V3I1P40

Advancements in Non-Destructive Testing Methods for Civil Engineering Applications

Vijay Kumar Pandit^1*, Surendra Bahadur Shahi²

Abstract

This study investigated the effects of incorporating plastic waste fibers on the fresh and hardened properties of self-compacting concrete (SCC). SCC is a highly flowable concrete that can fill formworks and encapsulate reinforcements without mechanical vibration. The addition of fibers to SCC can enhance its mechanical properties and durability. In this study, plastic waste fibers were added to SCC mixtures at varying percentages, and the resulting fresh and hardened properties were evaluated using standard test methods. The fresh properties assessed included slump flow, T50cm time, J-ring, V-funnel, and L-box tests, whereas the hardened properties included compressive strength, tensile strength, and flexural strength at 28 days. The results showed that the incorporation of plastic waste fibers significantly influenced the fresh properties of SCC, with increasing fiber content leading to reduced flowability and passing ability. However, the addition of fibers also led to improvements in the hardened properties of SCC, particularly in terms of tensile and flexural strengths. The optimal fiber content for achieving a balance between the fresh and hardened properties was found to be approximately 1.0% by volume. The findings of this study demonstrate the potential of utilizing plastic waste fibers as a sustainable and effective reinforcement material in SCC, contributing to the development of eco-friendly and high-performance concrete for civil engineering applications.

Keywords:

Non-Destructive Testing, Plastic Waste Fibers, Fresh Properties, Hardened Properties, Tensile Strength, Flexural Strength.