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ASTM C387/C387M-23
Standard Specification for Packaged, Dry, Combined Materials for Concrete and High Strength Mortar
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NORM herausgegeben am 1.6.2023
Informationen über die Norm:
Bezeichnung normen: ASTM C387/C387M-23
Ausgabedatum normen: 1.6.2023
SKU: NS-1150448
Zahl der Seiten: 5
Gewicht ca.: 15 g (0.03 Pfund)
Land: Amerikanische technische Norm
Kategorie: Technische Normen ASTM
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Die Annotation des Normtextes ASTM C387/C387M-23 :
This specification covers the production, properties, packaging, and testing of packaged, dry, combined materials for concrete and mortars. Concrete mixtures covered by this specification includes high-early strength concrete, normal strength concrete, normal weight concrete, high-strength mortar, and mortars for unit masonry. The purchaser shall specify the material desired as concrete, high strength mortar, or mortar for use with unit masonry, and the respective physical requirements. Materials used as ingredients in packaged, dry, combined materials for mortar and concrete shall be composed of aggregates, air-entraining admixtures, blended cement, chemical admixtures, fly ash, ground granulated blast-furnace slag, hydrated lime, latex and powder polymer modifiers, masonry cement, mortar cement, Portland cement, and silica fume. All aggregates shall be dried, without disintegration, to specific moisture content The proportions of cementitious material and aggregate shall be such that the strength requirements will be met. Packaged, dry, combined materials for concrete, high strength mortar and mortar for use with unit masonry shall conform to the respective compressive strength requirements. Scales conforming to the standards will be used for sampling concretes from a single batch using a sufficient quantity. A slump test will be performed to check if additional water is required. In sampling mortar, the contents of an entire package of dry, combined material for mortar for unit masonry or for concrete mortar shall be used. Mortar mixing equipment, which must be provided with a bowl positioning adapter, shall be used to ensure clearance for the largest size aggregate in the mix being tested. The specification includes the following testing methods for mortar: compressive strength, density and yield, air content, and water retention.
Keywords:
aggregate-cement aggregate combinations, cement mortars, combined concrete/mortar materials, concrete admixtures, concrete, packaged, concrete specifications, dry combined concrete/mortar materials, mortar-cement mortar, mortar, packaged, packaged dry combined materials, packaged concrete/mortar materials,, ICS Number Code 91.100.10 (Cement. Gypsum. Lime. Mortar),91.100.30 (Concrete and concrete products)
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