| Summary: | 碩士 === 義守大學 === 土木與生態工程學系 === 106 === As the new technology is developing quickly and the pursuit of the economic growth becomes the main object for most countries. The development of the natural resource becomes overused and damaged. More demand on the different materials is highly acquired. Hence, the amounts of different wastes are growing fast and become an important issue to all the countries. It’s an emerging problem to Taiwan, an island with a scarce land. In Taiwan, the municipal solid wastes are mostly incinerated to reduce the volume of the wastes. However, the bottom ash, a bi-product of incineration of solid wastes, is produced and gradually accumulated becoming another emerging problem to be solved. In this study, the bottom ash is applied to replace part of the natural aggregates to manufacture the low density reclaimed permeable concrete. The basic properties and aggregate aggradation distribution of bottom ash are investigated. Moreover, the results performed by the SEM to investigate the interior structures of the bottom ash shows that the interior structures of the bottom ash were slender. Four different amounts of natural aggregates, 0, 10, 20, and 30%, are replaced by the bottom ash. The water/cement ratio of 0.45 for each design with bottom ash replacement are met the requirement of the standard of slump test. The best optimum replacement amount of bottom ash is 20%, which is determined by the results obtained from compressive strength test, permeability test, and unit weight test when applied the reclaimed permeable concrete to the base layer of the pavement. The rebound hammer test, in-situ permeability test, and DCP test are carried out to assess the in-situ performances of the reclaimed permeable concrete. Furthermore, the CBR and Mr values are obtained from the DCPI values and the regression equation is acquired from the regression analysis for obtaining appropriate concrete age in strength which is 3 days had met the engineering requirement.
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