000			03040nam a22001817a 4500
003			OSt
005			20240830115506.0
008			240830b |||||||| |||| 00| 0 eng d
040			_aMMSU _cULS
100			_aAbero, Noel M...et.al.
245			_aEvaluating the effects of polyethylene to coconut coir fiber reinforced concrete paving block / _cNoel M. Abero, Mark Louie E. Alcoy, Eric Jr. R. Asuncion, Jhofel James R. Quemquem
260			_aCity of Batac : _bMMSU, _c2024.
300			_axvi, 110 leaves : _c28 cm.
500			_aUTHESIS (Bachelor of Science in Civil Engineering)
504			_aBibliography: leaves 64-65
520			_aThis study was conducted to evaluate the impact of Polyethylene (PET) bottles as a partial replacement of fine aggregate on the mechanical properties, durability, and overall sustainability of the coconut fiber reinforced concrete paving blocks (CFRCPB) and visually observe the chemical bonding of the resulting material. The experimental method and Randomized Complete Block Design (RCBD) were used to analyze, organize, and interpret the data collected from the conducted procedure for data gathering on the concrete paving block’s mechanical and physical properties. Statistical concentrations used were average, One-Way Analysis of Variance (ANOVA), and Least Significant Difference (LSD) tests. There were eight concentrations of the Coconut coir fiber reinforced concrete paving block with varying mass percentages of Polyethylene as partial replacement of fine aggregates ranging from 0%, 5%, 6%, 7%, 8%, 9%, and 10% (concentration groups). Material for concrete is a type I Portland cement of ordinary Portland Cement grade 43 conforming to ASTM Specification C150 and with a cement/water ratio of 1:0.38 (cement: water) by ACI mix design. The concrete mix proportion followed the ACI 211 - Standard Practice for Selecting Proportions for Normal, Heavyweight, and Mass Concrete. The computed mix design is 1:1.08:1.44 (cement: fine aggregate: coarse aggregate). The study has demonstrated that incorporating Polyethylene (PET) bottles as a partial replacement of fine aggregates in coconut coir fiber-reinforced concrete paving blocks, particularly at a 5% replacement rate by mass, yields comparable performance to conventional Blocks. In contrast, adding only 3% coconut fiber indicates that coconut fiber alone weakens the concrete. The water absorption characteristics of the fiber-reinforced concrete paving blocks with PET replacement showed a significant deviation from those of conventional blocks. The dimensional tolerance of the paving blocks remained consistent with standards, this indicates that the use of PET does not compromise the overall quality or dimensional stability of the blocks. With that, PET bottles can be effectively utilized as a partial replacement of fine aggregates in fiberreinforced concrete paving blocks, and it was found to be that 5% replacement by mass is the optimum mixture.
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