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Development of Recycled Polypropylene Plastic Fibres to Reinforce Concrete

Rationale Research Objectives Thesis Organisation References Literature Review Mechanical Reprocessing of Polypropylene Waste Degradation and Crystallisation Behaviours of Reprocessing PP Waste Degradation Behaviour Crystallisation Behaviour and Mechanical Properties Melt Blending Filler Reinforcement Mechanochemistry Use of Macro Plastic Fibres in Concrete Preparation and Properties of Macro Plastic Fibres Macro Plastic Fibre Reinforced Concrete Fresh Concrete Properties Slump Hardened Concrete Properties Compressive Strength Splitting Tensile Strength Flexural Strength Post-cracking Performance Drying Shrinkage Pull-Out Behaviour of Macro Plastic Fibres Degradation of Plastic Fibres in Concrete Cost and Environmental Benefits of Using Macro Plastic Fibres Applications of Macro Plastic Fibre Reinforced Concrete Characterisation of Toughness and Post-cracking Behaviour of Fibre Reinforced Concrete Four-Point Flexural Tests on the Unnotched Beams ASTM C1018 ASTM C1399 ASTM C1609 Three-Point Flexural Tests on the Notched Beams Flexural Tests on the Round Panel Life Cycle Assessment Conclusions References Production and Characterisation of the Physical and Mechanical Properties of Recycled PP Fibers Fibre Production and Measurement Raw Materials for Fibre Production Preparation of PP Fibres Tensile Strength of PP Fibres Fourier Transform Infrared Spectroscopy Differential Scanning Calorimeter Wide-Angle X-ray Scattering Mechanical Properties of PP Fibres Molecular Orientation by FTIR Crystal Structure and Crystallinity by DSC Crystallinity by WAXS Conclusions References Comparative Evaluation of 100% Recycled and Virgin PP Fibre Reinforced Concretes Alkali Resistance of the 100% Recycled and Virgin PP Fibres Concrete Mix Design and Experimental Program Concrete Mix Design Compressive Strength of Concrete Residual Flexural Tensile Strength with CMOD Round Determinate Panel Test Mechanical Properties of the 100% Recycled and Virgin PP Fibres Compressive Strength of Concrete Residual Flexural Tensile Strength with CMOD Flexural Strength and Toughness from RDPT Conclusions References Post-cracking Performance of Concrete Reinforced by Various Newly Developed Recycled PP Fibres Compressive Strength of Concrete Residual Flexural Tensile Strength with CMOD Flexural Strength and Toughness from Round Determinate Panel Tests Conclusions References Environmental Benefits of Using Recycled PP Fibre Through a Life Cycle Assessment Life Cycle Assessment Process Functional Unit and Scenario Formulations System Boundaries Steel Reinforcing Mesh Virgin PP Fibre Industrial Recycled PP Fibre Domestic Recycled PP Fibre Life Cycle Inventory Life Cycle Impact Assessment Uncertainty Analysis Results Discussion Conclusions References Applications of 100% Recycled PP Fibre Reinforced Concretes Concrete Footpaths Precast Concrete Drainage Pits Materials and Specimens Pit Test Setup Results and Discussion Conclusions References Conclusions Recommendations

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