ASTM D1557 Standard Test Methods for Laboratory Compaction of Soil Modified Effort -- eLearning Course

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Price: $115
About the Course

This course covers laboratory compaction methods used to determine the relationship between molding water content and dry unit weight of soils (compaction curve) compacted in a 4- or 6-in. (101.6- or 152.4-mm) diameter mold with a 10.00-lbf. (44.48-N) rammer dropped from a height of 18.00 in. (457.2 mm) producing a compactive effort of 56 000 ft-lbf/ft3 (2700 kN-m/m3).

The course takes approximately 1 hour to complete and includes instructional video content, interactive knowledge checks, and a self-grading quiz. Downloadable resources include a pdf of the standard.

Learning Outcomes

By the end of this course, you will be able to:

  • Describe the apparatus and related components used to determine laboratory compaction characteristics of soil.
  • Recall the standardization requirements for the following apparatus: balance, molds, and rammer (manual and mechanical).
  • Recall the requirements for the test specimen.
  • List the steps for the preparation of apparatus.
  • Describe the procedures for Moist Preparation Method, Dry Preparation Method, and Compaction of the soil specimens.
  • Identify the steps for calculation and plotting (compaction curve) for these test methods.
  • List the minimum reporting requirements for the data sheet(s)/form(s).


Anyone who runs the D1557 test method or who needs an understanding of the test method and how it is properly run.

Certificate and CEUs

CEUs: .1 or 1 PDH

Certificate: A certificate is available upon successful completion of the course and an 80% or higher score on the exam.

ASTM Standards Referenced

ASTM D1557

Related Products

This training course is part of the following certificate programs:


1 year online subscription for a Single User Only via username/password. Requires internet access.

For pricing for Multi-User access or for more information, please contact sales here or call 1-877-909-ASTM.

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