, Table 3. Aggregates from various sources may be <br />combined. <br />334-3.2.2.1 Mixture Gradation Classification: Plot the combined <br />mixture gradation on an FHWA 0.45 Power Gradation Chart. Include the Control Points <br />from AASHTO M323-04, Table-3, as well as the Primary Control Sieve (PCS) Control Point <br />from AASHTO M323-04, Table 4. Coarse mixes are defined as having a combined <br />aggregate gradation that passes below the primary control sieve control point, and fine <br />mixes are defined as having a gradation that passes above or through the primary control <br />sieve control point. Use either a coarse mix or fine mix for Traffic Levels A-E. <br />334-3.2.3 Aggregate Consensus Properties: Meet the following consensus <br />properties at design for the aggregate blend: <br />334-3.2.3.1 Coarse Aggregate Angularity: When tested in accordance <br />with ASTM D 5821, meet the percentage of fractured faces requirements specified in <br />AASHTO M323-04, Table 5. <br />334-3.2.3.2 Fine Aggregate Angularity: When tested in accordance <br />with AASHTO T-304, Method A, meet the uncompacted void content of fine aggregate <br />specified in AASHTO M323-04, Table 5. <br />334-3.2.3.3 Flat and Elongated Particles: When tested in accordance <br />with ASTM D 4791, (with the exception that the material passing the 3/8 inch [9.5 mm] <br />sieve and retained on the No.4 [4.75 mm] sieve shall be included), meet the requirements <br />specified in AASHTO M323-04, Table 5. Measure the aggregate using the ratio of 5:1, <br /> <br />" <br />. <br /> <br />., <br />. <br /> <br />,., <br />. <br /> <br />..., <br />. <br /> <br />" <br />I <br /> <br />., <br />. <br /> <br />r'l <br />. <br /> <br />,...., <br /> <br />I <br /> <br />r'l <br />. <br /> <br />r, <br /> <br />. <br /> <br />.., <br />. <br /> <br />.., <br />. <br /> <br />" <br /> <br />. <br /> <br />..... <br /> <br />. <br /> <br />,., <br /> <br />09/09 <br /> <br />01000-56 <br /> <br />03-4122.F <br /> <br />. <br />