Effects of coco-coir on the physical and mechanical properties of concrete roof tile/ Ma. Kate Owen G. Cahilig, Kristelle S. Dela Cruz ,chichi F. Hijapon, Jomalyn R. Nilo, Jovelyn R. Tabernilla, And Jhan Mark H. Usop.--

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Cahilig, Ma. Kate Owen G [author]

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TextPublication details: Manila: Technological University of the Philippines, 2025.Description: xii, 116pages: 29cmContent type:

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BTH TH 438 C34 2025

Dissertation note: College of Industrial Technology.-- Bachelor of Engineering Technology major in Construction Technology: Technological University of the Philippines, 2024. Summary: Concrete roof tiles are traditionally made from cement, sand, and water. Over the years, technological advancements have prompted research into the viability of incorporating alternative materials. This study investigates the effects of coco-coir on concrete roof tiles' physical and mechanical properties. Using the ASTM C1492 standard specification for concrete roof tiles, mix designs with coco-coir concentrations of 0.5%, 1%, and 1.5% by volume were created. The coco-coir fibers, each with a length of 5 cm, were incorporated into the concrete mixture. Each mix design was replicated three times to test dimensional tolerance and water absorption and five times to test transverse strength. The concrete roof tiles, measuring 42 cm x 33 cm x 2 cm, were designed to achieve a target density of 2.78 g/cc and cured for 28 days. All tiles were tested for dimensional tolerance, water absorption (physical properties), and transverse strength (mechanical properties) following the ASTM C1492 standard specifications. The results showed that all tests met the ASTM C1492 standards for dimensional tolerance. Mix 3 (1%) achieved the best result, passing with a value of 2.76%. Mix 1 (0.5%) and Mix 2 (1%) for water absorption passed the standard with 14.96% and 15.38%, respectively. All mix designs passed the standard regarding transverse strength with the following results: 2212 MPa for 0.5% coco-coir, 2054 MPa for 1%, and 2030 MPa for 1.5%. The acceptability of the product was evaluated using the TUP Evaluation Instrument for Developed Prototypes. The evaluation reflected an average mean score of 4.27, corresponding to a descriptive rating of "Very Acceptable."

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Item type	Current library	Shelving location	Call number	Copy number	Status	Date due	Barcode
Bachelor's Thesis CIT	TUP Manila Library	Thesis Section-2nd floor	BTH TH 438 C34 2025 (Browse shelf(Opens below))	c.1.	Not for loan		BTH0006557

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Previous	BTH TH 438 B58 2025 Development of fiberboard using dragon tail plant vines as raw material and epoxy resin as binder/	BTH TH 438 B66 2025 Effects of corn cob ash as filler in pet fiber-reinforced concrete floor tiles/	BTH TH 438 C33 2024 Effectiveness of tetra pak as raw material in asphalt roof shingles/	BTH TH 438 C34 2025 Effects of coco-coir on the physical and mechanical properties of concrete roof tile/	BTH TH 438 C35 2025 Calcined mussel shells in lightweight concrete roof tiles with pumice as partial fine aggregates/	BTH TH 438 C36 2022 Effects of powdered engshells as partial cement substitute in flexural strength of cement mortar/	BTH TH 438 C36 2023 Development of alternative composite roof tile using waste plastics and coir fibers/	Next

Bachelor's Thesis

College of Industrial Technology.-- Bachelor of Engineering Technology major in Construction Technology: Technological University of the Philippines, 2024.

Includes bibliographic references and index.

Concrete roof tiles are traditionally made from cement, sand, and water. Over the years,
technological advancements have prompted research into the viability of incorporating
alternative materials. This study investigates the effects of coco-coir on concrete roof tiles'
physical and mechanical properties. Using the ASTM C1492 standard specification for
concrete roof tiles, mix designs with coco-coir concentrations of 0.5%, 1%, and 1.5% by
volume were created. The coco-coir fibers, each with a length of 5 cm, were incorporated
into the concrete mixture. Each mix design was replicated three times to test dimensional
tolerance and water absorption and five times to test transverse strength. The concrete roof
tiles, measuring 42 cm x 33 cm x 2 cm, were designed to achieve a target density of 2.78
g/cc and cured for 28 days. All tiles were tested for dimensional tolerance, water absorption
(physical properties), and transverse strength (mechanical properties) following the ASTM
C1492 standard specifications. The results showed that all tests met the ASTM C1492
standards for dimensional tolerance. Mix 3 (1%) achieved the best result, passing with a
value of 2.76%. Mix 1 (0.5%) and Mix 2 (1%) for water absorption passed the standard
with 14.96% and 15.38%, respectively. All mix designs passed the standard regarding
transverse strength with the following results: 2212 MPa for 0.5% coco-coir, 2054 MPa
for 1%, and 2030 MPa for 1.5%. The acceptability of the product was evaluated using the
TUP Evaluation Instrument for Developed Prototypes. The evaluation reflected an average
mean score of 4.27, corresponding to a descriptive rating of "Very Acceptable."

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