Alcala, Naomi Elyza S.  <br/><br/>
Enhancement of the compressive strength of concrete paving blocks with pulverized tilapia fish scale as mineral filler/ 
Naomi Elyza S. Alcala, Geo B. Cayagaya, Aejean G. Ponting, Jay Mark V. Suarez, and Justin Paul E. Valenzuela.-- 
 - Manila:   Technological University of the Philippines,   2024. 
 - x, 102pages:  29cm. 
<br/><br/> Bachelor's Thesis 
<br/><br/>College of Industrial Technology.-- 
<br/><br/>Includes bibliographic references and index. 
<br/><br/> In the Philippines, tilapia is the second most important fish raised. Fish scales are<br/>frequently viewed as abandoned garbage from the aquaculture sector, which presents<br/>significant problems with material waste and environmental harm. Tilapia fish scales are<br/>primarily composed of calcium carbonate, which has the structure of calcium<br/>hydroxyapatite and adds to the compressive strength of the building material. Research<br/>suggests that tilapia fish scales may benefit concrete mixtures, particularly concrete paving<br/>blocks, voids, and compressive strength. This study investigates the use of pulverized<br/>Tilapia fish scales as a mineral filler to improve the compressive strength of concrete<br/>paving blocks. Pulverized Tilapia fish scales were used to make concrete paving blocks<br/>with 0%, 5%, 10%, 15% and 20%. The cement-sand-aggregates ratio is 1:1.5:1:5 with<br/>water-cement ratio of 0.30 while 0.31 for 0% pulverized Tilapia fish scales. The blocks<br/>underwent a 28-day curing process. All necessary specifications and standard tests methods<br/>followed the American Society for Testing and Materials (ASTM), including ASTM C936<br/>for target compressive strength and water absorption by using ASTM C140 as standard test<br/>method. Based on water absorption test results, mix 2 has the lowest with 8.93%. Based on<br/>compressive strength test results, mix 1 has the highest with 56.84 MPa. Using the TUP<br/>Instrument Evaluation Form, thirty (30) respondents including engineers, architects, and<br/>other professionals in the construction industry assessed the developed prototype. The<br/>evaluation received a descriptive score of "Very Acceptable" and an overall mean of 4.22. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Compressive strength<br/>Mineral filler<br/>Enhancement
<br/><br/><label>LC Class. No.: </label>BTH TH 438  / A43 2024