Impact of Synthetic Fibers on the Performance of High-Volume Fly Ash Self-Compacting Concrete

International Journal of Civil Engineering

© 2024 by SSRG - IJCE Journal

Volume 11 Issue 10

Year of Publication : 2024

Authors : Mihir B Baldania, Mulesh K Pathak, Pratik B Somaiya, Bhargav H Jaiswal, Sahid A Patel, Dhaval P Advani

10.14445/23488352/IJCE-V11I10P106

How to Cite?

Mihir B Baldania, Mulesh K Pathak, Pratik B Somaiya, Bhargav H Jaiswal, Sahid A Patel, Dhaval P Advani, "Impact of Synthetic Fibers on the Performance of High-Volume Fly Ash Self-Compacting Concrete," SSRG International Journal of Civil Engineering, vol. 11,  no. 10, pp. 55-68, 2024. Crossref, https://doi.org/10.14445/23488352/IJCE-V11I10P106

Abstract:

This research investigates the impact of synthetic fibers on the mechanical and rheological properties of High-Volume Fly Ash Self-Compacting Concrete (HVFASCC). Class F fly ash was utilized to replace 50% and 55% of the cement, while Polyester (PO) and Polypropylene (PP) fibers were incorporated at dosages of 0.1% and 0.15% by weight. A comprehensive assessment of the properties of fresh concrete was carried out by employing the slump flow, V-funnel, L-box, and U-box tests to gauge workability and flowability. At 7, 28, and 56 days, the mechanical characteristics, including compressive, flexural, and tensile strength, were evaluated. Because of increased internal friction, introducing polypropylene fibers reduced flowability while improving workability. Polyester fibers, on the other hand, greatly improved mechanical properties. Optimal strength values were attained using a 50% fly ash blend and 0.15% polyester fiber, yielding enhanced compressive, flexural, and tensile strengths. This study explains how high-volume fly ash and synthetic fibers work together in self-compacting concrete, offering a way to balance fly ash and fiber dosage for better results. The findings also highlight the potential for reducing cement use in environmentally friendly building practices without sacrificing structural soundness.

Keywords:

Self-compacting concrete, High volume fly ash, Polyester fiber, Polypropylene fibers.

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