Study of concretes reinforced by hybrid fibers
No Thumbnail Available
Date
2025-07-07
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
University of 20 August 1955 – Skikda
Abstract
Industrial waste is one of the most significant environmental challenges facing the world today,
contributing substantially to environmental pollution. To mitigate these negative impacts,
recycling industrial waste and utilizing it in various fields, such as civil engineering, has become
an essential option to achieve environmental sustainability. These wastes can be employed as
cost-effective alternative materials to enhance the properties of concrete and reduce its overall
cost. Recycled industrial fibers play a dual role in improving concrete performance while
minimizing the environmental impact of industrial waste. These materials also contribute to
lowering the cost of concrete, making them a viable option for use in complex engineering
structures. In this study, High-Flow Sand Concrete (HFSC) was selected due to its lower cost
compared to conventional concrete, its fine internal structure free from coarse aggregates, and
its distinctive physical properties. Three types of industrial fibers were added, each with specific
characteristics: stainless steel shavings (316L-SSF) as macro fibers, bronze shavings (UE7-
BF) as micro fibers, and wasted polyester fibers (WPF) as macro synthetic fibers. After
evaluating the initial performance of each fiber type individually, they were combined into
hybrid systems (dual and triple fibers) to analyze their effects on the physical, mechanical,
chemical, and physio-chemical properties of the concrete. Fiber proportions at 0.25% , 0.50%,
1.00%, 1.50%, and 2.00% were used to ensure diverse results and determine the optimal ratios.
Microscopic analysis (SEM) confirmed that the fibers improved the matrix cohesion of the
concrete and reduced pore size, which contributed to enhancing its overall performance. These
findings indicate that industrial fibers, whether mono or hybrid, represent a sustainable and
efficient solution for improving the quality of High-Flow Sand Concrete, with broad potential
applications in complex engineering construction projects
Description
Keywords
concretes reinforced, hybrid fibers