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Standard Specification for Graded Aggregate Material For Bases or Subbases for Highways or Airports
Automatische name übersetzung:
Standard-Spezifikation für Graded Zuschlagstoff für Untergründe oder Anschlussplatten für Autobahnen oder Flughäfen
NORM herausgegeben am 10.2.2003
Bezeichnung normen: ASTM D2940-03
Anmerkung: UNGÜLTIG
Ausgabedatum normen: 10.2.2003
SKU: NS-22017
Zahl der Seiten: 2
Gewicht ca.: 6 g (0.01 Pfund)
Land: Amerikanische technische Norm
Kategorie: Technische Normen ASTM
Keywords:
aggregate, base course, subbase, coarse aggregate, fine aggregate, ICS Number Code 93.080.10 (Road construction), 93.120 (Construction of airports)
1. Scope | ||||||||||||||||||||
1.1 This specification covers quality-controlled graded aggregates that, when hauled to and properly spread and compacted on a prepared grade to appropriate density standards, may be expected to provide adequate stability and load support for use as highway or airport bases or subbases. Note 1— The engineer is cautioned to provide appropriate construction specifications to ensure compaction to an extent that further densification from traffic loadings on the completed pavement will be insignificant. The method suggested is to require compaction on a firm foundation of a short control strip of the material at a suitable moisture content, by means of vibratory or other proven effective rollers or tampers, until no further increase in density results. Compaction requirements should ensure that an average density of certain appropriate percentages of the control strip maximum density be achieved on the balance of the job; for base courses, 98% is suggested as the minimum average requirement. 1.2 The values stated in SI units are to be regarded as the standard. The inch-pound units, shown in parentheses, are for information only. 1.3 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. |
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2. Referenced Documents | ||||||||||||||||||||
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