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Description of ASTM-C294 2012ASTM C294 - 12Standard Descriptive Nomenclature for Constituents of Concrete AggregatesActive Standard ASTM C294 | Developed by Subcommittee: C09.65 Book of Standards Volume: 04.02 ASTM C294Significance and Use This descriptive nomenclature provides information on terms commonly applied to concrete aggregates. This standard is intended to assist in understanding the meaning and significance of the terms. Many of the materials described frequently occur in particles that do not display all the characteristics given in the descriptions, and most of the described rocks grade from varieties meeting one description to varieties meeting another with all intermediate stages being found. The accurate identification of rocks and minerals can, in many cases, be made only by a qualified geologist, mineralogist, or petrographer using the apparatus and procedures of these sciences. Reference to these descriptions may, however, serve to indicate or prevent gross errors in identification. Identification of the constituent materials in an aggregate may assist in characterizing its engineering properties, but identification alone cannot provide the sole basis for predicting behavior of aggregates in service. Aggregates of any type or combination of types may perform well or poorly in service depending upon the exposure to which the concrete is subjected, the physical and chemical properties of the matrix in which they are embedded, their physical condition at the time they are used, and other factors. Constituents that may occur only in minor amounts in the aggregate may or may not decisively influence its performance. Information about concrete aggregate performance in concrete has been published by ASTM. 1. Scope 1.1 This descriptive nomenclature provides brief descriptions of some of the more commonly occurring, or more important, natural and artificial materials of which mineral aggregates are composed. The descriptions provide a basis for understanding these terms as applied to concrete aggregates. When appropriate, brief observations regarding the potential effects of using the natural and artificial materials in concrete are discussed. Note 1These descriptions characterize minerals and rocks as they occur in nature and blast-furnace slag or lightweight aggregates that are prepared by the alteration of the structure and composition of natural material. Information about lightweight aggregates is given in Specifications C330 , C331 , and C332 . 1.2 This standard does not include descriptions of constituents of aggregates used in radiation shielding concrete. See Descriptive Nomenclature C638 . 1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
ASTM Standards C125 Terminology Relating to Concrete and Concrete Aggregates C227 Test Method for Potential Alkali Reactivity of Cement-Aggregate Combinations (Mortar-Bar Method) C289 Test Method for Potential Alkali-Silica Reactivity of Aggregates (Chemical Method) C330 Specification for Lightweight Aggregates for Structural Concrete C331 Specification for Lightweight Aggregates for Concrete Masonry Units C332 Specification for Lightweight Aggregates for Insulating Concrete C638 Descriptive Nomenclature of Constituents of Aggregates for Radiation-Shielding Concrete Keywords ICS Code ICS Number Code 01.040.91 (Construction materials and building (Vocabularies)); 91.100.10 (Cement. Gypsum. Lime. Mortar) DOI: 10.1520/C0294-12 ASTM International is a member of CrossRef. ASTM C294The following editions for this book are also available...
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About ASTMASTM International, formerly known as the American Society for Testing and Materials (ASTM), is a globally recognized leader in the development and delivery of international voluntary consensus standards. Today, some 12,000 ASTM standards are used around the world to improve product quality, enhance safety, facilitate market access and trade, and build consumer confidence. ASTM’s leadership in international standards development is driven by the contributions of its members: more than 30,000 of the world’s top technical experts and business professionals representing 150 countries. Working in an open and transparent process and using ASTM’s advanced electronic infrastructure, ASTM members deliver the test methods, specifications, guides, and practices that support industries and governments worldwide. |
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