Influence of Repeated Wetting-Drying Process on Strength of Cement Admixed Soil Improved by Natural Liquid Latex Rubber

Abstract:

This study investigated the impact of wet-dry cycling on the unconfined compressive strength of compacted cement-soil mixed with latex rubber. The objective was to simulate the fluctuating moisture conditions in the soil caused by alternating rainy and dry seasons over multiple years. The experiments compared cement-soil samples to rubber-cement-soil samples. The amount of cement used was equivalent to 8 percent of the dry soil mass, while the latex emulsion content was 8 percent by cement mass. The wet-dry cycling process was performed on the samples cured for 28 days. The results indicated that the rubber-cemnet-soil samples consistently exhibited enhanced compressive strength compared to the cement-soil samples. During the initial two cycles of the wet-dry process, the rubber-cement-soil samples demonstrated a greater rate of compressive strength improvement than the cement-soil samples. This indicates that the rubber particles contribute to strengthening the soil during the wetting-drying process. It is worth noting that the rate of compressive strength increase for both sample sets becomes comparable after the second cycle of the wetting-drying process.

• Periodical: Key Engineering Materials (Volume 999)
• Pages: 95-100
• DOI: https://doi.org/10.4028/p-THtXY0
• Online since: December 2024
• Authors: Anuchit Uchaipichat*
• Keywords: Cement Admixed Soil, Natural Latex Rubber, Soil Strength, Unconfined Compression Tests, Wetting-Drying Cycle

References

[1] K.M. Rollins, M.E. Adsero, D.A. Brown, Use of Jet Grouting to Increase Lateral Pile Group Resistance in Sofy Clay, The 14 th World Conference on Earthquake Engineering, Beijing, China, (2008).

DOI: 10.1061/41023(337)34

[2] B. Kalantari, B.K.K. Huat, Peat Soil Stabilization Using Ordinary Portland Cement, Polypropylene Fibers, and Air Curing Technique, Electron. J. Geotech. Eng. 13(J) (2008) 1-13.

[3] A. Uchaipichat, Laboratory Investigation of Thermal Effect on Compressive Strength of Cement Admixed Clay, Electron. J. Geotech. Eng. 15(M) (2010) 1277-1284.

[4] M. Park, J. Jeon, S. Lee, Assessment of Geotechnical Characteristics on Cement-Admixed Composite, Proceedings of the Twenty-third International Offshore and Polar Engineering Anchorage, Alaska, USA, (2013), pp.663-668.

[5] A. Uchaipichat, Effect of Curing Pressure on Compression and Consolidation Behaviorsof Cement Admixed Clay, Key Eng. Mater.1074 (2022) 143-147.

DOI: 10.4028/www.scientific.net/kem.744.71

[6] A. Uchaipichat, Experimental Study on Unconfined Compressive Strength of Natural Rubber Modified Soil Cement, Mater. Sci. Forum.44 (2017) 71-76.

DOI: 10.4028/p-885f8s

[7] A. Uchaipichat, Prediction of Shear Strength for Unsaturated Soils under Drying and Wetting Processes, Electron. J. Geotech. Eng. 15(K) (2010) 1087-1102.

[8] ASTM Standard D558-11, Standard Test Methods for Moisture-Density (Unit Weight) Relations of Soil-Cement Mixtures, ASTM International, West Conshohocken, PA, 2011, DOI: 10.1520/D0558-11, www.astm.org (2011).

DOI: 10.1520/mnl12164m

[9] ASTM Standard D1557-12e1, Standard Test Methods for Laboratory Compaction Characteristics of Soil Using Modified Effort (56,000 ft-lbf/ft3 (2,700 kN-m/m3)), ASTM International, West Conshohocken, PA, 2012, DOI: 10.1520/D1557-12E01, www.astm.org (2012).

DOI: 10.1520/d0698-12r21

[10] ASTM Standard D559, Standard Test Method for Wetting and Drying Compacted Soil-Cement Mixture, ASTM International, West Conshohocken, PA, 2003, DOI: 10.1520/D0559-03, www.astm.org (2003).

[11] ASTM Standard D1633-17, Standard Test Methods for Compressive Strength of Molded Soil-Cement Cylinders, ASTM International, West Conshohocken, PA, 2017, DOI: 10.1520/D1633-17, www.astm.org (2017).