Abstract: PET bottles are major source of plastic waste which may cause different problems related to its disposal, dumping and recycling. PET being a mechanically strong and durable material, provides an opportunity for concrete technologists and researchers to study the use of PET as fibers in concrete, Thus the present experimental investigation was designed to study the effect of replacing Polypropylene fibers with PET fibers in concrete, by hybridization of the two fibers. In this investigation the performance of concrete with PET-Polypropylene fibers is evaluated. The performance of concrete is evaluated in terms of its workability and strength. Workability is measured with Slump cone test and Compaction factor test while the strength of different concrete mixes is measured as Compressive strength, Split tensile strength and Flexural strength etc. Six different types of mixes are prepared using different volume proportions of PET & Polypropylene in concrete. The addition of PET fibers reduced the workability of concrete but this reduction was smaller as compared to the addition of polypropylene fibers. Thus results for compressive, split, and flexural strength shows an improvement for mixes with more proportion of PET fibers & lesser polypropylene fibers. The cost analysis of concrete mixes with reference to the strength gain has shown that the PET-PP hybridization with 0.75% PET and 0.25% PP was the optimum mix proportions of these two fibers considering the cost/strength and overall strength gain among the hybrid fiber reinforced concrete mixes.
Keywords: Workability, Compressive strength, Split tensile strength, flexural strength, Cost effectiveness.
Title: Performance Evaluation of Pet-Polyproplene Hybrid Fiber Reinforced Concrete In Terms of Work ability, Strength and Cost Effectiveness
Author: Gurpreet Singh, Dr. Sanjay Goel
International Journal of Civil and Structural Engineering Research
ISSN 2348-7607 (Online)
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