Feasibility Analysis of Concrete Based on Shell Aggregate Fiber Additives for Structures
Department of Building Materials and Construction Technology, Faculty of Civil Engineering, Belarusian National Technical University, Minsk 220013,
| Abstract: | The shortage of natural aggregates in the construction industry has prompted the search for alternative materials that can replace or partially replace traditional aggregates in concrete. Shellfish, which are widely available and have certain strength properties, are one of the potential candidates for this purpose. However, the use of shells as aggregates also brings some challenges, such as the reduction of compressive strength and the increase of dry shrinkage of concrete. To overcome these drawbacks, fibers are added to shell aggregate concrete to enhance its mechanical performance and durability. This paper investigates the feasibility and effectiveness of using different types of fibers, such as reed fiber, nanofiber, and coir, in shell aggregate concrete, and the influence of shell work and the influence on the hydration reaction of concrete is comprehensively analyzed on the working performance of shell aggregate concrete. The experimental results show that the incorporation of fibers can improve the workability, compressive strength, flexural strength, splitting tensile strength, and shrinkage of shell aggregate concrete. The optimal fiber content and aspect ratio are also determined for each type of fiber. The paper concludes that shell aggregate fiber concrete is a viable and sustainable material for structural applications, and provides some recommendations for its design and use. |
| Keywords: | Renewable Aggregates; Green Building Materials; Non-metallic Fibers |
| DOI: | 10.57237/j.mater.2024.01.002 |
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Received: 19 December 2023
Accepted: 1 February 2024
Published Online: 4 February 2024
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