Fundamental Characteristics of Cement-Admixed Clay in Deep Mixing
Publication: Journal of Materials in Civil Engineering
Volume 18, Issue 2
Abstract
This paper examines the compressibility and strength characteristics of high water content cement-admixed clay in deep mixing applications. During curing time, both cement content and total clay water content of the clay–water–cement mixture significantly affect the strength and compressibility of the resulting stabilized clay. To ensure optimum improvement, the selection of an appropriate total clay water content for a mixture with a certain cement content is crucial. Furthermore, the fundamental parameters such as the ratio of after-curing void ratio and cement content have been found sufficient to characterize the strength and compressibility of cement-admixed clay. The results of unconfined compression and consolidated–undrained tests have proven that the ratio combines together the influences of clay water content, cement content, and curing time as well as curing pressure on the strength of cement-admixed clay. In addition, useful empirical relationships on deep mixing application are presented.
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References
American Society for Testing and Materials (ASTM). (1985). “Standard test method for unconfined compressive strength of cohesive soil.” ASTM 2166-85, Philadelphia.
American Society for Testing and Materials (ASTM). (1988). “Standard test method for consolidated-undrained triaxial compression test on cohesive soils.” ASTM 4767–88 Philadelphia.
Assarson, K., Broms, B., Granhom, S., and Paus, K. (1974). Deep stabilization of soft cohesive soils. Linden Alimark, Sweden.
Bergado, D. T., Anderson, L. R., Miura, N., and Balasubramaniam, A. S. (1996). Soft ground improvement in lowland and other environments, American Society of Civil Engineers, New York.
Bergado, D. T., and Lorenzo, G. A. (2002). “Recent developments of ground improvement in soft Bangkok clay.” Proc. Int. Symp. on Lowland Technology, Saga Univ., Japan, 17–26.
Bergado, D. T., and Lorenzo, G. A. (2005). “Economical mixing method for cement deep mixing.” Proc. ASCE GeoFrontiers 2005, ASCE, Reston, Va.
Burland, J. B. (1990). “On the compressibility and shear strength of natural clays.” Geotechnique, 40(3), 329–373.
Diamond, S., and Kinter, E. B. (1965). “Mechanism of soil-lime stabilization—An interpretative review.” Highw. Res. Rec., 92, 83–102.
Horpibulsuk, S., Bergado, D. T., and Lorenzo, G. A. (2004). “Compressibility of cement-admixed clays at high water content.” Geotechnique, 54(2), 151–154.
Kamon, M., and Bergado, D. T. (1991). “Ground improvement techniques.” Proc., 9th Asian Regional Conf. on Soil Mechanics and Foundation Engineering, Vol. 2, Bangkok, Thailand, 526–546.
Lea, F. M. (1956). The chemistry of cement and concrete, Edward Arnold, London.
Lorenzo, G. A., and Bergado, D. T. (2003a). “New consolidation equation for soil-cement piles improved ground.” Can. Geotech. J., 40(2), 265–275.
Lorenzo, G. A., and Bergado, D. T. (2003b). “Fundamentals of high water content deep mixing piles.” Proc. Int. Symp. 2003 on Soil/Ground Improvement and Geosynthetics in Waste Containment and Erosion Control Applications, Asian Institute of Technology, Thailand, 155–174.
Lorenzo, G. A., and Bergado, D. T. (2004). “Fundamental parameters of cement-admixed clay—New approach.” J. Geotech. Geoenviron. Eng., 130(10), 1042–1050.
Miura, N., Horpibulsok, S., and Nagaraj, T. S. (2001). “Engineering behavior of cement stabilized clay at high water content.” Soils Found., 41(5), 33–45.
Petchgate, K., Jongpradist, P., and Panmanajareonphol, S. (2003). “Field pile load test of soil-cement column in soft clay.” Proc. Int. Symp. 2003 on Soil/Ground Improvement and Geosynthetics in Waste Containment and Erosion Control Applications, Asian Institute of Technology, Thailand, 175–184.
Porbaha, A. (1998). “State of the art in deep mixing technology. Part I: Basic concepts and overview.” Ground Improvement, 2, 81–92.
Porbaha, A., Shibuya, S., and Kishida, T. (2000). “State of the art in deep mixing technology. Part III: Geomaterial characterization.” Ground Improvement, 3, 91–110.
Saitoh, S., Kawasaki, T., Niina, S., Babaski, R., and Miyata, T. (1980). “Research on DMM using cementitious agents (part 10)—Engineering properties of treated soils.” Proc., 15th National Conference of the JSSMFE, Tokyo, 717–720.
Uddin, K., Balasubramaniam, A. S., and Bergado, D. T. (1997). “Engineering behavior of cement-treated Bangkok soft clay.” Geotech. Eng., 28(1), 89–119.
Win, S. M. K. (1997). “Curing time dependent properties of cement treated Bangkok clay.” M.Eng. thesis No. GE-96-31, Asian Institute of Technology, Bangkok, Thailand.
Yang, D. S. (1997). “Deep mixing.” Proc. Geo-Institute Conf. (Geo Logan ’97), ASCE, Logan, 130–150.
Information & Authors
Information
Published In
Journal of Materials in Civil Engineering
Volume 18 • Issue 2 • April 2006
Pages: 161 - 174
Copyright
© 2006 ASCE.
History
Received: Feb 15, 2005
Accepted: Jul 29, 2005
Published online: Apr 1, 2006
Published in print: Apr 2006
Notes
Note. Associate Editor: Hilary I. Inyang
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