Share:


Use of Recycled Polypropylene Grains as Partial Replacement of Fine Aggregate in Reinforced Concrete Beams

    Joseph Olawale Akinyele Affiliation
    ; Ramhadhan Wanjala Salim Affiliation
    ; Gbolahan Oyeti Affiliation

Abstract

Waste product from polyethylene materials are non-biodegradable and they form the bulk of the materials been used today. This paper looked into how this waste product was recycled in to polypropylene grains of sizes <4.5 mm and used to partially replace fine aggregate in concrete. Sieve analysis was carried out on the recycled polypropylene waste. Reinforced concrete beams (600 mm x 150 mm x 200 mm) and concrete cubes (150 mm x 150 mm x 150 mm) were made from the mixture of the recycled material at different percentages of 0%, 4%, 8%, 12% and 16%. The beams were subjected to bending moment test, while the cubes were subjected to compressive strength test. Results revealed that 43.71% of polypropylene grains passed through the 4.75 mm sieve. The compressive strength of the 4% mixture was 16.28 N/mm2 while the control was 19.07 N/mm2. The bending moment test showed that the control mix has the highest value of 14.70 kNm, while the 12% and 16% has the lowest value of 8.40 kNm each. Deflections in the polypropylene mixes were generally higher than the control. The work concluded that recycled polypropylene grains can be used as partially replacement of fine aggregate in concrete at below 4% replacement.

Keyword : polypropylene grains, polyethylene, bending moment, recycling, fine aggregate, deflection, sieve analysis

How to Cite
Akinyele, J. O., Salim, R. W., & Oyeti, G. (2015). Use of Recycled Polypropylene Grains as Partial Replacement of Fine Aggregate in Reinforced Concrete Beams. Engineering Structures and Technologies, 6(4), 184-190. https://doi.org/10.3846/2029882X.2015.1070697
Published in Issue
Oct 16, 2015
Abstract Views
329
PDF Downloads
223
Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.