Effect of using plastic waste on mechanical properties of fly ash based geopolymer concrete

Abstract

Cement concrete since the early ages has been the most promising building material, but the environmental issue of releasing CO2 into the atmosphere during cement production has prompted researchers to look for an alternative in the form of 100 % cementless concrete made out of local waste material that has been enhanced with alumina and silica. This research study was conducted for making the geopolymer with the locally available fly ash with a partial replacement of fine aggregate with plastic waste at 0 %, 5 %, 10 % and 20 %. The microscopic studies of available fly ash were conducted to make a proper geopolymer mix design and tested for the compressive strength of geopolymer concrete at 7 days, 14 days and 28 days. The study was conducted at room temperature of 27 °C along with the elevated temperature of 60 °C, 70 °C, and 80 °C.