Use of Bioslurry for Stabilization of Florida Soils
Publication: Geo-Congress 2024
ABSTRACT
In recent years, microbially and enzyme-induced calcite precipitation (MICP and EICP) have gained traction as ecologically friendly methods for stabilizing soils. More recently, using the concepts associated with MICP and EICP, “bioslurry” was developed. Bioslurry is very similar to traditional MICP, but calcium and urea are added to the initial bacterial solution. In this study, several Florida soils were treated with bioslurry using a combination of techniques, ratios of bioslurry to cementation solution, and solution concentrations. Specifically, two soils were examined—beach sand and soil with high organic content. Beach sand specimens were treated via a surface percolation technique and subject to erosion testing using a pocket erodometer. Soils with high organic content were treated using a hand mixing technique and were tested for unconfined compressive strength. In addition, preliminary X-ray diffraction analysis was conducted on treated specimens to characterize crystallization. Regardless of soil-type or test-type, results appeared to indicate that optimization was achieved when approximately 25% of the specimens’ pore volumes were filled with bioslurry and 75% of their pore volumes were filled with cementation solution (i.e., calcium plus urea) and that at this approximate optimization point, soil properties were improved.
Get full access to this article
View all available purchase options and get full access to this chapter.
REFERENCES
Briaud, J., Bernhardt, M., and Leclair, M. (2011). “The Pocket Erodometer Test: Development and Preliminary Results.” Geotechnical Testing Journal, 35(2), 342–352.
Chek, A., Crowley, R., Ellis, T. N., Durnin, M., and Wingender, B. (2021). “Evaluation of Factors Affecting Erodibility Improvement for MICP-Treated Beach Sand.” Journal of Geotechnical and Geoenvironmental Engineering, 147(3), 04021001.
Cheng, L., and Shahin, M. A. (2016). “Urease active bioslurry: a novel soil improvement approach based on microbially induced carbonate precipitation.” Canadian Geotechnical Journal, 53(9), 1376–1385.
Davies, M., Crowley, R., Ellis, T. N., Hudyma, N., Ammons, P., Matemu, C., Wasman, S., Yahaya, M., Ford, J., and Zimmerman, A. R. (2019). “Microbially Induced Calcite Precipitation Using Surfactants for the Improvement of Organic Soil.” Geo-Congress 2019, 231–240.
ElMouchi, A., Siddiqua, S., Salifu, E., and Wijewickreme, D. (2022). “Muskeg Soil Stabilization Using the Microbially Induced Calcite Precipitation Technique by the Urease Active Bioslurry Approach.” Journal of Geotechnical and Geoenvironmental Engineering, 148(11), 04022092.
Ferris, F., Stehmeier, L., Kantzas, A., and Mourits, F. (1997). “Bacteriogenic Mineral Plugging.” Journal of Canadian Petroleum Technology, 36(9).
Fu, T., Saracho, A. C., and Haigh, S. K. (2023). “Microbially induced carbonate precipitation (MICP) for soil strengthening: A comprehensive review.” Biogeotechnics, 1(1), 100002.
Ghasemi, P., Zamani, A., and Montoya, B. M. “The Effect of Chemical Concentration of the Strength and Erodibility of MICP Treated Sands.” Proc., Geo-Congress 2019, Philadelphia, PA, 241–249.
Gomez, M. G., Anderson, C. M., Graddy, C. M. R., DeJong, J. T., Nelson, D. C., and Ginn, T. R. (2017). “Large-Scale Comparison of Bioaugmentation and Biostimulation Approaches for Biocementation of Sands.” Journal of Geotechnical and Geoenvironmental Engineering, 143(5), 04016124.
Rahman, M. M., Hora, R. N., Ahenkorah, I., Beecham, S., Karim, M. R., and Iqbal, A. (2020). “State-of-the-Art Review of Microbial-Induced Calcite Precipitation and Its Sustainability in Engineering Applications.” Sustainability, 12(15), 6281.
Yang, Y., Chu, J., Xiao, Y., Liu, H., and Cheng, L. (2019). “Seepage control in sand using bioslurry.” Construction and Building Materials, 212, 342–349.
Zhao, Q., Li, L., Li, C., Li, M., Amini, F., and Zhang, H. (2014). “Factors Affecting Improvement of Engineering Properties of MICP-Treated Soil Catalyzed by Bacteria and Urease.” Journal of Materials in Civil Engineering, 26(12), 04014094.
Information & Authors
Information
Published In
History
Published online: Feb 22, 2024
ASCE Technical Topics:
- Cement
- Compressive strength
- Concrete
- Engineering materials (by type)
- Environmental engineering
- Geomechanics
- Geotechnical engineering
- Material mechanics
- Material properties
- Materials engineering
- Pollution
- Soil cement
- Soil compression
- Soil dynamics
- Soil mechanics
- Soil pollution
- Soil properties
- Soil stabilization
- Soil strength
- Soil treatment
- Strength of materials
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.