Evaluating the effects of polyethylene to coconut coir fiber reinforced concrete paving block / Noel M. Abero, Mark Louie E. Alcoy, Eric Jr. R. Asuncion, Jhofel James R. Quemquem
Material type:
TextPublication details: City of Batac : MMSU, 2024Description: xvi, 110 leaves : 28 cmSummary: This 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.
| Item type | Home library | Shelving location | Call number | Status | Notes | Date due | Barcode |
|---|---|---|---|---|---|---|---|
| Thesis/Dissertation | MMSU Main Library | Theses and Dissertation Section | Available | Room Use Only | UTHESIS-6874 |
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UTHESIS (Bachelor of Science in Civil Engineering)
Bibliography: leaves 64-65
This 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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