American Society of Civil Engineers

Factors Influencing Crack-Induced Tensile Strength of Compacted Soil

by Tae-Hyung Kim, (Associate Professor, Dept. of Civil Engineering, Korea Maritime Univ., #1 Dongsam-Dong, Yeongdo-Gu Busan, 606-791 South Korea. E-mail:, Tae-Hoon Kim, (Researcher, Daewoo Inst. of Construction Technology, Daewoo Engineering & Construction Co., Ltd., 60 Songjuk Jangan Suwon Kyonggi 440-210, South Korea. E-mail:, Gi-Chun Kang, (corresponding author), (Postdoctoral Research Fellow, Dept. of Civil, Architectural, and Environmental Engineering, Missouri Univ. of Science and Technology, Rolla, MO 65409. E-mail:, and Louis Ge, M.ASCE, (Associate Professor, Dept. of Civil Engineering, National Taiwan Univ. 10617, Taiwan. E-mail:

Journal of Materials in Civil Engineering, Vol. 24, No. 3, March 2012, pp. 315-320, (doi:

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Document type: Technical Note
Abstract: Mode I (tensile) fracture is the most commonly observed failure in geostructures resulting from cracks in soil. Direct or indirect tensile tests have been used to evaluate the tensile strength of geomaterials. In this paper, the unconfined penetration device and experimental procedure were modified to reduce measurement errors. It was then used to determine the tensile strength of compacted soil. Factors influencing the tensile strength of the compacted soil, including the plasticity index, rate of loading, and size of specimen were discussed in detail, as well as its reliability. Experimental results indicated that the modified, unconfined penetration technique is sufficiently reliable and operator-friendly for determining the tensile strength of compacted soil.

ASCE Subject Headings:
Tensile strength
Compacted soils
Penetration tests

Author Keywords:
Tensile strength
Compacted soil
Unconfined penetration test