Browse > Article
http://dx.doi.org/10.14481/jkges.2014.15.2.17

Field Appliciability Evaluation of Eco-friendly Mixed Soil  

Park, Kyungsik (Dept. of Aerial Geoinformatics, Inha Technical College)
Oh, Sewook (Dept. of Construction and Disaster Prevention Engineering, Kyungpook National University)
Bae, Wooseok (NANO-GEO ENC Co., Ltd.)
Publication Information
Journal of the Korean GEO-environmental Society / v.15, no.2, 2014 , pp. 17-25 More about this Journal
Abstract
In the present study, it were performed an unconfined compression test and a field applicability test according to a mixed ratio of SS, soil type and curing period to analyze strength and deformation characteristic in order to evaluate engineering characteristics of soil mixed pavements using the eco-friendly soil stabilizer (SS). The test results revealed that SS mixed soil shows fast strength development at the initial curing time while 28-day strength amounted for 97% of the final strength. Furthermore, coarse-grained dredged sand (DS) and weathered granitic soil (WGS) have a larger ratio of deformation coefficient with respect to unconfined compressive strength than fine-grained dredged clay (DC) and organic soil (OS). Moreover, a comparison test between natural and forced drying conditions was conducted and test result showed 54% to 67% of strength degradation while having 55% to 63% of strength degradation in the freezing and thawing test result. Finally, a repeated loading test result showed that DS experiences up to 35% of strength reduction compared to initial strength under 10,000 times loading in maximum. Thus, it was validated that an appropriate amount of fine-grained sand is necessary to secure resistance capability to repeated loading.
Keywords
Eco-friendly stabilizer; Freezing and thawing; Repeated load; Deformation modulus;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
1 田口技術研究所 (2010), 土系舗装工法 設計施工指針, 田口技術研究所(遊步道.公園路.步道編), pp. 156-158.
2 Chun, B. S. (2001), Improvement effectiveness of soft ground using hardening agent, Korean Geo-Environmental Society Vol. 2, No. 2, pp. 59-64 (in Korean).
3 Chun, B. S., Gang, I. S. and Koh, Y. I. (1993), The frostsusceptibility of compacted coal ash with proper mixing ratio of fly ash to bottom ash, Journal of the Korean Society of Civil Engineers, Vol. 13, No. 1, pp. 173-178 (in Korean).
4 Kim, B. I., Kim, Y. U. and Lee, S. H. (2002), Unconfined compressive strength of soil cement mixed with NSC, Journal of the Korean Geotechnical Society, Vol. 18, No. 4, pp. 159-165 (in Korean).   과학기술학회마을
5 Ko, J. H. (2012), Mechanical properties of natural soil pavement with environmental-friendly stabilizer on the waterfront road, Hongik University, Master's thesis, pp. 1-32 (in Korean).
6 Kwon, Y. C. and Oh, S. W. (2012), Strength characteristics of the soil mixed with a natural stabilizer, Journal of Korean Geo-Enviromental Society, Vol. 13, No. 1, pp. 45-51 (in Korean).
7 Lee, G. H. (2012), Engineering properties and applicability of soil mixed pavement with natural soil stabilizer, Incheon National University, Ph D. dissertation, pp. 20-51 (in Korean).
8 McGinn, A. and O'Rourke, T. (2003), Performance of deep mixing methods at fort point channel, report to massachusetts rurnpike authority, Federal Highway Administration and Bechtel/Parsons Brinkerhoff, Cornell University, pp. 114-209.
9 Oh, S. W., Seo, D. J. and Kim, D. G. (2010), Developement of stabilizer for eco-friendly soil pavement, Journal of The Korean Society of Forest Engineering, Vol. 8, No. 3, pp. 280-285 (in Korean).
10 Park, S. S., Kim, Y. S., Choi, S. G. and Shin, S. E. (2008), Unconfined compressive strength of cemented sand reinforced with short fibers, Journal of the Korean Society of Civil Engineers, Vol. 28, No. 4C, pp. 213-220 (in Korean).   과학기술학회마을
11 PWRI (2009), Soil pavement handbook, Daesung Publishing Company, pp. 1-31 (in Korean).