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Standard Test Method for Flat Particles, Elongated Particles, or Flat and Elongated Particles in Coarse Aggregate (Withdrawn 2019)
Automatische name übersetzung:
Standard Test Method for Wohnung Partikel, Längliche Partikel oder Wohnung und Längliche Partikel in groben Gesteins
NORM herausgegeben am 1.6.2010
Bezeichnung normen: ASTM D4791-10
Anmerkung: UNGÜLTIG
Ausgabedatum normen: 1.6.2010
SKU: NS-28583
Zahl der Seiten: 6
Gewicht ca.: 18 g (0.04 Pfund)
Land: Amerikanische technische Norm
Kategorie: Technische Normen ASTM
Keywords:
aggregates, coarse aggregates, particle shape, Size/size distribution analysis, Coarse aggregate, Elongated aggregate particles, Flat aggregate particles, Particle analysis--aggregate, Sieve analysis--aggregate, ICS Number Code 91.100.30 (Concrete and concrete products)
Significance and Use | ||||||||||
The particles shape of course aggregates influences the properties of some construction materials and may affect their placement and consolidation. This test method provides a means for checking compliance with specifications that limit such particles or to determine the relative shape characteristics of coarse aggregates. |
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1. Scope | ||||||||||
1.1 This test method covers the determination of the percentages of flat particles, elongated particles, or flat and elongated particles in coarse aggregates. Two procedures, Method A and Method B, are presented in this standard. Method A is a reflection of the original procedure as developed prior to Superpave and is intended for all non-Superpave applications. Method B is a comparison of the maximum particle dimension to the minimum particle dimension and is intended for use with Superpave specifications. 1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. 1.2.1 Exception —(Regarding sieves, per Specification E11) The values stated in SI units shall be considered standard for the dimensions of the wire cloth openings and the diameter of the wires used in the wire cloth. When sieve mesh sizes are referenced, the alternate inch-pound designations are provided for information purposes and enclosed in parenthesis. 1.3 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 and health practices and determine the applicability of regulatory limitations prior to use. |
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2. Referenced Documents | ||||||||||
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Historisch
1.12.2011
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1.12.2011
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15.7.2011
Historisch
1.10.2009
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1.8.2009
Historisch
1.11.2007
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