Evaluation of Strength Properties of Fly ash and Metakaolin Based Composite Fiber (Glass and Polypropylene) Reinforced High-Performance Concrete

  IJETT-book-cover  International Journal of Engineering Trends and Technology (IJETT)          
© 2021 by IJETT Journal
Volume-69 Issue-4
Year of Publication : 2021
Authors : Sachin Patil, Dr.H.M. Somasekharaiah, Dr. H. Sudarsana Rao
DOI :  10.14445/22315381/IJETT-V69I4P227


MLA Style: Sachin Patil, Dr.H.M. Somasekharaiah, Dr. H. Sudarsana Rao  "Evaluation of Strength Properties of Fly ash and Metakaolin Based Composite Fiber (Glass and Polypropylene) Reinforced High-Performance Concrete" International Journal of Engineering Trends and Technology 69.4(2021):188-203. 

APA Style:Sachin Patil, Dr.H.M. Somasekharaiah, Dr. H. Sudarsana Rao. Evaluation of Strength Properties of Fly ash and Metakaolin Based Composite Fiber (Glass and Polypropylene) Reinforced High-Performance Concrete  International Journal of Engineering Trends and Technology, 69(4),188-203.

Pozzolanic materials Fly ash (FA) and Metakaolin (MK), finer than cement, are emerging in the production of concrete proven to individually enhance the concrete properties. This investigation utilizes the combined effect of FA and MK as replacement of cement partially. Glass fibers (GF) and Polypropylene fibers (PPF) are used as an addition to producing Composite-Fiber Reinforced High-Performance Concrete (CFRHPC), and it was proposed to investigate its mechanical properties. The water to binder ratios (W/B) of 0.275, 0.300, 0.325, and 0.350, with an aggregate to binder ratio (A/B) of 1.75, were adopted. FA and MK were replaced in the range from 0% to 15% each, GF were added in volume percentages from 0% to 1%, and PPF was kept constant at 0.25%. The combined effect of FA and MK at 5% each as replacement of cement and composite fiber dosage of GF=1% and PPF=0.25% for W/B of 0.275 was found to be an optimum combination to obtain maximum strength properties for CFRHPC. A relationship in the form of mathematical models between cube compressive strength with cylindrical compressive strength, split tensile strength, and flexural strength of FA and MK-based CFRHPC were also derived from the experimental results of this investigation.

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Composite fibers, Glass fiber, High-Performance Concrete, Polypropylene fiber, Fly ash, Metakaolin, Mechanical properties.