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Mechanical & Physical Properties of Flowable Fill Using Bottom Ash

The effectiveness of bottom ash on the slump flow, compressive strength of flowable fill is investigated in this study. This study was undertaken on the use of bottom ash as a fine aggregate in flowable fill. Bottom ash is combined with portland cement, fly ash, and water to flowable fill with slump flow(20~30cm). Four different level of bottom ash with fly ash contents, 25%, 50%, 75%, 100% are investigated. Laboratory test results conclude that the inclusion of bottom ash increases the demand for mixing water n obtaining the require slump flow.