00822731

Component

https://doi.org/10.3141/1772-18

http://scholar.google.com...lion&publication_year=2001

The tube suction test (TST) was developed in a cooperative effort between the Finnish National Road Administration and the Texas Transportation Institute for assessing the moisture susceptibility of granular base materials. The moisture-susceptibility ranking is based on the mean surface dielectric value of compacted specimens after a 10-day capillary soak in the laboratory. The factors that influence moisture susceptibility are discussed, and the use of dielectric measurements in the TST is explained. The TST protocol is given. The repeatability of the test is then evaluated at three different dielectric values, and statistical techniques are employed to enable estimation of the number of replicate samples required in the TST to achieve specified levels of tolerance and reliability. On the basis of the promising results of the test, the Texas Department of Transportation will begin implementation of the TST statewide during 2001.

This paper appears in Transportation Research Record No. 1772, Soil Mechanics 2001.

English

p. 151-157

2001

Transportation Research Record

0309072360

Figures (6) ; Photos (2) ; References (12) ; Tables (3)

Dielectric properties; Granular bases; Reliability (Statistics); Test procedures; Tube suction test

Moisture susceptibility; Repeatability

Finland; Texas

Data and Information Technology; Design; Geotechnology; Highways; Pavements; I22: Design of Pavements, Railways and Guideways; I42: Soil Mechanics

TRIS, TRB, ATRI

Jan 25 2002 12:00AM

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