In 1958, the modified Proctor compaction test was developed as an ASTM standard.
2.
Currently, the procedures and equipment details for the standard Proctor compaction test is designated by ASTM D698 and AASHTO T99 . Also, the modified Proctor compaction test is designated by ASTM D1557 and AASHTO T180.
3.
Currently, the procedures and equipment details for the standard Proctor compaction test is designated by ASTM D698 and AASHTO T99 . Also, the modified Proctor compaction test is designated by ASTM D1557 and AASHTO T180.
4.
Laboratory compaction tests provide the basis for determining the percent compaction and molding water content needed to achieve the required engineering properties, and for controlling construction to assure that the required compaction and water contents are achieved.
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