STRENGTH PROPERTIES OF SOIL SPOIL FROM THE CONSTRUCTION OF SOIL CEMENT COLUMN: A CASE STUDY OF SUVARNABHUMI CANAL ROAD IMPROVEMENT PROJECT
Article Sidebar
Main Article Content
Abstract
This research investigated the properties of soil spoil (spoil), which is the waste from the construction of soil cement column with wet process. The strength of spoil was investigated by unconfined compressive strength (UCS) test. Besides, X-Ray Diffraction (XRD) analysis was characterized and compared the mineralogical composition of spoils, Ordinary Portland Cement (OPC) and Bangkok clay. The soil-spoil samples were evaluated under wrapped and unwrapped conditions for 4-days, 7-days, and 14-days curing period, respectively. The results revealed that the strength of spoil was slightly increased and correlated with the increasing of curing time. The strength of soil cement under unwrapped condition was found to be higher than the wrapped condition.In addition, the mineralogical compositions of spoil were in different form compared to OPC, but relatively similar to that of Bangkok clay. The strength developing in the soil spoil was thus attributed to the evaporation of physical water. Therefore, the soil spoil can be graded as a ground level instead of disposal after finishing.
Article Details
The published articles are copyright of the Engineering Journal of Research and Development, The Engineering Institute of Thailand Under H.M. The King's Patronage (EIT).
References
Pretorlus, P. C. Design considerations for pavements containing soil-cement base, Ph. D. Thesis, University of California, 1970, pp. 1-210.
Ruenkrairergsa, T., and Thaweewonsodsai, A. Stress-strain characteristics of cement treated materials under unconfined compression test, RD.179, Road Research and Development Center, Department of Highways, 2000.
Jamsawang. P., Vottipruex, P., and Horpibusuk, S. Flexural strength characteristics of compacted cement-polypropylene fiber sand, Journal of Materials in Civil Engineering, 2015, 27(9), 04014243.
Croce, P., Flora, A., Modoni, G. Jet Grouting: Technology, Design and Control, (1 edition)., CRC Press, 2014.
Yoshida, H. (2012). Recent developments in jet grouting. In Grouting and Deep Mixing 2012, pp. 1548-1561.
Ribeiro, D., Neri, R., and Cardoso, R. Influence of water content in the UCS of soil-cement mixtures for different cement dosages. Procedia Engineering, 2016, 143, pp. 59-66.
Hayward Baker. Ground iimprovement, (2017), Available from: https://www.haywardbaker.com/solutions/ground-improvement [Accessed 5 April, 2020].