Performance Evaluation of SIFCON Incorporating Waste Materials and Hybrid Fibers: A Study on Durability and Mechanical Properties
Received: 29 January 2025 | Revised: 5 March 2025 and 28 March 2025 | Accepted: 9 April 2025 | Online: 2 August 2025
Corresponding author: Mohammed Muayad Hassan
Abstract
Slurry Infiltrated Fiber Concrete (SIFCON) is a specialized type of High-Performance Fiber-Reinforced Concrete (HPFRC). Durability is an essential factor regarding concrete performance, particularly in severe conditions or structures designed for extended service, and thus in SIFCON design. This study examines the impact of incorporating glass waste into SIFCON, as well as the influence of hybrid fiber reinforcement using Micro Steel Fibers (MSF), Basalt Fibers (BF), and Polypropylene Fibers (PF) on the sustainability and performance of the resulting material. The SIFCON slurry was designed with a cement-to-Fine Aggregate (FA) ratio of 1:1 and a water-to-cement ratio of 0.33. The compressive strength of the slurry was evaluated by replacing cement with Glass Powder (GP) at proportions of 10%, 15%, 20%, and 25%, and FA with Crushed Glass (CG) at proportions of 10%, 20%, 30%, and 40%. The optimal results were achieved with 15% GP and 10% CG. SIFCON durability was assessed through tests measuring void ratio, and permeability, alongside an examination of its mechanical properties via splitting tensile strength and modulus of elasticity tests. A BF ratio of 1% to 4% of the fraction volume was used in all hybrid fiber mixes utilizing MSF and PF in three different ratios (1.5%:1.5%,1%:2% and 2%:1%). The SS4 mix (1% BF, 2% MSF, and 1% PF) showed an optimal increase in SIFCON void ratio, splitting tensile strength, and modulus of elasticity compared to the mixes SS2 (1% BF, 1.5% MSF, and 1.5% PF) and SS3 (1% BF, 1% MSF, and 2% PF).
Keywords:
sustainable SIFCON, glass waste, crushed glass, hybrid fiber durabilityDownloads
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