Fig. 1. Strength changes with curing time
Fig. 2. Strength changes after 7days with binder content
Fig. 3. Particle distribution curves
Fig. 4. Correlation between compaction curve and CBR
Fig. 5. Unit weight with blows per layer
Fig. 6. Water content and CBR with blows per layer
Fig. 7. CBR with blows per layer
Fig. 8. Swelling with blows per layer
Fig. 9. Dry unit weight and unconfined compressive strength
Fig. 10. Water content and unconfined compressive strength
Fig. 11. Results of plate bearing test
Fig. 12. Comparison of construction with trial test
Table 1. Properties of the binder
Table 2. Properties of raw subgrade materials
Table 3. Design of strength for subgrade materials
Table 4. Conditions for laboratory mixing test
Table 5. Compaction energy for manufacturing specimens
Table 6. Properties of improved subgrade materials
Table 7. Subgrade conditions and swelling
Table 8. Laying thickness and number of times of compaction
References
- Ministry of Land, Infrastructure and Transport (2016), KDS 44 30 00: 2016 Road Earth Works, p.2 (in Korean).
- Ministry of Land, Transport and Maritime Affairs (2011), 2011 Road Pavement Integrated Guidelines, pp.88-92 (in Korean).
- Hong, S., Kim, Y. and Bae, G. (2015), "Geotechnical Characteristics of a Waste Lime Embankment", The Journal of Engineering Geology, Vol.25, No.4, pp.547-555. https://doi.org/10.9720/kseg.2015.4.547
- Lee, K., Jang, T., Hwang, T. and Song, Y. (2011), "Strength Properties of Subgrade Soil Modified by Cement", Journal of Korean Society of Hazard Mitigation, Vol.11, No.5, pp.141-147 (in Korean). https://doi.org/10.9798/KOSHAM.2011.11.5.141
- Phoon, K. K. and Kulhawy, F. H. (1996), "On Quantifying Inherent Soil Variability", Uncertainty in the Geologic Environment, Madison, WI, ASCE, pp.326-340.
- Shin, E. and Park, S. (2018), "Application of Paper Sludge Ash- Stabilized Soft Ground for Subgrade Soil", Journal of the Korean Geo-Environmental Society, Vol.19, Issue 6, pp.13-22 (in Korean). https://doi.org/10.14481/JKGES.2018.19.6.13
- Yeon, Y. (2017), Development of Eco-Friendly Solidification Agent for Improving Engineering Properties of Clay Ground, Ph.D. Thesis, Chungbuk National University, pp.107-109 (in Korean).
- Yu, G. (2011), Strength and Permeability Characteristics of soil solidified with agents made of Industrial by-products, M.S. Thesis, Chonnam National University, pp.27-62 (in Korean).