Properties of Self-Compacting Concrete Containing Synthetic Fibers

DOI

10.2991/978-94-6463-672-7_18How to use a DOI?

Keywords

Self-Compacting Concrete; Synthetic Fiber; Fresh Properties; Compressive Strength; Splitting Tensile Strength

Abstract

Self-Compacting Concrete (SCC) is valued in civil construction for its capability to flow and compact solely due to gravity without external vibration, which enhances ease of construction, surface finish, and reduces labor costs. Concrete exhibits excellent compressive strength and relatively weak tensile strength and addition of synthetic fibers to SCC may introduce several benefits, such as improved tensile strength, ductility, and crack resistance. This research investigates the impact of 0.5%, 1%, and 1.5% synthetic fiber on the fresh and mechanical characteristics of SCC with 16 mm downgraded stone aggregate. The findings reveal that increasing fiber content reduces flowability, decreases slump flow, increases V-funnel flow time, and lowers the L-box blocking ratio. Despite these reductions, the fresh properties of the SCC remained within acceptable limits as per EFNARC standards. Moreover, the incorporation of synthetic fibers decreases the compressive strength in each age of testing but a notable increase in splitting tensile strength. Therefore, the fibers show the ability to enhance the splitting tensile capacity of SCC. Furthermore, the SCC specimens without fibers exhibit catastrophic failures and break into small pieces due to combined failure whereas SCC specimens containing synthetic fibers failed smoothly by producing minor cracks. Therefore, synthetic fibers aid in resisting the propagation of cracks and making self-compacting concrete more ductile by developing the linking effect between cracks. The study concludes that although synthetic fibers can adversely affect the compressive strength and modulus of elasticity, they significantly improve the splitting tensile strength of SCC and the resistance to crack propagation.

Copyright

© 2025 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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TY  - CONF
AU  - Rain Man Raja
AU  - Md. Rakib Hossain
AU  - Md. Rasel Miah
AU  - Banna Das
PY  - 2025
DA  - 2025/04/04
TI  - Properties of Self-Compacting Concrete Containing Synthetic Fibers
BT  - Proceedings of the 1st International Conference on Recent Innovation in Civil Engineering and Architecture for Sustainable Development (IICASD-2024)
PB  - Atlantis Press
SP  - 215
EP  - 227
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6463-672-7_18
DO  - 10.2991/978-94-6463-672-7_18
ID  - Raja2025
ER  -