Standard Test Method for Microscopical Determination of Parameters of the Air-Void System in Hardened Concrete
NORM herausgegeben am 1.10.2011
Bezeichnung normen: ASTM C457/C457M-11
Anmerkung: UNGÜLTIG
Ausgabedatum normen: 1.10.2011
Zahl der Seiten: 14
Gewicht ca.: 42 g (0.09 Pfund)
Land: Amerikanische technische Norm
Kategorie: Technische Normen ASTM
Keywords:
air content, air void parameters of hardened concrete, area-prepared surface required, average chord-length of voids, determination of air-void parameters, entrained void, entrapped void, grits for lapping hardened concrete, index point, lapping, length of traverse required, linear-traverse method, microscopical, number of points required, paste-air ratio, paste-air ratio modification, paste content, point-count method (modified), sample preparation for microscopical analysis, spacing factor