MARC details
| 000 -LEADER |
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| fixed length control field |
03049nam a22003257a 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 |
20250710133008.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION |
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| fixed length control field |
250710b |||||||| |||| 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 |
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| Classification number |
BTH TH 438 |
| Item number |
A46 2025 |
| 100 ## - MAIN ENTRY--PERSONAL NAME |
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| Personal name |
Alonzo, John Angelo S. |
| Relator term |
author |
| 245 ## - TITLE STATEMENT |
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| Title |
Effects of pulverized cockle shell as mineral filler to voids and cracks in concrete paving block using upv and upe/ |
| Statement of responsibility, etc. |
John Angelo S. Alonzo, Mon Albert L. Castillo, Lizbeth Laurize L. Flestado, Lj B. Gubatanga, and Mica Lorraine M. Santos.-- |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. |
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| Place of publication, distribution, etc. |
Manila: |
| Name of publisher, distributor, etc. |
Technological University of the Philippines, |
| Date of publication, distribution, etc. |
2025. |
| 300 ## - PHYSICAL DESCRIPTION |
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| Extent |
xiii, 159pages: |
| Dimensions |
29cm. |
| 336 ## - CONTENT TYPE |
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| Source |
rdacontent |
| 337 ## - MEDIA TYPE |
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| Source |
rdamedia |
| 338 ## - CARRIER TYPE |
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| 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 Industrial Technology.--<br/> |
| Degree type |
Bachelor of engineering technology major in construction technology: |
| Name of granting institution |
Technological University of the Philippines,<br/> |
| Year degree granted |
2025. |
| 504 ## - BIBLIOGRAPHY, ETC. NOTE |
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| Bibliography, etc. note |
Includes bibliographic references and index. |
| 520 ## - SUMMARY, ETC. |
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| Summary, etc. |
Discarded cockle shells in Philippine coastal areas, like Camarines Sur, pose<br/>environmental risks. However, their rich calcium carbonate content, determined at<br/>65.54%, can enhance the properties of concrete. This study tested pulverized cockle<br/>shells as mineral filler in concrete paving blocks for light traffic areas. Various<br/>percentages of pulverized cockle shells, including 0%, 1%, 2%, 3%, and 4%, were added<br/>to the mixture, utilizing cement-sand-aggregate ratios of 1:1:1.5 with a water-cement<br/>ratio of 0.37, and cement-sand ratios of 1:3 with a water-cement ratio of 0.40. After 28<br/>days of curing, the blocks were tested for compressive strength, water absorption,<br/>flexural strength, ultrasonic pulse velocity, and ultrasonic pulse echo. For blocks with<br/>coarse aggregates, Mix 1 had the highest compressive strength at 50.54 MPa, while Mix<br/>2 had lowest at 36.52 MPa. Without coarse aggregates, Mix 1 reached 42.72 MPa,<br/>whereas Mix 2 had the lowest at 29.13 MPa. According to water absorption tests, blocks<br/>containing aggregates absorbed 2.93% of water in the control mix and 2.30% in Mix 5.<br/>The control mix without aggregates had 4.82% absorption, while Mix 5 had the lowest<br/>absorption at 4.06%. Flexural strength in concrete paving block with coarse aggregates,<br/>Mix 1 had highest strength at 2.55 MPa, while Mix 5 had lowest at 1.44 MPa, while<br/>block without coarse aggregates, Mix 1 achieved highest strength at 2.30 MPa, and Mix 5<br/>the lowest at 0.77 MPa. Ultrasonic pulse echo showed that Mix 1 exhibited more voids<br/>than Mix 5. In ultrasonic pulse velocity, both Mix 1 and Mix 5 achieved ASTM C597,<br/>with velocity rates exceeding the minimum passing rate 3, 500m/s. |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
Concrete paving block |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
Pulverized cockle shell |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
Filler |
| 700 ## - ADDED ENTRY--PERSONAL NAME |
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| Personal name |
Castillo, Mon Albert L. |
| Relator term |
author |
| 700 ## - ADDED ENTRY--PERSONAL NAME |
|---|
| Personal name |
Flestado, Lizbeth Laurize L. |
| Relator term |
author |
| 700 ## - ADDED ENTRY--PERSONAL NAME |
|---|
| Personal name |
Gubatanga, Lj B. |
| Relator term |
author |
| 700 ## - ADDED ENTRY--PERSONAL NAME |
|---|
| Personal name |
Santos, Mica Lorraine M. |
| Relator term |
author |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) |
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| Source of classification or shelving scheme |
Library of Congress Classification |
| Koha item type |
Bachelor's Thesis CIT |
| Suppress in OPAC |
No |