Strength Assessment Of Fiber-matrix Composite Enhanced With Dual Mineral Admixtures

Abstract

Cement The Heavy Reliance On Portland Cement In Infrastructure Development Poses Severe Environmental Threats Due To Massive Carbon Dioxide Emissions, Alongside Escalating Economic Costs. To Address These Challenges, This Study Evaluates The Strength Assessment Of Fiber-Matrix Composite Enhanced With Dual Mineral Admixtures, Utilizing Nano-Silica And Metakaolin As Eco-friendly, Partial Cement Replacements In M35 Grade Structural Concrete. To Counter The Inherent Brittleness Of Conventional Concrete, Nylon Fibers The First Commercialized Synthetic Polymer Are Integrated As Micro-reinforcement. An Extensive Laboratory Investigation Was Conducted To Analyze The Individual And Combined Effects Of These Materials. Cement Was Substituted With Metakaolin At Replacement Levels Of 10%, 20%, 30%, And 40% By Weight, Alongside A Constant Optimized Addition Of Nano-Silica To Refine The Binder Matrix Through Accelerated Pozzolanic Activity. Concurrently, Synthetic Nylon Fibers Were Introduced Into The Matrix At Volume Fractions Of 0%, 1%, 1.5%, And 2% To Study Their Crack-bridging Mechanics. The Experimental Program Specifically Focuses On Evaluating The Composite's Mechanical Performance, Measuring Compressive Strength, Tensile Behavior, And Impact Resistance. The Findings Aim To Establish An Optimal Binary Mix Design That Minimizes Cement Consumption, Successfully Repurposes Industrial Pozzolanic Byproducts, And Yields A Fiber-reinforced Composite With Enhanced Structural Integrity And Impact Energy Absorption.

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