1. AASHTO M6 2013. Standard specification for fine aggregate for hydraulic cement concrete.
2. AASHTO T176 2017. Standard method of test for plastic fines in graded aggregates and soils by use of the sand equivalent test.
3. AASHTO T27 2014. Standard method of test for sieve analysis of fine and coarse aggregates.
4. AASHTO T88 2020. Standard method of test for particle size analysis of soils.
5. AASHTO T89 2013. Standard method of test for determining the liquid limit of soils.