00000ctm a22000003i 4500 UP-99796217612880225 Buklod 20230215105418.0 m |o d | ta 181011s xx d r |||| u| (iLib)UPD-00396664046 DENGII rda eng LG 993.5 2018 E63 R63 Rodil, Raphael Roby T. author. Assessment of the performance of fly-ash based geopolymer concrete with plastic waste as fiber reinforcement Raphael Roby T. Rodil, Olivia Jiana L. Salcedo ; Christian R. Orozco, adviser. Quezon City College of Engineering, University of the Philippines Diliman 2018. xvi, 100 leaves color illustrations 28 cm text rdacontent unmediated rdamedia volume rdacarrier Thesis (Bachelor of Science in Civil Engineering)--University of the Philippines Diliman May 2018. Fly ash is now widely used in construction as a replacement for cement. With the use of an activator, geopolymer concrete (GPC) can be produced. In this study, class F fly ash mixed with sand, and the activators sodium hydroxide (NaOH) and calcium hydroxide Ca(OH)2 to produce mortars. Their compressive strengths were compared to determine which activator exhibited a good binding characteristic when mixed with fly ash. The results showed that Ca(OH)2 is a better binder than NaOH. Ca(OH)2 was used as an activator and combined with fly ash to fully replace cement for the GPC. The mixes for GPC were designed with different concentrations of Ca(OH)2 - 8 M, 10 M, and 12 M, and tested under compressive and split tensile strength. The results showed that the optimal molarity is 10 M. Using this molarity, polyethylene terephthalate (PET) flakes were introduced to the GPC and varied at 1%, 2%, 3%, 4%, 5%, and 6% by weight of cement. The GPC with 2% plastic content gave the highest strengths when subjected to both compressive and split tensile strengths. Based from the test results, the GPC samples were classified as low strength material. A cost analysis was conducted to determine the economic feasibility of GPC in the country. It was calculated that the cost of the GPC with plastic reinforcement is lower than the low strength material with cement. Fly ash. Concrete Additives. Salcedo, Olivia Jiana L. author. Orozco, Christian R. adviser. Thesis FI UP UPD DENG-II LG 993.5 2018 E63 R63 Thesis