Investigation of Water-Retention Characteristics of Alkali-Activated Clay-Fly Ash Using Small Geotechnical Centrifuge
Publication: Journal of Materials in Civil Engineering
Volume 34, Issue 9
Abstract
In chemically treated soils, producing binding gels changes the soil structure and pore-size distribution, consequently affecting the treated soil-water-retention characteristics. Alkali-activated materials have recently gained popularity to be used as a sustainable chemical binder for soil stabilization. This study was aimed at investing how alkaline activation changes the water-retention characteristics of a treated clay using a small-scale centrifuge at low suction level by drying process in experimental conditions. Alkali-activated clay-fly ash was fabricated by mixing 60% fly ash and 40% clay then the mixture was activated by 10 M NaOH solutions. A small geotechnical centrifuging setup was utilized so as to estimate the variation of water content due to the suction-induced drying process. It was observed that the saturation degree fell in the ranges of 62.9%–78.3% and 71.8%–87.8% for the untreated and treated clay, respectively. The centrifuging results were verified against some distinguished available models. The water-retention characteristics of alkali-activated clay-fly ash were found to be substantially different from that of the untreated clay. Indeed, for the treated clay, the lower air-entry value suction and higher water-retention tendency for higher suction levels are controlled by its larger mean pore diameter and higher specific surface, respectively. Additionally, flocculated fabric produced due to alkaline activation contains small clusters with water entrapment potential needing tremendous suction pressures to be drained.
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Data Availability Statement
All data, models, and codes generated or used during the study appear in the published article.
References
Abdeldjouad, L., A. Asadi, R. J. Ball, H. Nahazanan, and B. B. Huat. 2019. “Application of alkali-activated palm oil fuel ash reinforced with glass fibers in soil stabilization.” Soils Found. 59 (5): 1552–1561. https://doi.org/10.1016/j.sandf.2019.07.008.
Aldaood, A., M. Bouasker, and M. Al-Mukhtar. 2014. “Soil–water characteristic curve of lime treated gypseous soil.” Appl. Clay Sci. 102 (Dec): 128–138. https://doi.org/10.1016/j.clay.2014.09.024.
Alkiki, I. M., M. D. Abdulnafaa, and A. Aldaood. 2021. “Geotechnical and other characteristics of cement-treated low plasticity clay.” Soils Rocks 44 (1): 1–13. https://doi.org/10.28927/SR.2021.053120.
Al-Mahbashi, A. M., M. A. Al-Shamrani, and A. A. B. Moghal. 2020. “Soil–water characteristic curve and one-dimensional deformation characteristics of fiber-reinforced lime-blended expansive soil.” J. Mater. Civ. Eng. 32 (6): 04020125. https://doi.org/10.1061/(ASCE)MT.1943-5533.0003204.
Amadi, A. A., and K. J. Osinubi. 2016. “Soil-water characteristic curves for compacted lateritic soil-bentonite mixtures developed for landfill liner applications.” In Proc., Geo-Chicago, 488–497. Reston, VA: ASCE.
ASTM. 2000a. Standard classification of soils for engineering purposes (Unified Soil Classification System). ASTM D2487. West Conshohocken, PA: ASTM.
ASTM. 2000b. Standard test methods for liquid limit, plastic limit, and plasticity index of soils. ASTM D4318. West Conshohocken, PA: ASTM.
ASTM. 2002. Standard test method for particle-size analysis of soils. ASTM D422. West Conshohocken, PA: ASTM.
ASTM. 2007. Standard test methods for laboratory compaction characteristics of soil using standard effort. ASTM D698. West Conshohocken, PA: ASTM.
ASTM. 2012. Standard specification for coal fly ash and raw or calcined natural pozzolan for use in concrete. ASTM C618. West Conshohocken, PA: ASTM.
ASTM. 2014. Standard test methods for specific gravity of soil solids by water pycnometer. ASTM D854. West Conshohocken, PA: ASTM.
Atkinson, J. H., and R. N. Taylor. 1994. “Moisture migration and stability of iron concentrate cargoes.” In Proc., Int. Conf. Centrifuge 94, 417–422. Rotterdam: Balkema.
Brooks, R. H., and A. T. Corey. 1964. Hydraulic properties of porous media. Fort Collins, CO: Colorado State Univ.
Di Sante, M., E. Fratalocchi, F. Mazzieri, and E. Pasqualini. 2014. “Time of reactions in a lime treated clayey soil and influence of curing conditions on its microstructure and behaviour.” Appl. Clay Sci. 99 (Sep): 100–109. https://doi.org/10.1016/j.clay.2014.06.018.
Fredlund, D. G., and A. Xing. 1994. “Equations for the soil-water characteristic curve.” Can. Geotech. J. 31 (4): 521–532. https://doi.org/10.1139/t94-061.
Fuentes, C., M. Zavala, and H. Saucedo. 2009. “Relationship between the storage coefficient and the soil-water retention curve in subsurface agricultural drainage systems: Water table drawdown.” J. Irrig. Drain. Eng. 135 (3): 279–285. https://doi.org/10.1061/(ASCE)0733-9437(2009)135:3(279).
Khaksar Najafi, E., R. Jamshidi Chenari, and M. Arabani. 2020. “The potential use of clay-fly ash geopolymer in the design of active-passive liners: A review.” Clays Clay Miner. 68 (4): 296–308. https://doi.org/10.1007/s42860-020-00074-w.
Khaksar Najafi, E., R. Jamshidi Chenari, M. Payan, and M. Arabani. 2021. “A sustainable landfill liner material: Clay-fly ash geopolymers.” Bull. Eng. Geol. Environ. 80 (5): 4111–4124. https://doi.org/10.1007/s10064-021-02185-7.
Khanzode, R. M., S. K. Vanapalli, and D. G. Fredlund. 2002. “Measurement of soil-water characteristic curves for fine-grained soils using a small-scale centrifuge.” Can. Geotech. J. 39 (5): 1209–1217. https://doi.org/10.1139/t02-060.
Kosugi, K. I. 1994. “Three-parameter lognormal distribution model for soil water retention.” Water Resour. Res. 30 (4): 891–901. https://doi.org/10.1029/93WR02931.
Mir Mohammad Hosseini, S. M., N. Ganjian, and Y. Pashang Pisheh. 2011. “Estimation of the water retention curve for unsaturated clay.” Can. J. Soil Sci. 91 (4): 543–549. https://doi.org/10.4141/cjss10014.
Mohammadinia, A., A. Arulrajah, S. Horpibulsuk, and P. Tabatabaie Shourijeh. 2019. “Impact of potassium cations on the light chemical stabilization of construction and demolition wastes.” Constr. Build. Mater. 203 (Apr): 69–74. https://doi.org/10.1016/j.conbuildmat.2019.01.083.
Nakajima, H., and A. T. Stadler. 2006. “Centrifuge modeling of one-step outflow tests for unsaturated parameter estimations.” Hydrol. Earth Syst. Sci. 10 (5): 715–729. https://doi.org/10.5194/hess-10-715-2006.
Norambuena-Contreras, J. 2015. “Water retention curve of soil-cement composite material.” Ingeniare. Revista Chilena de Ingeniería 23 (4): 647–654. https://doi.org/10.4067/S0718-33052015000400015.
Pap, M., A. Mahler, and S. G. Nehme. 2018. “Analysis and finite element modelling of water flow in concrete.” Period. Polytech. Civ. Eng. 62 (4): 1052–1059.
Puppala, A. J., K. Punthutaecha, and S. K. Vanapalli. 2006. “Soil-water characteristic curves of stabilized expansive soils.” J. Geotech. Geoenviron. Eng. 132 (6): 736–751. https://doi.org/10.1061/(ASCE)1090-0241(2006)132:6(736).
Qin, H. 2019. “Centrifugal modeling and validation of solute transport within unsaturated zone.” Water 11 (3): 610. https://doi.org/10.3390/w11030610.
Rao, B. H., S. Kumar, and S. Ghosh. 2020. “Establishment of water retention properties of granite saw dust using ultracentrifuge.” In Unsaturated soils: Research & applications, 1571–1578. Boca Raton, FL: CRC Press.
Rao, B. H., and D. N. Singh. 2012. “Establishing soil-water characteristic curve and determining unsaturated hydraulic conductivity of kaolin by ultracentrifugation and electrical measurements.” Can. Geotech. J. 49 (12): 1369–1377. https://doi.org/10.1139/cgj-2011-0341.
Seki, K. 2007. “SWRC fit—A nonlinear fitting program with a water retention curve for soils having unimodal and bimodal pore structure.” Hydrol. Earth Syst. Sci. Discuss. 4 (1): 407–437.
Singh, D. N., and A. K. Gupta. 2000. “Modelling hydraulic conductivity in a small centrifuge.” Can. Geotech. J. 37 (5): 1150–1155. https://doi.org/10.1139/t00-027.
Singh, D. N., and S. J. Kuriyan. 2002. “Estimation of hydraulic conductivity of unsaturated soils using a geotechnical centrifuge.” Can. Geotech. J. 39 (3): 684–694. https://doi.org/10.1139/t02-013.
Sivapullaiah, P. V., and M. A. A. Baig. 2011. “Gypsum treated fly ash as a liner for waste disposal facilities.” Waste Manage. 31 (2): 359–369. https://doi.org/10.1016/j.wasman.2010.07.017.
Song, Y. S., W. K. Hwang, S. J. Jung, and T. H. Kim. 2012. “A comparative study of suction stress between sand and silt under unsaturated conditions.” Eng. Geol. 124 (Jan): 90–97. https://doi.org/10.1016/j.enggeo.2011.10.006.
Theriault, J. A., and R. J. Mitchell. 1997. “Use of a modelling centrifuge for testing clay liner compatibility with permeants.” Can. Geotech. J. 34 (1): 71–77. https://doi.org/10.1139/t96-102.
Tinjum, J. M., C. H. Benson, and L. R. Blotz. 1997. “Soil-water characteristic curves for compacted clays.” J. Geotech. Geoenviron. Eng. 123 (11): 1060–1069. https://doi.org/10.1061/(ASCE)1090-0241(1997)123:11(1060).
Vanapalli, S. K., D. G. Fredlund, D. E. Pufahl, and A. W. Clifton. 1996. “Model for the prediction of shear strength with respect to soil suction.” Can. Geotech. J. 33 (3): 379–392. https://doi.org/10.1139/t96-060.
van Genuchten, M. T. 1980. “A closed-form equation for predicting the hydraulic conductivity of unsaturated soils.” Soil Sci. Soc. Am. J. 44 (5): 892–898. https://doi.org/10.2136/sssaj1980.03615995004400050002x.
van Jaarsveld, J. G. S., J. S. J. Van Deventer, and A. Schwartzman. 1999. “The potential use of geopolymeric materials to immobilize toxic metals: Part II. Material and leaching characteristics.” Miner. Eng. 12: 75–91. https://doi.org/10.1016/S0892-6875(98)00121-6.
Wang, Y., Y. J. Cui, A. M. Tang, C. S. Tang, and N. Benahmed. 2015. “Effects of aggregate size on water retention capacity and microstructure of lime-treated silty soil.” Géotech. Lett. 5 (4): 269–274. https://doi.org/10.1680/jgele.15.00127.
Zhai, Q., H. Rahardjo, and A. Satyanaga. 2019. “Estimation of air permeability function from soil-water characteristic curve.” Can. Geotech. J. 56 (4): 505–513. https://doi.org/10.1139/cgj-2017-0579.
Zhang, W. L., B. A. McCabe, Y. H. Chen, and T. J. Forkan. 2018. “Unsaturated behaviour of a stabilized marine sediment: A comparison of cement and GGBS binders.” Eng. Geol. 246 (Nov): 57–68. https://doi.org/10.1016/j.enggeo.2018.09.020.
Zhang, X., M. Mavroulidou, and M. J. Gunn. 2017. “A study of the water retention curve of lime-treated London clay.” Acta Geotech. 12 (1): 23–45. https://doi.org/10.1007/s11440-015-0432-6.
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Received: Jul 26, 2021
Accepted: Dec 2, 2021
Published online: Jun 28, 2022
Published in print: Sep 1, 2022
Discussion open until: Nov 28, 2022
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