Highway Sustainability Research Center - CENCollege of Engineering 

Aggregate Test Procedures

The ATMC Materials Lab conducts numerous aggregate testing procedures. Click on a test designation to see a description of that test.

AGGREGATE TEST PROCEDURES
TEST DESIGNATION TEST TITLE
AASHTO T 11 Materials Finer than 75 μm (No. 200) Sieve in Mineral Aggregates by Washing
AASHTO T 27 Sieve Analysis of Fine and Coarse Aggregates
AASHTO T 37 Sieve Analysis of Mineral Filler for Bituminous Paving Materials
AASHTO T 84 Specific Gravity and Absorption of Fine Aggregate
AASHTO T 85 Specific Gravity and Absorption of Coarse Aggregate
AASHTO T 176 Plastic Fines in Graded Aggregates and Soils by Use of the Sand Equivalent Test
AASHTO T 248 Reducing Samples of Aggregate to Testing Size
AASHTO T 304 Uncompacted Void Content of Fine Aggregate
ASTM D4791 Standard Test Method for Flat Particles, Elongated Particles, or Flat and Elongated Particles in Coarse Aggregate
NOTE: All methods according to the AASHTO Standard Specifications for Transportation Materials and Methods of Sampling and Testing

Test Descriptions

AASHTO T 11-97
Materials Finer than # 200 Sieve in Mineral Aggregates by Washing
This test method is used to determine the amount of material finer than a 75-mm (No. 200) sieve in aggregate by washing. Clay particles and other aggregate particles that are dispersed by the wash water, as well as water-soluble materials, will be removed from the aggregate during this test.


AASHTO T 27-99
Sieve Analysis of Fine and Coarse Aggregate
This method covers the determination of the particle size distribution of fine and coarse aggregates by sieving.


AASHTO T 37-01
Sieve Analysis of Mineral Filler for Bituminous Paving Materials
This method of test covers the sieve analysis of mineral fillers used in bituminous paving materials.


AASHTO T 84-00
Specific Gravity and Absorption of Fine Aggregate
This method covers the determination of bulk and apparent specific gravity, 23/23°C (73.4/73.4°F), and absorption of fine aggregate.


AASHTO T 85-91(2000)
Specific Gravity and Absorption of Coarse Aggregate
This method covers the determination of specific gravity and absorption of coarse aggregate. The specific gravity may be expressed as bulk specific gravity, bulk specific gravity (saturated-surface dry (SSD)), or apparent specific gravity. The bulk specific gravity (SSD) and absorption are based on aggregate after 15 hours soaking in water. This method is not intended to be used with lightweight aggregates.


AASHTO T 176-02
Plastic Fines in Graded Aggregates and Soils by Use of the Sand Equivalent Test
This test is intended to serve as a rapid field test to show the relative proportions of find dust or claylike material in soils or graded aggregates.


AASHTO T 248-02
Reducing Samples of Aggregate to Testing Size
These methods cover the reduction of large samples of aggregate to the appropriate size for testing employing techniques that are intended to minimize variations in measured characteristics between the test samples so selected and the large sample.


AASHTO T 304-96
Uncompacted Void Content of Fine Aggregate
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.


ASTM D4791
Standard Test Method for Flat Particles, Elongated Particles, or Flat and Elongated Particles in Coarse Aggregate
This test method covers the determination of the percentage of flat particles, elongated particles, or flat and elongated particles in coarse aggregate.*

*According to the 2003 Annual Book of ASTM Standards




 Last Updated On: 11/16/06

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