In modern construction practice, despite the high compressive strength of cement concrete, its low tensile strength and brittle behavior lead to cracking problems in structural elements. One of the most effective approaches to overcoming these shortcomings is the use of dispersed fiber reinforcement. This paper presents a systematic review of the physical and mechanical properties, advantages, and limitations of the main fiber types used in fiber-reinforced concrete, including steel, glass, polypropylene, and basalt fibers, based on an analysis of the relevant scientific literature. Special emphasis is placed on polyvinyl alcohol (PVA) fibers, with particular attention to their chemical origin, degree of hydrolysis, interaction mechanisms with the cementitious matrix, and crack-bridging behavior. Based on the micromechanical approach developed by Victor C. Li, the role of PVA fibers in the development of high-ductility engineered cementitious composites (ECC) is substantiated. Furthermore, a comparative analysis highlights the advantages of PVA fibers over other fiber types, and the prospects for applying PVA fiber-reinforced cementitious composites in transportation, hydraulic, and industrial construction under the climatic and service conditions of Uzbekistan are discussed. The research findings indicate that PVA fibers represent a promising reinforcing component for the development of high-performance and durable concrete composites.
| Mualliflar | Mukhammadiyev , Nematjon, Mukhammadrasulov, Xasanjon |
|---|---|
| Jurnal | Techscience.uz - техника фанлари долзарб масалалри |
| Nashr sanasi | 2025-12-27 |
| Jild | 3 |
| Son | 12 |
| Betlar | 188-198 |
| Til | O‘zbek |
| DOI | 10.47390/ts-v3i12y2025n22 |
DOI: 10.47390/ts-v3i12y2025n22 · Maqolaning asl sahifasi
Dispersed fiber-reinforced concrete; fiber-reinforced concrete; polyvinyl alcohol (PVA) fibers; micromechanics; crack-bridging behavior; engineered cementitious composites (ECC); construction materials., Dispers armaturalangan beton; fibrabeton; polivinil spirt (PVA) tolalari; mikromexanika; yoriqlarni ko‘priklash; muhandislik sementli kompozitlar (ECC); qurilish materiallari.
This study aims to investigate the effectiveness of using fiberglass composite materials in the construction of brick walls to increase their seismic resistance
The article discusses the application of information modeling technology at the stage of operation of bridge structures. It is shown that the introduction of Building information modeling (BIM) makes it possible to…
This paper addresses the challenge of transitioning computer vision systems from the prototyping stage to real-world production environments. While many existing studies focus primarily on improving model accuracy…
In this article, the performance of a four-story reinforced concrete frame building with two different types of foundations under seismic loads was analyzed. In both cases, the total loads acting on the building were…
This article is dedicated to studying the complex structure of the cardiovascular system based on fractal geometry and mathematical modeling. The study analyzed the self-similar fractal properties of vascular networks…
This article considers the issues of improving safety and automation of technical control in the operation of gas-cylinder vehicles. A methodology based on RFID technology has been developed to enhance identification…
Federated Learning (FL) has recently attracted increasing attention due to its ability to enable knowledge sharing while preserving user data, protecting privacy, improving learning efficiency, and reducing…
This article analyzes the modern requirements for the maintenance system of electric vehicles, technical indicators, safety standards and diagnostic principles formed on the basis of international and national…
This article classifies vibration diagnostics for rotary machinery into time-domain, frequency-domain, and model-based methods. It evaluates each approach's analytical capabilities for detecting faults such as imbalance…
The article presents the results of research on the chrome-free tanning process for ostrich skins. Ostrich leather is comparable in physical and chemical properties to chrome-tanned leather and even surpasses it in some…
Techscience.uz - техника фанлари долзарб масалалри — barcha maqolalar