The Effect of PET Plastic Waste on Crack Pattern of Fly Ash-Rice Husk Ash-Based Geopolymer Concrete

Abstract

Construction  materials  are  becoming  more  and  more  necessary  as  the  times  change. When  it  comes  to  building  infrastructure,  concrete  is crucial.  However,  concrete  has recently  come  under  fire  from  environmental  conservationists  because  of  its  carbon dioxide (CO2) emissions during the cement-making process, which have been connected to the ozone layer's weakening as a result of global warming. Furthermore, the quantity of organic and industrial waste keeps rising annually. The primary focus in the transition to Indonesia Gold 2045 is the lack of effort in the process of recycling garbage into useful commodities. The purpose of the study is to examine the formation of fractures upon compression of geopolymer concrete samples composed of fly ash and rice husk ash. In this investigation, we included 5% rice husk ash in fly ash-based geopolymer concrete, changed the composition by adding PET plastic fibre at 0%, 0.25%, 0.5%, and 0.75%, and then looked for a crack pattern brought on by compressive fatigue. The cylindrical test specimens, measuring 100 mm by 200 mm, were examined seven and twenty-eight days  following  moist  curing.  According  to  the  study's  findings,  columnar  fracture patterns predominated for PET fluctuations of 0.5% and 0.75%, whereas shear and/or cone crack patterns prevailed for PET variations of 0% and 0.25%.