Abstract
Understanding the expansion of Alkali-Silica Reaction (ASR) under restraint and its impact on the mechanical properties of concrete is crucial for evaluating and predicting the performances of concrete structures damaged by ASR. Nowadays, ASR damage has even been observed in prestressed concrete structures, which are considered highly durable. Evaluating their performance, particularly in terms of structural safety, necessitates consideration of both active and passive restraint influences. This study aims to investigate the effects of prestress on the expansive behavior of concrete due to ASR and to discuss this behavior under both active and passive restraint conditions. The focus of this research is post-tensioned prestressed concrete at low-stress levels. Experimental results indicate that concrete expansion along the restraint direction is dependent on the restraint rate, expressed by both prestress and steel bar. Moreover, expansion perpendicular to the prestress direction is greater than stress-free expansion. These findings result in nearly identical volumetric expansion in different restraint conditions. Furthermore, the study delves into the degradation of the modulus of elasticity under restraint and considerations in the assessment of real structures.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Mohammed, T.U., Hamada, H., Yamaji, T.: Relation between strain on surface and strain over embedded steel bars in ASR affected concrete members. J. Adv. Concr. Technol. 1(1), 76–88 (2003)
Kagimoto, H., Yasuda, Y., Kawamura, M.: ASR expansion, expansive pressure and cracking in concrete prisms under various degrees of restraint. Cem. Concr. Res. 59, 1–15 (2014)
Berra, M., Faggiani, G., Mangialardi, T., Paolini, A.E.: Influences of stress restraint on the expansive behavior of concrete affected by alkali-silica reaction. Cem. Concr. Res. 40(9), 1403–1409 (2010)
Hamura, Y., Takaya, S., Ueda, N., Hiroi, Y., Yamamoto, T.: Basic study on raman spectral property of ASR reactive aggregate and products. J Soc. Mater. Sci. Japan 65(11), 793–799 (2016). (In Japanese)
Japan Society of Civil Engineers: Standard Specification for Concrete Structures 2017 “Design”, (2017). (In Japanese)
Multon, S., Toutlemonde, F.: Effect of applied stress on alkali-silica reaction-induced expansions. Cem. Concr. Res. 36(5), 912–920 (2006)
Swamy, R.N., Al-Asali, M.M.: Engineering properties of concrete affected by alkali-silica reaction. ACI Mater. J. 85(5), 367–374 (1988)
The Institution of Structural Engineers: Structural effects of Alkali-Silica reaction, technical guidance on the appraisal of existing structures. SETO Ltd., London (1992)
Zahedi, A., Trottier, C., Sanchez, L.F.M., Noël, M.: Microscopic assessment of ASR-affected concrete under confinement conditions. Cem. Concr. Res. 145, 106456 (2021)
Acknowledgment
This work was supported by JSPS KAKENHI (20K04653 and 23H01493). I would like to express my gratitude to Mr. Hiromi IWAMOTO, formerly a student at Kansai University, for his experimental assistance.
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2024 The Author(s), under exclusive license to Springer Nature Switzerland AG
About this paper
Cite this paper
Ueda, N. (2024). Experiment on ASR Expansion Under Both Active and Passive Restraints by Post-Tensioned Prestressing. In: Sanchez, L.F., Trottier, C. (eds) Proceedings of the 17th International Conference on Alkali-Aggregate Reaction in Concrete. ICAAR 2024. RILEM Bookseries, vol 50. Springer, Cham. https://doi.org/10.1007/978-3-031-59349-9_26
Download citation
DOI: https://doi.org/10.1007/978-3-031-59349-9_26
Published:
Publisher Name: Springer, Cham
Print ISBN: 978-3-031-59348-2
Online ISBN: 978-3-031-59349-9
eBook Packages: EngineeringEngineering (R0)