Concrete roof tile with eichhornia crassipes (water hyacinth)

Thesis (Bachelor of Science in Civil Engineering) -- University of Rizal System-Morong.

EXECUTIVE SUMMARY: This research entitles "Concrete Roof Tile with Eichhornia crasspies (Water Hyacinth) ad Crushed Glass Bottles" which focuses on the effectiveness of the concrete roof tile made in this study based on the results of the test that it will undergo. It was conducted by three (3) fifth year civil engineering students during the first semester of the Academic year 2015-2016 at the University of Rizal System-Morong Campus. The researchers conceptualized this study to develop a concrete roof tile with Crushed Glass Bottles and Water Hyacinth. The researchers included crushed glass bottles as an additional fine aggregates in the conventional concrete proportion. When glass bottles have been crushed and processed, they may have a lighter weight than sand. Crushed glass bottles could be an economical substitute for lightweight aggregates rather existing expanded shale which made the concrete roof tile too costly. This mixture may also reduce the water absorption rate of the concrete roof tiles since crushed glass bottles are not as permeable as sand. Reducing the amount of sand and replacing it by crushed glass bottles, the proportion may also have an impact in the production cost of concrete roof tile. According to the gathered data on the observation, the study failed in transverse strength water absorption test but passed on permeability test. The sample with higher crushed glass bottles and pulverized water hyacinth mixture has lower water absorption percentage. This is because crushed glass bottles is not as permeable as sand. However, very small difference in water absorption percentage is observed during the testing. The varying amount of water hyacinth have also an impact on it. The result of the experiment conducted for this research were reviewed and analyzed to come up with the correction and formulation in making concrete roof tile with crushed glass bottles and water hyacinth. For further studies consideration of proportions, curing process and other materials can also be a consideration to improve the study.