姓名 |
呂松吉(Sung-Chi Lu) |
電子郵件信箱 |
E-mail 資料不公開 |
畢業系所 |
營建工程系碩士班(Department and Graduate Institute of Constrction
Engineering) |
畢業學位 |
碩士(Master) |
畢業時期 |
96學年第1學期 |
論文名稱(中) |
管溝開挖砂性土壤與底灰產製控制性低強度回填材料之性質研究 |
論文名稱(英) |
The
Study of Controlled Low Strength Material Using Sandy Soils from
Trench Excavation Mixed with Bottom Ash |
檔案 |
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|
論文使用權限 |
校內外都二年後公開 |
論文語文/頁數 |
中文/69 |
摘要(中) |
本研究利用兩種回收再利用材料(砂性土讓、底灰),經處理將較大顆粒去除後,以不同水灰比及不同之砂性土讓與底灰比例,透過一系列試驗探討其對於控制性低強度材料的抗壓強度影響。本研究結果水灰比降低則試體強度增高,顯示控制性低強度材料抗壓強度主要還是取決於配比中水灰比之高低,抗壓強度與水灰比成反比之關係,尤其當水灰比小於1.60∼1.75時強度明顯提高。本實驗結果亦顯示添加底灰會使強度增加,而初步推論添加底灰比例若超過20%∼25%時則強度增加幅度會明顯趨於平緩。由實驗結果初步推論當水灰比小於2.5時,則可適量提高底灰之比例,有助於強度的發展,此水灰比有待進一步驗證。由實驗結果本研究建議依工程實務狀況水灰比可選擇在1.40∼2.20之間,添加底灰之比例可選擇在20%∼40%之間,則可符合目前我國對CLSM之強度及工作度的要求。 |
摘要(英) |
The
study was designed to investigate the mechanical properties of
controlled low strength material (CLSM) with the use of
re-cycled construction materials such as sandy soils from trench
excavation and bottom ash from power plant furnace. A series of
tests were conducted at 3 water/cement ratios (1.41, 1.71, and
2.18) and sand soils mixed with bottom ash for selected volume
percentages (100:0, 80:20, and 60:40). The results of study
indicated that the compressive strength of CLSM is mainly
dependent upon the w/c ratio. The lower w/c ration resulted in
higher strength of CLSM, especially when w/c ratio is smaller
than about 1.6~1.75, the strength increases even more
significantly.
The results of study also revealed that strength of CLSM also
increases with increasing volume percentage of the bottom ash.
However, the study preliminarily concluded that the increase
tends to become lesser when the bottom ash is greater than about
20-25%. In addition, the results of the study also revealed a
preliminary finding that when w/c ratio is smaller than 2.5, the
strength of CLSM could be enhanced by properly increasing the
volume percentage of bottom ash. This water/cement ratio of 2.5
should be confirmed by further tests and study.
For the practical application of the CLSM in the field, the
study suggested that w/c ratio between 1.4-2.2 and volume
percentage of bottom ash between 20-40% may be used in
accordance with project requirements in terms of strength and
workability. |
關鍵字(中) |
管溝開挖
砂性土壤
控制性低強度材料
底灰
|
關鍵字(英) |
bottom ash
trench excavation
CLSM
sandy soils
|
口試委員 |
紀子文 - 召集委員
蔡佩勳 - 委員
張子修 - 指導教授
|
口試日期 |
2008-01-20 |
繳交日期 |
2008-02-16 |