| Summary: | 碩士 === 朝陽科技大學 === 營建工程系碩士班 === 92 === The study is to save national energy by reusing waste residue (construction sludge) on controlled low strength materials (CLSM), and make CLSM become a material which could really meet the requirements of ecological engineering. The improvement and research of CLSM for ecological engineering is to use fly ash, slag or lime instead of cement content and add waste residue (construction sludge) for recycling. Hoping it make the best offer of appliance and reference of the various engineering in the future.
The test results show that the maximum percentage of construction sludge instead of fine aggregate in the CLSM mix is 24%, and the volume limit of lime or cement is 3% (60kg/m3) as saving energy concern. When the ratio of F-class fly ash and slag is 2.0, the slump flow was more than 400mm and the 28-day compressive strength was between 10kg/cm2 and 90kg/cm2. The CLSM with lime also could remove from mold within 36 hours for curing and it could reach the target of final set within 6 hours by adding water glass. Both early set and reducing settlement were possessed. Finally, the CLSM by adding construction sludge in the freeze-thaw durable test should be a feasible project.
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