4.1 Use of recycled aggregate base has become commonplace in transportation applications.4.2 RAB may be used alone or in mixtures with other aggregate materials (virgin and/or recycled) in the production of unbound base course materials.4.3 Quality of RAB is critical for successful reuse in pavement base applications. This practice is intended to provide a common baseline framework for assuring material, operator, and facility quality for production of RAB.1.1 This practice covers selected aspects for reclamation of recycled aggregate base (RAB) material derived from asphalt pavement or concrete. RAB may be called recycled asphalt pavement (RAP) or recycled concrete aggregate (RCA).1.2 This practice is provided related to material quality, material quality control testing, and also operator and facility qualifications.1.3 Units—The values stated in SI units are to be regarded as the standard. No other units of measurement are included in this standard.NOTE 1: Sieve size is identified by its standard designation in Specification E11. The alternative designation given in parentheses is for information only and does not represent a different standard sieve size.1.4 This practice offers a set of instructions for performing one or more specific operations. This document cannot replace education or experience and should be used in conjunction with professional judgment. Not all aspects of this practice may be applicable in all circumstances. This ASTM standard is not intended to represent or replace the standard of care by which the adequacy of a given professional service must be judged, nor should this document be applied without consideration of a project’s many unique aspects. The word “Standard” in the title means only that the document has been approved through the ASTM consensus process.1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

定价： 590元 / 折扣价： 502 元 加购物车

4.1 A standard procedure for blend preparation is essential to ensure material quality, specification compliance, and procedural uniformity.1.1 This practice covers the procedure for preparation of hot recycled bituminous blends for testing in the laboratory. The procedure involves an iterative trial blend process followed by the preparation of batch blends.1.2 The batch blends can be used for extensive evaluation such as viscosity, penetration, ductility, aging properties (such as Rolling Thin Film Oven or Thin-Film Oven tests, or both (RTFO/TFO)), composition analysis, solubility analysis, and other user-selected tests.1.3 This practice assumes that a representative reclaimed asphalt pavement (RAP) sample is extracted and the aged binder recovered using Test Methods D2172/D2172M and Test Method D1856 (this practice may be modified by using a rotary evaporator which is extensively evaluated in the minutes of the 18th Pacific Coast Conference on Asphalt Specifications2) or any other acceptable test method.1.4 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the standard.1.5 The text of this standard references notes and footnotes which provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the standard.1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.1.7 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

定价： 590元 / 折扣价： 502 元 加购物车

This guide covers the standard for the calculation and the substantiation of recycled content of packaging papers and paperboard products. The mass balance approach shall be used to determine absolute recycled content. This guide also covers the recycled content that contain any amount or kind of recycled fiber. Methods to calculate and substantiate levels of such recycled fiber is also covered. Classes and types of paper and paperboard product include, but are not limited to, folding boxboard, set-up boxboard; linearboard and corrugating medium for use in corrugated containers; tubestock; carrier board, bag paper and other related packaging paper and paperboard products.1.1 This guide provides an approach for both the calculation and the substantiation of recycled content of finished packaging paper and paperboard products. A mass balance approach is recommended for use by manufacturers since no physical or chemical test method is currently available to determine absolute recycled content of a finished paper product. Calculations are based on time weighted average flows which are based on furnish component flow rates and consistency. Recommended approaches to the calculations include by batch or by time weighted average for a specific grade or similar grades. It is not recommended that average recycle content be allocated by mathematical apportionment rather than by actual fiber content. That is, if 50 % recycled fiber is used over time that is the time weighted average. One cannot use this same data to report 50 % of the production is 100 % recycled.1.1.1 Percentage calculations are based on lb/ton or kg/tonne with the time frame constrained by machine and grade (see 10.1.1.1 and 10.1.1.2).1.1.2 Pulping and recycling yields are not used in these calculations. The calculations of recycled fiber content in the finished product is solely a function of type of fibers in the furnish flows, the volume of flow and the time period considered.1.2 This guide covers (1) recycled content of packaging paper and paperboard products that contain any amount or kind of recycled fiber; and (2) methods to calculate and substantiate the level(s) of recycled fiber content claimed by an agreement between the buyer and the seller.1.2.1 This guide may be used with or without modification to calculate or substantiate the recycled content of packaging paper and paperboard products when recovered nonfibrous materials (for example, filler) are a part of the recycled fiber furnish. Limited guidance is provided for appropriate modifications to this guide for the determination of amount of recycled nonfibrous materials in paper products.1.3 This guide does not recommend either an amount or a kind of recycled fiber or material to use since (1) the amount and kind of recycled content in a packaging paper or paperboard product should be agreed upon between the buyer and the seller, and (2) the calculation and substantiation procedures recommended may be used for any amount or kind of recycled material agreed upon between the buyer and the seller.1.4 The mass balance calculation method recommended by this guide may or may not comply with applicable federal, state, or local laws for recycled content statements intended to be received by consumers. Limited guidance on content statements is in Appendix X1.1.5 The following safety hazards caveat pertains only to the test method portion, Section 10, of this guide: This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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1.1 This specification covers only recycled post-consumer, or post-consumer or industrial/virgin blended polystyrene materials, both crystal and rubber modified, suitable for molding and extrusion. 1.2 This specification is intended as a means of calling out recycled plastic materials used in the fabrication of end items or parts. Material selection should be made by those having expertise in the plastics field after careful consideration of the design and performance required of the part, environment to which it will be exposed, fabrication process to be used, inherent properties to the material other than those covered by this specification, and economics. 1.3 The properties included in this specification are those required for identifying the compositions covered. Other requirements necessary for identifying particular characteristics important to specialized applications can be called out using the suffixes as given in Section 5. 1.4 The values stated in SI units are to be regarded as the standard. Note 1-There is no equivalent ISO standard.

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