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Kalinangan Refereed Journal

Volume no. 27 | 2019/11
Issue no. 2


Title
POLYSTYRENE BEADS AS AN ALTERNATIVE COARSE AGGREGATE FOR STRUCTURAL LIGHTWEIGHT CONCRETE BLOCK
Author
Malaluan, Merlin C.; Amul, Janine Rei M.; Cometa, Dianna Rose V.; Guico, May Ann C.; Pagaduan, Shulamite P.; Villanueva, Carl Ivan B.
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Abstract
This study determined the effectiveness of using polystyrene beads as an alternative coarse aggregate for structural lightweight concrete block and addressed the issue of waste management particularly of Styrofoam by integrating it as an aggregate for a structural lightweight concrete block. The researchers looked into the characteristics of expanded polystyrene beads or Styrofoam which made it a suitable alternative coarse aggregate; how the expanded polystyrene lightweight concrete differs from commercial concrete block in terms of strength, workability, and cost; whether there is a significant difference between the two types; and the benefits that the use of polystyrene beads as an alternative coarse aggregate will bring to the community and to the construction industry. This study is developmental in nature where the researchers utilized a combination of careful judgment, creativity, and use of questionnaire to obtain the data. Fifty residents, or ten from each of the five selected barangays in Batangas City, took part in the evaluation and testing of the product. The researchers used weighted mean, ranking, and f-test as statistical tools. In the end, the research revealed that the characteristics of polystyrene beads qualify as an alternative aggregate for lightweight concrete. The results also showed a significant difference in the properties of the lightweight and the commercial concrete blocks. The null hypothesis was thus rejected. The researchers proposed an in-depth analysis and the use of other recyclable materials to promote sustainable development.
Keywords
aggregate, alternative coarse aggregate, concrete block, construction industry, polystyrene beads
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