Experimental Investigation on the Applicability of Microwave-Modified Red-Bed Soft Rock Subgrade Filler
Publication: Journal of Materials in Civil Engineering
Volume 35, Issue 12
Abstract
Red beds (RBs) are widely distributed in all continents of the world. With the rapid development of road and railway construction, the construction of roads and railways in RB areas is increasing. However, when RB is the filler, it will expose three aspects of serious deficiencies in compaction, mechanical bearing capacity, and water stability, which will cause fatal harm to the subgrade. Therefore, RB has to be abandoned and cannot be used as a subgrade filler. In this paper, different microwave irradiation temperatures (DMITs) from room temperature of 25°C to 700°C were used to reveal the enhancing mechanism of RB in three aspects based on the analysis results of microscopic composition and structure. The microscopic composition and structure show that RB can be divided into a low-temperature section (25°C–400°C) and a high-temperature section (500°C–700°C) under the microwave condition. The low-temperature section has some improvement in the engineering performance of RB, but the influence is limited. The engineering performance of RB is improved completely in the high-temperature section. Specifically, the coarse size of RB increases with the rise in microwave temperature, which is beneficial for improving fine size. The compaction property of RB is not largely affected by the water content and can still meet the most stringent subgrade filler requirements, even under saturated conditions or 0. The California bearing ratio (CBR) value can maintain more than 20% under the ultimate working condition, far higher than the code requirements. The increase of internal friction angle and cohesion can enhance the stability of the cut slope, which is conducive to construction in remote mountainous areas. The water resistance of RB is positively correlated with the microwave irradiation temperature, especially at 700°C; RB experiences secondary hardening after encountering water, the mechanical strength increases, and the softening coefficient reaches 107.44%. The research shows that after microwave high-temperature stabilization, the engineering characteristics of the RB are thoroughly strengthened, and it becomes a high-quality subgrade filler to eliminate the three diseases of RB subgrade completely. Compared with the traditional method of adding stabilizers, microwave in situ RB stabilization reduces the site construction’s complexity, saves a lot of stabilizer use and transportation costs, and can effectively reduce carbon emissions. This study provides a positive perspective on the in situ application of the RB soft rock subgrade. It could be a starting point for understanding the microwave-based stabilization of soft rock soils subgrade filler in situ.
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Data Availability Statement
Some or all data that support the findings of this study are available from the corresponding author upon reasonable request.
Acknowledgments
This research was supported by the National Natural Science Foundation of China (52078442 and 52178357) and Sichuan Science and Technology Program (2020JDRC0091 and 2021YFSY0006).
References
Al-Rawas, A. A., A. W. Hago, and H. Al-Sarmi. 2005. “Effect of lime, cement and Sarooj (artificial pozzolan) on the swelling potential of an expansive soil from Oman.” Build. Environ. 40 (5): 681–687. https://doi.org/10.1016/j.buildenv.2004.08.028.
Andrew, R. M. 2019. “Global emissions from cement production.” Earth Syst. Sci. Data 11 (4): 1675–1710. https://doi.org/10.5194/essd-11-1675-2019.
Aras, A. 2004. “The change of phase composition in kaolinite- and illite-rich clay-based ceramic bodies.” Appl. Clay Sci. 24 (3–4): 257–269. https://doi.org/10.1016/j.clay.2003.08.012.
Arulrajah, A., J. Piratheepan, M. M. Disfani, and M. W. Bo. 2013. “Geotechnical and geoenvironmental properties of recycled construction and demolition materials in pavement subbase applications.” J. Mater. Civ. Eng. 25 (8): 1077–1088. https://doi.org/10.1061/(ASCE)MT.1943-5533.0000652.
Barbieri, D. M., B. Lou, R. J. Dyke, H. Chen, F. Wang, B. Dongmo-Engeland, J. S. Tingle, and I. Hoff. 2022. “Stabilization of coarse aggregates with traditional and nontraditional additives.” J. Mater. Civ. Eng. 34 (9): 04022207. https://doi.org/10.1061/(ASCE)MT.1943-5533.0004406.
Beruto, D., and A. W. Searcy. 1974. “Use of the Langmuir method for kinetic studies of decomposition reactions: Calcite ().” J. Chem. Soc., Faraday Trans. 70 (1): 2145–2153. https://doi.org/10.1039/f19747002145.
Bonavetti, V. L., C. C. Castellano, and E. F. Irassar. 2022. “Designing general use cement with calcined illite and limestone filler.” Appl. Clay Sci. 230 (Mar): 106700. https://doi.org/10.1016/j.clay.2022.106700.
Booske, J. H., R. F. Cooper, and I. Dobson. 1992. “Mechanisms for nonthermal effects on ionic mobility during microwave processing of crystalline solids.” J. Mater. Res. 7 (2): 495–501. https://doi.org/10.1557/JMR.1992.0495.
Chen, C., and H. Wu. 2018. “Lightweight bricks manufactured from ground soil, textile sludge, and coal ash.” Environ. Technol. 39 (11): 1359–1367. https://doi.org/10.1080/09593330.2017.1329353.
Chen, R., G. Cai, X. Dong, D. Mi, A. J. Puppala, and W. Duan. 2019. “Mechanical properties and micro-mechanism of loess roadbed filling using by-product red mud as a partial alternative.” Constr. Build. Mater. 216 (Jun): 188–201. https://doi.org/10.1016/j.conbuildmat.2019.04.254.
Chien, Y.-C. 2012. “Field study of in situ remediation of petroleum hydrocarbon contaminated soil on site using microwave energy.” J. Hazard. Mater. 199–200 (May): 457–461. https://doi.org/10.1016/j.jhazmat.2011.11.012.
Chinese Standard. 2002. Code for construction of railway subgrade. TB10202-2002 J161-2002. Beijing: China Communications Press.
Chinese Standard. 2015. Specifications for design of highway subgrades. JTG D30-2015. Beijing: China Communications Press.
Chinese Standard. 2020. Test methods of soils for highway engineering. JTG 3430-2020. Beijing: China Communications Press.
Criado, J. M., and A. Ortega. 1992. “A study of the influence of particle size on the thermal decomposition of by means of constant rate thermal analysis.” Thermochim. Acta 195 (Aug): 163–167. https://doi.org/10.1016/0040-6031(92)80059-6.
Dai, Z., J. Guo, F. Yu, Z. Zhou, J. Li, and S. Chen. 2021. “Long-term uplift of high-speed railway subgrade caused by swelling effect of red-bed mudstone: Case study in Southwest China.” Bull. Eng. Geol. Environ. 80 (6): 4855–4869. https://doi.org/10.1007/s10064-021-02220-7.
Dong, Z., Y. Jiang, B. Xue, M. Han, G. Ren, Y. Liu, M. Ling, and F. Li. 2018. “Effects of ball milling and ultrasonic treatment on the UV shielding performance of illite micro flakes.” Colloids Surf., A 556 (Feb): 316–325. https://doi.org/10.1016/j.colsurfa.2018.08.040.
Doostmohammadi, R., T. Mutschler, and C. Osan. 2011. “Modeling the complex and long term swelling behavior of argillaceous rocks.” Min. Sci. Technol. 21 (5): 655–659. https://doi.org/10.1016/j.mstc.2011.10.007.
Eren, M., S. Kadir, S. Kapur, J. Huggett, and C. Zucca. 2015. “Colour origin of Tortonian red mudstones within the Mersin area, southern Turkey.” Sediment. Geol. 318 (May): 10–19. https://doi.org/10.1016/j.sedgeo.2014.12.003.
Falciglia, P. P., G. Mancuso, P. Scandura, and F. G. A. Vagliasindi. 2015. “Effective decontamination of low dielectric hydrocarbon-polluted soils using microwave heating: Experimental investigation and modelling for in situ treatment.” Sep. Purif. Technol. 156 (May): 480–488. https://doi.org/10.1016/j.seppur.2015.10.038.
Falciglia, P. P., P. Scandura, and F. G. A. Vagliasindi. 2018. “Modelling and preliminary technical, energy and economic considerations for full-scale in situ remediation of low-dielectric hydrocarbon-polluted soils by microwave heating (MWH) technique.” J. Soils Sediments 18 (6): 2350–2360. https://doi.org/10.1007/s11368-017-1682-8.
Fan, S. 2014. “Construction of highway clay subgrade with sand and low liquid limit.” Chin. J. Shanxi Archit. 40 (27): 150–151. https://doi.org/10.13719/j.cnki.cn14-1279/tu.2014.27.086.
Feng, R., L. Wu, D. Liu, Y. Wang, and B. Peng. 2020. “Lime- and cement-treated sandy lean clay for highway subgrade in China.” J. Mater. Civ. Eng. 32 (1): 04019335. https://doi.org/10.1061/(ASCE)MT.1943-5533.0002984.
Geng, J., and Q. Sun. 2018. “Effects of high temperature treatment on physical-thermal properties of clay.” Thermochim. Acta 666 (Aug): 148–155. https://doi.org/10.1016/j.tca.2018.06.018.
Guidobaldi, G., C. Cambi, M. Cecconi, D. Deneele, M. Paris, G. Russo, and E. Vitale. 2017. “Multi-scale analysis of the mechanical improvement induced by lime addition on a pyroclastic soil.” Eng. Geol. 221 (Jun): 193–201. https://doi.org/10.1016/j.enggeo.2017.03.012.
Hong, W., J. Meng, C. Li, S. Yan, X. He, and G. Fu. 2020. “Effects of temperature on structural properties of hydrated montmorillonite: Experimental study and molecular dynamics simulation.” Adv. Civ. Eng. 2020 (Dec): 8885215. https://doi.org/10.1155/2020/8885215.
Hov, S., P. Paniagua, C. Sætre, H. Rueslåtten, I. Størdal, M. Mengede, and C. Mevik. 2022. “Lime-cement stabilisation of Trondheim clays and its impact on carbon dioxide emissions.” Soils Found. 62 (3): 101162. https://doi.org/10.1016/j.sandf.2022.101162.
Hoy, M., S. Horpibulsuk, A. Arulrajah, and A. Mohajerani. 2018. “Strength and microstructural study of recycled asphalt pavement: Slag geopolymer as a pavement base material.” J. Mater. Civ. Eng. 30 (8): 04018177. https://doi.org/10.1061/(ASCE)MT.1943-5533.0002393.
Huang, K., Z. Dai, C. Yan, and S. Chen. 2023. “Numerical study on the swelling and failure of red-layer mudstone subgrade caused by humidity diffusion.” Comput. Geotech. 156 (Apr): 105272. https://doi.org/10.1016/j.compgeo.2023.105272.
Húlan, T., I. Štubňa, A. Shishkin, J. Ozolins, Š. Csáki, P. Bačík, and J. Fridrichová. 2019. “Development of Young’s modulus of natural illitic clay during the heating and cooling stages of firing.” Clay Miner. 54 (3): 229–233. https://doi.org/10.1180/clm.2019.33.
Húlan, T., A. Trník, I. Štubňa, P. Bačík, T. Kaljuvee, and L. Vozár. 2015. “Development of Young’s modulus of illitic clay during heating up to 1100°C.” Mater. Sci. 21 (3): 429–434. https://doi.org/10.5755/j01.ms.21.3.7152.
Jiang, Z., and L. Liu. 2011. “A pretreatment method for grain size analysis of red mudstones.” Sediment. Geol. 241 (1–4): 13–21. https://doi.org/10.1016/j.sedgeo.2011.09.008.
Kappe, C. O., and D. Dallinger. 2009. “Controlled microwave heating in modern organic synthesis: Highlights from the 2004–2008 literature.” Mol. Divers 13 (2): 71–193. https://doi.org/10.1007/s11030-009-9138-8.
Karunadasa, K. S. P., C. H. Manoratne, H. M. T. G. A. Pitawala, and R. M. G. Rajapakse. 2019. “Thermal decomposition of calcium carbonate (calcite polymorph) as examined by in situ high-temperature X-ray powder diffraction.” J. Phys. Chem. Solids 134 (Aug): 21–28. https://doi.org/10.1016/j.jpcs.2019.05.023.
Keppert, M., E. Vejmelková, P. Bezdička, M. Doleželová, M. Čáchová, L. Scheinherrová, J. Pokorný, M. Vyšvařil, P. Rovnaníková, and R. Černý. 2018. “Red-clay ceramic powders as geopolymer precursors: Consideration of amorphous portion and CaO content.” Appl. Clay Sci. 161 (Feb): 82–89. https://doi.org/10.1016/j.clay.2018.04.019.
Kumar, R., S. Sahoo, E. Joanni, and R. K. Singh. 2022. “A review on the current research on microwave processing techniques applied to graphene-based supercapacitor electrodes: An emerging approach beyond conventional heating.” J. Energy Chem. 74 (May): 252–282. https://doi.org/10.1016/j.jechem.2022.06.051.
Li, J., J. Zhang, and B. Wang. 2022. “Study on cement improving construction technology of expansive soil base.” [In Chinese.] Chin. J. Shijiazhuang Railway Vocational Tech. College 21 (4): 27–30.
Li, X., and Q. Jiang. 2008. “Compacting deformation engineering characteristics of weathered soft rock mixture in subgrade.” J. China Univ. Geosci. 19 (3): 298–306. https://doi.org/10.1016/S1002-0705(08)60048-5.
Liu, Z., X. He, and C. Zhou. 2019. “Influence mechanism of different flow patterns on the softening of red-bed soft rock.” J. Mar. Sci. Eng. 7 (5): 155. https://doi.org/10.3390/jmse7050155.
Lu, Y., S. Liu, Y. Zhang, Z. Li, and L. Xu. 2020a. “Freeze-thaw performance of a cement-treated expansive soil.” Cold Reg. Sci. Technol. 170 (Aug): 102926. https://doi.org/10.1016/j.coldregions.2019.102926.
Lu, Z., Y. Zhao, S. Xian, and H. Yao. 2020b. “Experimental study on dynamic resilient modulus of lime-treated expansive soil.” Adv. Mater. Sci. Eng. 2020 (Jan): 3272681. https://doi.org/10.1155/2020/3272681.
Ma, G., H. Li, B. Yang, H. Zhang, and W. Li. 2020. “Investigation on the deformation behavior of open-graded unbound granular materials for permeable pavement.” Constr. Build. Mater. 260 (Jul): 119800. https://doi.org/10.1016/j.conbuildmat.2020.119800.
Ma, Q., Z. Cao, and P. Yuan. 2018. “Experimental research on microstructure and physical-mechanical properties of expansive soil stabilized with fly ash, sand, and basalt fiber.” Adv. Mater. Sci. Eng. 2018 (Oct): 9125127. https://doi.org/10.1155/2018/9125127.
Melinte, M. C., and J. Dan. 2005. “Campanian–Maastrichtian marine red beds in Romania: Biostratigraphic and genetic significance.” Cretaceous Res. 26 (1): 49–56. https://doi.org/10.1016/j.cretres.2004.11.002.
Mishra, R. R., and A. K. Sharma. 2016. “Microwave–material interaction phenomena: Heating mechanisms, challenges and opportunities in material processing.” Composites, Part A 81 (Feb): 78–97. https://doi.org/10.1016/j.compositesa.2015.10.035.
Pan, Z., and H. Peng. 2015. “Comparative study on the distribution and geomorphological development of red beds in China and abroad.” Earth Sci. 35 (12): 1575–1584. https://doi.org/10.13249/j.cnki.sgs.2015.12.011.
Pan, Z., H. Peng, F. Ren, and E. John. 2016. “A study of the development of red bed landforms in Zion National Park, the United States.” [In Chinese.] Earth Sci. 37 (1): 116–126.
Polidori, E. 2007. “Relationship between the Atterberg limits and clay content.” Soils Found. 47 (5): 887–896. https://doi.org/10.3208/sandf.47.887.
Qi, J., W. Sui, Y. Liu, and D. Zhang. 2015. “Slaking process and mechanisms under static wetting and drying cycles slaking tests in a red strata mudstone.” Geotech. Geol. Eng. 33 (4): 959–972. https://doi.org/10.1007/s10706-015-9878-4.
Saksala, T. 2016. “Modelling of dynamic rock fracture process with a rate-dependent combined continuum damage-embedded discontinuity model incorporating microstructure.” Rock Mech. Rock Eng. 49 (10): 3947–3962. https://doi.org/10.1007/s00603-016-0994-0.
Salvoni, M., and P. M. Dight. 2016. “Rock damage assessment in a large unstable slope from microseismic monitoring—MMG Century mine (Queensland, Australia) case study.” Eng. Geol. 210 (Jul): 45–56. https://doi.org/10.1016/j.enggeo.2016.06.002.
Santos, T., M. A. Valente, J. Monteiro, J. Sousa, and L. C. Costa. 2011. “Electromagnetic and thermal history during microwave heating.” Appl. Therm. Eng. 31 (16): 3255–3261. https://doi.org/10.1016/j.applthermaleng.2011.06.006.
Shao, X., N. Zhang, D. Ma, and H. Ding. 2019. “Evolution of typical minerals in coal at high temperature.” [In Chinese.] Clean Coal Technol. 25 (6): 111–117. https://doi.org/10.13226/j.issn.1006-6772.18112101.
Shen, P., H. Tang, L. Huang, and D. Wang. 2019. “Experimental study of slaking properties of red-bed mudstones from the Three Gorges Reservoir area.” Mar. Georesour. Geotechnol. 37 (8): 891–901. https://doi.org/10.1080/1064119X.2018.1504839.
Shibakova, V. S. 1975. “On the possibility of using microwave energy for soil stabilization.” Bull. Int. Assoc. Eng. Geol. 12 (1): 89–91. https://doi.org/10.1007/BF02635436.
Song, Z., D. Zhang, Y. Mao, Y. Mu, K. Zhang, and Q. Zhang. 2020. “Behavior of lime-stabilized red bed soil after cyclic wetting-drying in triaxial tests and SEM analysis.” Adv. Mater. Sci. Eng. 2020 (Apr): 4230519. https://doi.org/10.1155/2020/4230519.
Sun, Q., W. Zhang, and H. Qian. 2016. “Effects of high temperature thermal treatment on the physical properties of clay.” Environ. Earth Sci. 75 (7): 610. https://doi.org/10.1007/s12665-016-5402-2.
Sun, Z., B. Peng, and Y. Hu. 2021. “The effect of mineral composition in the compound soil of soft rock and sand on special surface area and cation exchange capacity.” IOP Conf. Ser.: Earth Environ. Sci. 714 (2): 022082. https://doi.org/10.1088/1755-1315/714/2/022082.
Taheri-Shakib, J., A. Shekarifard, and H. Naderi. 2018. “The study of influence of electromagnetic waves on the wettability alteration of oil-wet calcite: Imprints in surface properties.” J. Pet. Sci. Eng. 168 (Jul): 1–7. https://doi.org/10.1016/j.petrol.2018.04.062.
Tucker, M. E. 2009. Sedimentary petrology: An introduction to the origin of sedimentary rocks, 228–251. New York: Wiley.
Vukićević, M., M. Marjanović, V. Pujević, and S. Jocković. 2019. “The alternatives to traditional materials for subsoil stabilization and embankments.” Materials 12 (18): 3018. https://doi.org/10.3390/ma12183018.
Wang, G., H. Wang, and N. Zhang. 2017. “In situ high temperature X-ray diffraction study of illite.” Appl. Clay Sci. 146 (Aug): 254–263. https://doi.org/10.1016/j.clay.2017.06.006.
Widjaja, B., and A. F. Nirwanto. 2019. “Effect of various temperatures to liquid limit, plastic limit, and plasticity index of clays.” IOP Conf. Ser.: Mater. Sci. Eng. 508 (Jan): 012099. https://doi.org/10.1088/1757-899X/508/1/012099.
Xu, B. J., K. Chen, and C. J. Huang. 2013. “Microwave heating in iron ore magnetization roasting the current status.” Appl. Mech. Mater. 303–306 (Jun): 2611–2615. https://doi.org/10.4028/www.scientific.net/AMM.303-306.2611.
Yao, H., S. Jia, W. Gan, Z. Zhang, and K. Lu. 2016. “Properties of crushed red-bed soft rock mixtures used in subgrade.” Adv. Mater. Sci. Eng. 2016 (Dec): 9624974. https://doi.org/10.1155/2016/9624974.
Yao, H., J. Lu, H. Bian, and Z. Zhang. 2022. “Influence of microwave heating on the swelling properties of expansive soil in Hefei.” Case Stud. Therm. Eng. 39 (Aug): 102466. https://doi.org/10.1016/j.csite.2022.102466.
Zeng, X., Y. Xiao, X. Ji, and G. Wang. 2021. “Mineral identification based on deep learning that combines image and Mohs hardness.” Minerals 11 (5): 506. https://doi.org/10.3390/min11050506.
Zha, F., K. Huang, B. Kang, X. Sun, J. Su, Y. Li, and Z. Lu. 2022. “Deterioration characteristic and constitutive model of red-bed argillaceous siltstone subjected to drying-wetting cycles.” Lithosphere 2022 (1): 8786210. https://doi.org/10.2113/2022/8786210.
Zhang, C., and G. Jiang. 2020. “Full-scale model testing of the dynamic response of lime-stabilized weathered red mudstone subgrade under railway excitation.” Soil Dyn. Earthquake Eng. 130 (Aug): 105999. https://doi.org/10.1016/j.soildyn.2019.105999.
Zhang, C., G. Jiang, L. Su, and W. Liu. 2018. “Dynamic behaviour of weathered red mudstone in Sichuan (China) under triaxial cyclic loading.” J. Mountain Sci. 15 (8): 1789–1806. https://doi.org/10.1007/s11629-017-4756-6.
Zhang, K., and C. N. Frederick. 2017. “Experimental investigation on compaction and Atterberg limits characteristics of soils: Aspects of clay content using artificial mixtures.” KSCE J. Civ. Eng. 21 (2): 546–553. https://doi.org/10.1007/s12205-017-1580-z.
Zhang, R., H. Luo, Z. Liu, and R. Nie. 2022. “Study on anti-uplift effect of micro-steel-pipe pile on red-bedded soft rock subgrade.” Sustainability 14 (19): 11923. https://doi.org/10.3390/su141911923.
Zhang, S., Q. Xu, and Z. Hu. 2016. “Effects of rainwater softening on red mudstone of deep-seated landslide, Southwest China.” Eng. Geol. 204 (May): 1–13. https://doi.org/10.1016/j.enggeo.2016.01.013.
Zhang, Z., Y. Zhu, T. Yang, L. Li, H. Zhu, and H. Wang. 2017. “Conversion of local industrial wastes into greener cement through geopolymer technology: A case study of high-magnesium nickel slag.” J. Cleaner Prod. 141 (Feb): 463–471. https://doi.org/10.1016/j.jclepro.2016.09.147.
Zhou, C., X. Yang, Y. Liang, Z. Du, Z. Liu, W. Huang, and W. Ming. 2019. “Classification of red-bed rock mass structures and slope failure modes in South China.” Geosciences 9 (6): 273. https://doi.org/10.3390/geosciences9060273.
Zhou, Z., S. Chen, Y. Wang, and Z. Dai. 2021. “Crack evolution characteristics and cracking mechanism of red beds in central sichuan during seepage and swelling.” Geofluids 2021 (Apr): 9981046. https://doi.org/10.1155/2021/9981046.
Zhu, Y., H. Yu, Y. Yang, and Z. Jia. 2013. “Laboratory experimental study on properties of red-bed mudstone improved soil.” [In Chinese.] Chin. J. Rock Mech. Eng. 32 (2): 425–432.
Zong, Y., R. Xiong, Z. Wang, B. Zhang, Y. Tian, Y. Sheng, C. Xie, H. Wang, and X. Yan. 2022. “Effect of morphology characteristics on the polishing resistance of coarse aggregates on asphalt pavement.” Constr. Build. Mater. 341 (May): 127755. https://doi.org/10.1016/j.conbuildmat.2022.127755.
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Journal of Materials in Civil Engineering
Volume 35 • Issue 12 • December 2023
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© 2023 American Society of Civil Engineers.
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Received: Aug 19, 2022
Accepted: Apr 25, 2023
Published online: Sep 26, 2023
Published in print: Dec 1, 2023
Discussion open until: Feb 26, 2024
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