AASHTO Designation: T 304-08 pdf free download

Standard  Method of Test for

Uncompacted  Void  Content of Fine  Aggregate

AASHTO Designation: T 304-08


AASHTO Designation: T 304-08 pdf free download

1.1.This method describes the determination of the loose uncompacted void content of a sample of fine aggregate.

When measured on any aggregate of a known grading, void content provides an indication of that aggregate’s angularity, sphericity, and surface texture compared with other fine aggregates tested in the same grading.

When void content is measured on an as-received fine aggregate grading, it can be an indicator of the effect of the fine aggregate on the workability of a mixture in which it may be used.

1.2.Three procedures are included for the measurement of void content.

Two use graded fine aggregate (standard grading or as-received grading), and the other uses several individual size fractions for void content determinations:

1.2.1.Standard Graded Sample {Method AJ-This method uses a standard fine aggregate grading that is obtained by combining individual sieve fractions from a

typical fine aggregate sieve analysis. See the section on Preparation of Test Samples for the Grading.

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