This method of test is intended for determining the relationship between the moisture content and density of soils when compacted in a given mold of a given size with a 4.54-kg (10-lb) rammer dropped from a height of 457 mm (18 in.). Four alternate procedures are provided as follows: ? Method A??A 101.60-mm (4-in.) mold: Soil material passing a 4.75-mm (No. 4) sieve Sections 4 and 5. ??Method B??A 152.40-mm (6-in.) mold: Soil material passing a 4.75-mm (No. 4) sieve Sections 6 and 7. ??Method C??A 101.60-mm (4-in.) mold: Soil material passing a 19.0-mm (?-in.) sieve Sections 8 and 9.? ??Method D??A 152.40-mm (6-in.) mold: Soil material passing a 19.0-mm (?-in.) sieve Sections 10 and 11. The method to be used should be indicated in the specifications for the material being tested. If no method is specified@ the provisions of Method A shall govern. This test method applies to soils mixtures that have 40 percent or less retained on the 4.75-mm (No. 4) sieve@ when Method A or B is used and 30 percent or less retained on the 19.0-mm (?-in.) sieve@ when Method C or D is used. The material retained on these sieves shall be defined as oversize particles (coarse particles). If the test specimen contains oversize particles@ and the test specimen used for field density compaction control@ corrections must be made according to T 224 to compare the total field density with the compacted specimen. The person or agency specifying this method shall specify a minimum percentage of oversize particles below which correction for oversize need not be applied. If no minimum percentage is specified@ correction shall be applied to samples with more than 5 percent by mass of oversize particles. If the specified oversized maximum tolerances are exceeded@ other methods of compaction control must be used. Note 1??One method for the design and control of the compaction of such soils is to use a test fill to determine the required degree of compaction and a method to obtain that compaction. Then use a method specification to control the compaction by specifying the type and size of compaction equipment@ the lift thickness and the number of passes.The following applies to all specified limits in this standard: For the purposes of determining conformance with these specifications@ an observed value or a calculated value shall be rounded off ??to the nearest unit?? in the last right-hand place of figures used in expressing the limiting value@ in accordance with R 11. The values stated in SI units are to be regarded as the standard.
T 180-2009 history
2023T/CIET 180-2023 Carbon emission accounting and reporting requirements for heat exchange equipment companies
2017T 180-2017 Standard Method of Test for Moisture-Density Relations of Soils Using a 4.54-kg (10-lb) Rammer and a 457-mm (18-in.) Drop
2015T 180-2015 Standard Method of Test for Moisture-Density Relations of Soils Using a 4.54-kg (10-lb) Rammer and a 457-mm (18-in.) Drop
2010T 180-2010 Standard Method of Test for Moisture-Density Relations of Soils Using a 4.54-kg (10-lb) Rammer and a 457-mm (18-in.) Drop
2009T 180-2009 Standard Method of Test for Moisture-Density Relations of Soils Using a 4.54-kg (10-lb) Rammer and a 457-mm (18-in.) Drop
2001T 180-2001 Standard Method of Test for Moisture-Density Relations of Soils Using a 4.54-kg (10-lb) Rammer and a 457-mm (18-in.) Drop