ASTM D6449-99(2015)

1.1This test method covers a procedure, used both in the laboratory and in the field, for determining the time of efflux of a specified volume of the fine aggregate concrete through a standardized flow cone and used for fabric formed concrete (FFC); however, the test method may also be used for other fluid concrete.

1.2It is for use with fine aggregate concrete containing fine aggregate as define in Specification C33.

1.3This test method is intended for use with fine aggregate concrete having an efflux time 9 to 15 s.

1.4The values stated in SI units are to be regarded as the standard.

1.5This 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.