| URN | etd-0712112-132910 | Statistics | This thesis had been viewed 584 times. Download 0 times. |
| Author | Lu-yun Wang | ||
| Author's Email Address | No Public. | ||
| Department | Institute of construction technology | ||
| Year | 2011 | Semester | 2 |
| Degree | Master | Type of Document | Master's Thesis |
| Language | zh-TW.Big5 Chinese | Page Count | 122 |
| Title | Study of Mix Design with Fly Ash, Bottom Ash and FGD Gypsum for Subbase and Base Course | ||
| Keyword | |||
| Abstract | This study discusses the mix design with fly ash, bottom ash and FGD gypsum generated by power plant for subbase and base courses. The optimum water contents are to be determined by the analysis of maximum dry density test, compressive strength test, CBR test and permeability test. The mix design for sub-base course and base course are (1) fly ash + bottom ash and (2) fly ash + bottom ash + FGD gypsum, and (3) fly ash + bottom ash + cement and (4) fly ash + bottom ash + FGD gypsum + cement, respectively. The test results are analyzed by the method of Analysis of Variance (ANOVA). The results show that the optimum compositions of the mix design are (1) 40% fly ash + 60% bottom ash and (2) 40% fly ash + 60% bottom ash + 15% FGD gypsum for sub-base course, and (3) 40% fly ash + 60% bottom ash + 5% cement for base course. The optimum water cement ratio of mix design (4) is 0.5. Both the results of mix design (1) and (2) for subbase course can fulfill the requirement of pavement construction. The mix design (2) provides higher bearing capacity and lower permeability coefficient than that of mix design (1). The results of mix design (3) and (4) can fulfill the requirement of cement stabilized base course of pavement specified by the authority of California. The mix design (4) provides a highly compressive strength and lowly permeability coefficient. The coal ash generated from power plant can be effectively utilized by using the mix designs with fly ash, bottom ash, FGD gypsum and cement for sub-base and base courses; and the cost for disposal and treatment of coal ash can be reduced. Keywords: Subbase course, base course, mix design, fly ash, bottom ash, FGD gypsum. |
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| Files | indicate in-campus access only | ||
| Date of Defense | 2012-06-29 | Date of Submission | 2012-07-16 |