ASTM D3515 PDF

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Standard Specification for Hot-Mixed, Hot-Laid Bituminous Paving Mixtures1 This standard is issued under the fixed designation D ; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval.

A superscript epsilon e indicates an editorial change since the last revision or reapproval. D Specification for Fine Aggregate for Bituminous 1. Combining values from the two systems may result D Test Method for Recovery of Asphalt from Solution in nonconformance with the standard. It is the Capillary Viscometer3 responsibility of the user of this standard to establish appro- D Test Methods for Quantitative Extraction of Bitu- priate safety and health practices and determine the applica- men from Bituminous Paving Mixtures3 bility of regulatory limitations prior to use.

D 75 Practice for Sampling Aggregates3 3. Reclaimed asphalt pavement RAP that has been removed D Specification for Coarse Aggregate for Bituminous from its original location and reduced in size as may be required. Paving Mixtures3 3. Plant-Mix Bituminous Surfaces and Bases. Current edition approved June 10, Published August Originally published as D — 76a.

Last previous edition D — Ordering Information shown that satisfactory performance will result. Composition of Bituminous Paving Mixtures dense mixture and mix designation; open mixture and mix 8. Aggregates therefore, would be the same on either a weight or bulk volume basis. If the bulk specific gravities of coarse and fine aggre- 5. Other aggregate gradations in the bitumen content, as indicated by extraction tests of the may be used, provided that the combined coarse and fine finished mixture, greater than the percentage shown in Table 3, aggregates, and filler, when used, produce a mixture that shall be investigated, and the conditions causing such variation conforms to the requirements for grading of total aggregate shall be corrected Note 7.

NOTE 6—It is recognized that the extraction test is a generally accepted 5. However, due to the relatively wide difference in the with the bitumen aggregate for recycling as necessary to bitumen content and aggregate gradation sometimes found in individual produce the result required by 5. Mineral Filler samples be used as an indication of the mix composition, and not as the 6.

Unless the mixing plant has automatic batching and recording equipment, it may be 7. Bitumen necessary to determine both aggregate gradation and bitumen content from extraction test samples. This will not be cause for NOTE 3—The viscosity grade or the penetration grade to be used investigation. The required viscosity grade or penetration grade should 9. Mixing Plant be specified.

Mixing Plant Operation depending upon the type of construction, climatic conditions, and the The required grade should be specified. Stockpiles shall be built and 7. Gradings approaching the maximum amount permitted to pass the No. The blend of aggregates and filler, when tested in accordance with Test Method D , shall have a plasticity index of not greater than 4, except that this plasticity requirement shall not apply when the filler material is hydrated lime or hydraulic cement.

The wide difference in the specific gravity of various aggregates, as well as a considerable difference in absorption, results in a comparatively wide range in the limiting amount of bitumen specified.

The amount of bitumen required for a given mixture should be determined by appropriate laboratory testing or on the basis of past experience with similar mixtures, or by a combination of both.

Adequate provisions shall throughout the mixture. At no time during the processing, from be made to keep bitumen aggregate for recycling from being storage to mixing, will temperature of the bitumen be allowed mixed with aggregates or otherwise contaminated.

The sequence mixture, the amount passing the No. In open-graded asphalt aggregate for recycling shall be drawn or weighed may friction course mixtures, the amount passing the No. The blend of aggregates and filler, when tested in accordance with Test Method D , shall have a plasticity index of not greater than 4, except that this a continuous mix plant. Mixing time shall is applicable to a variety of aggregates of conventional specific gravities, approxi- be specified within the following limits, except that the mately 2.

The wide difference in the specific gravity of some aggregates, minimum may be determined as provided in The amount of bitumen required for a given mixture maximum dry mixing time may be determined as provided by should be determined by appropriate laboratory testing or on the basis of past The minimum values for percentage of coated par- ticles used to establish the minimum mixing time shall be set by the engineer.

Asphalt cement Each size aggregate shall be separately fed by feeders to the The aggregate shall be dried and deliv- mixture in strict accordance with this specification. In order ered to the mixer at a temperature such that the mixture will be that accurate and sufficiently large samples of aggregate may produced at a temperature within the range suited to the be obtained from the hot aggregate bins, easy and safe access bitumen used, as follows: shall be provided to the location on the plant where such Temperature Range samples may be taken.

The temperature between those limits shall be regulated Grade Penetration Equal to or More Than according to the grade and viscosity characteristics of the — This value is AC Methods of Sampling and Testing Where delivery to cold storage will take more than 4 h, one of the following procedures shall be used: Maintain dry ice in coolers during delivery to the D Determine the tar content in accordance with explana- b Place the sample in a gallon can containing dry ice.

Cap tory note appended to Test Methods D When Keep the can tight C The C B C Dense Mixtures: 2 in. NOTE 8—An arbitrary separation point has been made above, based on It has been observed that the coarser mixes undergo The American Society for Testing and Materials takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard.

Users of this standard are expressly advised that determination of the validity of any such patent rights, and the risk of infringement of such rights, are entirely their own responsibility. This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years and if not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM Headquarters.

Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you should make your views known to the ASTM Committee on Standards, at the address shown below. Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phone , fax , or service astm.

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Jump to Page. Search inside document. Designation: D — 01 Standard Specification for Hot-Mixed, Hot-Laid Bituminous Paving Mixtures1 This standard is issued under the fixed designation D ; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision.

Penjejak Awan. Shammir Tabayag Mangida. Wilfred Abraham. Beatus Binz Kili. Jon Lewis-Cooper. Ruddy Espejo. Franklin Barrera. Luis Miguel Pacheco. Mohammad Ali Salem Mauna. Barkah Widi.

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