International Journal of Engineering Research and Reviews
ISSN 2348-697X (Online) Vol. 10, Issue 3, pp: (1-5), Month: July - September 2022, Available at: www.researchpublish.com
EFFECTS OF ADDING PET FLAKES TO CONCRETE BLOCKS Pavani Aketi1, Govardhan Rao Pavar2 JNTUHCEH Jawaharlal Nehru Institute of Technological University, Hyderabad, India DOI: https://doi.org/10.5281/zenodo.6973591
Published Date: 08-August-2022
Abstract: Plastic, being one of the common material in our daily activities and we couldn't imagine a day without it. plastic contributes to major pollution as it involves many components like PELD,PELLD,PEHD,PP, ,PET and many other .major plastic pollution is due to single use plastic which is either trashed or crushed . Single use plastic involves many kinds of polymers out of which PET (Polyethylene terephthalate) is major with an average of 6.8% of total plastic pollution. This study involves determining the mechanical properties of concrete blocks added with PET flakes. It was observed that an optimum cracking and crushing strength of 7.2Mpa and 7.78 Mpa respectively at a proportion of 1:4(plastic: cement). An optimum flexural strength of 2.1 MPa was observed at a proportion of 1:2 ( plastic: cement) and it was observed that the dry density of pet flakes added concrete blocks decreases as the weight of the plastic added to the block increases . Keywords: Cracking strength, Crushing strength, Flexural strength, PELD, PET.
I. INTRODUCTION The major challenges of present generation is Plastic pollution as the used plastic is either trashed or scraped .As plastic is composed of organic polymers like nylon,PVC etc, it takes hundreds of years to decompose and in addition to its time to decompose the growing demand has increased its pollution and thus affecting natural environment. An average daily estimate of 8 million pieces of plastic pollution flows into oceans and by 2050 the plastic weight would be more compared to fishes weight. Plastic pollution consists of different types of polymers like PELD, PELLD, PEHD, PP,PVC, PS, PET, OTHER. PELD and PPLLD contributes to 17.5% of plastic pollution. PEHD is 12.1% of plastic pollution. PP comprises 18.9% of total plastic pollution. Other polymers like PET, PS, PVC are nearly 50% of total plastic pollution. Common usage plastic involves packed water bottles, soft drink bottles, food trays, roasting bags, medicine jars, food packaging, daily accessories packaging etc., In India around 43% of plastic is due to packaging and or of single use in nature. The effective ways of reducing this plastic pollution involves three R’s i.e., Reduce, Reuse and Recycle. Civil engineering structures are composed of many components like columns, beams, slabs ,walls and many others. Columns are designed for compressive and bending actions. Beams are designed for flexural and shear actions. Slabs are designed for flexural actions similar to the beams with wider area. A wall are designed as slabs in case of laterally resisted structures, but does not participate in any structural action of small buildings. These are generally used for partitions and safety purposes. As walls do not take part in transferring the loads and contribute to major volume in a structure. Reusing of PET plastic in these walls does not affect the structure but in case of laterally resisted structures the flexural strength of concrete blocks with PET flakes has to be found out to determine the optimum proportions of plastic cement ratio for maximum flexural action.
II. MATERIALS AND METHODOLOGY The main ingredient of concrete is cement which binds sets, hardens and adheres to other materials. Cement with fine aggregate is used as mortar for masonry. Cement with sand, gravel and water is termed as concrete. Cement used for preparation of these concrete blocks is of 53 grade ordinary Portland cement confirming to IS:12269-1987.
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