Abstract
Sulfate ions attack cast-in-situ piles of bridges and roads and hence deteriorate their bearing capacities. A theoretical model is proposed for evaluating the bearing capacity of a cast-in-situ pile under sulfate corrosive condition. Evolution rules of the side resistance, the end resistance, the bearing capacity, the strength of pile body, as well as the compressive rigidity and the flexural rigidity are studied systematically. The effects of pile diameter and length on the bearing capacities are analyzed and compared in detail. Studies show that the side resistance of pile is influenced by both radial compressive stress redistribution and concrete deterioration caused by accumulating of sulfate corrosion products. And it is also influenced by length and diameter of the pile. The end resistance and the effective area decrease with the increase of sulfate corrosion depth. The strength of pile body decreases rapidly during sulfate corrosion process. Both the compressive and flexural rigidities show remarkable drops with the increase of corrosion depth. The results show that increasing the pile diameter can enhance the pile’s resistance against corrosion and slow the decline in its bearing capacity.
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References
Al-Amoudi, O.S.B.: Attack on plain and blended cements exposed to aggressive sulfate environments. Cement Concr. Compos. 24(3), 305–316 (2002)
Tixier, R., Mobasher, B.: Modeling of damage in cement-based materials subjected to external sulfate attack. I: formulation. J. Mater. Civ. Eng. 15(4), 305–313 (2003)
Al-Amoudi, O.S.B.: Sulfate attack and reinforcement corrosion in plain and blended cements exposed to sulfate environments. Build. Environ. 33(1), 53–61 (1998)
Tixier, R., Mobasher, B.: Modeling of damage in cement-based materials subjected to external sulfate attack. II: comparison with experiments. J. Mater. Civ. Eng. 15(4), 314–322 (2003)
Oliveira, I., Cavalaro, S.H.P., Aguado, A.: New unreacted-core model to predict pyrrhotite oxidation in concrete dams. J. Mater. Civ. Eng. 25(3), 372–381 (2012)
Chinchón-Payá, S., Aguado, A., Chinchón, S.: A comparative investigation of the degradation of pyrite and pyrrhotite under simulated laboratory conditions. Eng. Geol. 127, 75–80 (2012)
Sun, C., Chen, J., Zhu, J., et al.: A new diffusion model of sulfate ions in concrete. Constr. Build. Mater. 39, 39–45 (2013)
Idiart, A.E., López, C.M., Carol, I.: Chemo-mechanical analysis of concrete cracking and degradation due to external sulfate attack: a meso-scale model. Cement Concr. Compos. 33(3), 411–423 (2011)
Bary, B.: Simplified coupled chemo-mechanical modeling of cement pastes behavior subjected to combined leaching and external sulfate attack. Int. J. Numer. Anal. Methods Geomech. 32(14), 1791–1816 (2008)
Santhanam, M., Cohen, M.D., Olek, J.: Mechanism of sulfate attack: a fresh look: part 1: summary of experimental results. Cem. Concr. Res. 32(6), 915–921 (2002)
Skaropoulou, A., Kakali, G., Tsivilis, S.: Thaumasite form of sulfate attack in limestone cement concrete: the effect of cement composition, sand type and exposure temperature. Constr. Build. Mater. 36(36), 527–533 (2012)
Ma, H., Li, Z.: Multi-aggregate approach for modeling interfacial transition zone in concrete. ACI Mater. J. 111(2), 189–199 (2014)
Santhanam, M., Cohen, M.D., Olek, J.: Sulfate attack research-whither now? Cem. Concr. Res. 31(6), 845–851 (2001)
Taylor, H.F.W., Famy, C., Scrivener, K.L.: Delayed ettringite formation. Cem. Concr. Res. 31(5), 683–693 (2001)
Gao, R., Li, X., Xu, Q., et al.: Concrete deterioration under alternate action of chemical attack environments. In: International Conference on Multimedia Technology (ICMT), pp. 1008–1012. IEEE (2011)
Whittaker, M., Black, L.: Current knowledge of external sulfate attack. Adv. Cem. Res. 27(9), 532–545 (2015)
Campos, A., López, C.M., Aguado, A.: Diffusion-reaction model for the internal sulfate attack in concrete. Constr. Build. Mater. 102, 531–540 (2016)
Du, J., Liang, Y., Zhang, F.: Mechanism and Performance Degradation of Underground Structure Attacked by Sulfate. China Railway Press, Beijing (2011). (in Chinese)
JGJ 94-2008: Technical Code Building Pile Foundations (2008). (in Chinese)
Tumidajski, P.J., Chan, G.W., Philipose, K.E.: An effective diffusivity for sulfate transport into concrete. Cem. Concr. Res. 25(6), 1159–1163 (1995)
Acknowledgments
This research was supported financially by the National Natural Science Foundation of China (No. 41772290) and the Project of Shaanxi Province (No. 20170522).
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Zhao, G., Li, J. (2018). Study on Degradation in Axial Bearing Capacity of a Cast-in-Situ Pile Caused by Sulfate Attack in Saline Area. In: Farid, A., Chen, H. (eds) Proceedings of GeoShanghai 2018 International Conference: Geoenvironment and Geohazard. GSIC 2018. Springer, Singapore. https://doi.org/10.1007/978-981-13-0128-5_29
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DOI: https://doi.org/10.1007/978-981-13-0128-5_29
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