MARC details
| 000 -LEADER |
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| fixed length control field |
02733nam a22003377a 4500 |
| 003 - CONTROL NUMBER IDENTIFIER |
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| control field |
OSt |
| 005 - DATE AND TIME OF LATEST TRANSACTION |
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| control field |
20250625095015.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION |
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| fixed length control field |
250625b |||||||| |||| 00| 0 eng d |
| 040 ## - CATALOGING SOURCE |
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| Original cataloging agency |
TUPM |
| Language of cataloging |
English |
| Transcribing agency |
TUPM |
| Modifying agency |
TUPM |
| Description conventions |
rda |
| 050 ## - LIBRARY OF CONGRESS CALL NUMBER |
|---|
| Classification number |
BTH TA 145 |
| Item number |
D45 2024 |
| 100 ## - MAIN ENTRY--PERSONAL NAME |
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| Personal name |
Del Rosario, Chanel J. |
| Relator term |
author |
| 245 ## - TITLE STATEMENT |
|---|
| Title |
Property characterization of paving blocks using calcined coffee husk ash as partial replacement to cement / |
| Statement of responsibility, etc. |
Chanel J. Del Rosario, Karla A. Flores, Isaiah Gabriel S. Huliganga, Angel Marie C. Jimenez, Ferdinand B. San Luis, and Erice Jade A. Sarabia .-- |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. |
|---|
| Place of publication, distribution, etc. |
Manila: |
| Name of publisher, distributor, etc. |
Technological University of the Philippines, |
| Date of publication, distribution, etc. |
2024. |
| 300 ## - PHYSICAL DESCRIPTION |
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| Extent |
xviii, 111pages: |
| Dimensions |
29cm. |
| 336 ## - CONTENT TYPE |
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| Source |
rdacontent |
| 337 ## - MEDIA TYPE |
|---|
| Source |
rdamedia |
| 338 ## - CARRIER TYPE |
|---|
| Source |
rdacarrier |
| 500 ## - GENERAL NOTE |
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| General note |
Bachelor's thesis |
| 502 ## - DISSERTATION NOTE |
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| Dissertation note |
College of Engineering .-- |
| Degree type |
Bachelor of Science in Civil Engineering; |
| Name of granting institution |
Technological University of the Philippines, |
| Year degree granted |
2024. |
| 504 ## - BIBLIOGRAPHY, ETC. NOTE |
|---|
| Bibliography, etc. note |
Includes bibliographic references and index. |
| 520 ## - SUMMARY, ETC. |
|---|
| Summary, etc. |
The production of cement requires a significant amount of natural resources and energy, contributing to resource depletion and increased CO₂ emissions, which aggravate global warming and climate change. Simultaneously, the accumulation of agricultural waste, such as coffee husks, adds to environmental pollution. This study investigates the potential use of calcined robusta coffee husk ash (CHA) as a partial replacement for ordinary Portland cement (OPC) in paving block production. Coffee husks were calcined at 600°C for 3 hours using a muffle furnace. Paving blocks were produced with varying CHA replacement levels (0%, 5%, 10%, 15%, and 20% by volume) and molded into 200 mm × 100 mm × 60 mm blocks. A total of 120 specimens were tested after curing periods of 7, 14, and 28 days to evaluate their physical properties (density and water absorption) and mechanical properties (compressive strength, flexural strength, and skid resistance) following respective standards. The results revealed that paving blocks with 5% CHA replacement demonstrated best performance, meeting the standards for compressive strength, flexural strength, and skid resistance, making it the most suitable mix design for this study. <br/><br/>Keywords: coffee husk ash, calcination, paving blocks, compressive strength, flexural strength, skid resistance |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name entry element |
Civil engineering |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name entry element |
Paving blocks |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name entry element |
Coffee husk ash |
| 700 ## - ADDED ENTRY--PERSONAL NAME |
|---|
| Personal name |
Flores, Karla A. |
| Relator term |
author |
| 700 ## - ADDED ENTRY--PERSONAL NAME |
|---|
| Personal name |
Huliganga, Isaiah Gabriel S. |
| Relator term |
author |
| 700 ## - ADDED ENTRY--PERSONAL NAME |
|---|
| Personal name |
Jimenez, Angel Marie C. |
| Relator term |
author |
| 700 ## - ADDED ENTRY--PERSONAL NAME |
|---|
| Personal name |
San Luis, Ferdinand B. |
| Relator term |
author |
| 700 ## - ADDED ENTRY--PERSONAL NAME |
|---|
| Personal name |
Sarabia, Erice Jade A. |
| Relator term |
author |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) |
|---|
| Source of classification or shelving scheme |
Library of Congress Classification |
| Koha item type |
Bachelor's Thesis COE |
| Suppress in OPAC |
No |