This standard is being balloted for withdrawal with no replacement because The recommendation was based on discussions during several subcommittee meetings of D18.05. Discussions during subcommittee meetings included the topic of overlap of content with D4546-08 (One-Dimensional Swell or Collapse of Cohesive Soils). In the D4546-08 Standard test method, wetting-induced swell or collapse of natural or compacted soil specimens can be measured under different pressures representing different soil depths or different foundation pressures. The D-5333 Standard Test Method describes two test procedures: 1.) Collapse Index - Percent collapse measured under a stress of 200 kPa (2 tsf or 4000 psf). This is a very high stress level and corresponds to approximately 30 feet of soil overburden. Many individuals in Arizona, Australia, and California were contacted but nobody could explain the reason for selecting such a high stress level for defining Collapse Index. This pressure is considered to be too high and not useful. Common usage of this test was not evident. 2.) Test for measuring percent of wetting-induced collapse at any stress level. This test is similar to and overlaps with the D4546 test procedure. Only a select few individuals present at the meetings were conversant in the contents of the standard. Volunteers willing to work on this standard to make it useful again, resolve issues regarding the stress level, and remove overlap with D4546 are encouraged to vote negative and to contact the subcommittee chair for information on how to revise an ASTM standard.
Keywordscollapse; collapse index; collapse potential; compressibility; consolidation; soil;
Withdrawn Due to Overdue Std