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ASTM C91/C91M:23

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Hinweis: Neuste Ausgabe: ASTM C91/C91M:25

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Zusammenfassung

This specification covers three types of masonry cement for use where mortar for masonry is required. Masonry cement shall conform to the applicable physical property requirements prescribed. The masonry cement shall be sampled in accordance with practice C 183. The temperature and relative humidity of the air in the vicinity of the mixing slab and dry materials, molds, base plates, and mixing bowl shall conform to the requirements of test method C 109/C 109M. Determine normal consistency by the Vicat apparatus in accordance with test method C 187. Determine autoclave expansion in accordance with test method C 151. Determine the time of setting by the Gillmore needle method in accordance with test method C 266. Determine the density of the masonry cement in accordance with test method C 188, using kerosene as the liquid. The sand shall be a blend of equal parts by weight of graded standard sand and standard 20-30 sand conforming to specification C 778. The compressive testing procedures for mortars are presented. Water retention shall be determined in accordance with the procedures in test method C 1506.

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  • Standard von ASTM
  • Ausgabedatum:
  • Edition: 23
  • Dokumenttyp: IS
  • Seiten
  • Herausgeber: ASTM
  • Lieferant: ASTM
  • ICS: 91.100.10

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