Abrasion Resistance of Concrete Reinforced with Waste Polypropylene Face Masks : Undergraduate Thesis

Stvaranje nove vrste otpada uzrokovanog pandemijom Covid-19 otvara problem zbrinjavanja istog. U ovom radu je medicinski otpad korišten kao dodatak betonu, u svrhu ojačanja. Jednokratne zaštitne maske za lice dodane su svježoj mješavini betona. Prednji dio maske betonu je dodan u količini 0.5% volumena betona, a gumice u količini 0.25% volumena betona. Uzorci betonskih mješavina ispitani su u svježem i u očvrsnulom stanju. U svježem stanju je ispitana obradivost betona, a nakon 28 dana, u čvrstom stanju je ispitana otpornost na habanje betona. Dobiveni rezultati uspoređeni su s rezultatima s prijašnjih ispitivanja.The creation of a new type of waste caused by the Covid-19 pandemic opens up the problem of its disposal. In this paper, medical waste was used as an additive to concrete, for the purpose of strengthening. Disposable face masks were added to the fresh concrete mix. The front part of the mask was added to the concrete in the amount of 0.5% of the concrete volume, and the rubber bands in the amount of 0.25% of the concrete volume. Samples of concrete mixtures were tested in fresh and hardened state. The workability of the concrete was tested in its fresh state, and after 28 days, the wear resistance of the concrete was tested in its solid state. The obtained results were compared with the results from previous tests