| 姓名 |
周德威(Te-Wei
Shou) |
電子郵件信箱 |
s8511104@mail2000.com.tw |
| 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 |
91學年第2學期 |
| 論文名稱(中) |
高爐水泥及其摻料對黏土力學性質改良之研究 |
| 論文名稱(英) |
The Study of
Mechanical Properties of Slag Cement and Admixtures Stabilized
Clay |
| 檔案 |
本電子全文僅授權使用者為學術研究之目的，進行個人非營利性質之檢索、閱讀、列印。
請遵守中華民國著作權法之相關規定，切勿任意重製、散佈、改作、轉貼、播送，以免觸法。
|
論文使用權限 |
校內外完全公開 |
| 論文語文/頁數 |
中文/118 |
| 摘要(中) |
本研究主要是針對黏土質地盤來進行土壤改良時，添加不同量的高爐水泥、飛灰與水玻璃，研究改良材料之添加量與養護時間對黏土力學性質之影響。本研究之黏土取自於高雄月世界泥岩、台東池上黏土與台中大肚山紅土混合15%皂土。本研究將對改良土壤進行阿太堡試驗、無圍壓縮強度試驗、膨脹性試驗，以探討改良後土壤活性、強度、與膨脹性之變化。研究結果顯示，三種黏土之塑性指數，隨著改良材料含量的增加而下降，改良效果以紅土混合15%皂土這組土壤最佳。在無圍壓縮強度方面，高爐水泥含量為被改良土乾重量的20%∼25%，可得最經濟有效的改良土強度，而養護齡期7天後改良土強度的成長就日漸趨緩。各改良土強度依序為月世界泥岩大於紅土混合15%皂土又大於台東黏土。於高爐水泥含量20%和黏土混合土中，再摻入20%飛灰，對於改良土強度的發展才有較佳之效果。經飛灰改良後強度依序為月世界泥岩大於台東黏土又大於紅土混合15%皂土。添加水玻璃於高爐水泥和黏土混合土中，其水玻璃添加量應以2~6%為宜，當水玻璃添加量為8%時，強度反而偏低，改良後之強度為台東黏土大於紅土添加15%皂土又大於月世界泥岩。添加改良材料於黏土後，楊氏模數E50
隨著改良材料含量的增加而增加，且隨著養護時間的增長而增加。改良土之E50依序為月世界泥岩大於台東黏土大於紅土混合15%皂土。膨脹性試驗結果顯示，添加20%高爐水泥後，黏土之膨脹率隨著養護時間之增加而降低，但在養護時間14天時膨脹率之降低已不明顯。若比較三種黏土經高爐水泥改良後之膨脹率大小，則以紅土混合15%皂土這組土壤之膨脹率降低最多。 |
| 摘要(英) |
The main purpose of
this study is to research the influence of slag cement and admixtures
including fly ash or water glass, on three soils, such as the Kaohsiung
mudstone, the Taitung clay and Taichung lateritic be mixed 15% of
bentonite. To study on activity, strength and swelling property of
improved soil, laboratory tests including the Atterberg limit test,
unconfined compression test and swelling test for improved soil were
done. Soils treated with various percentage of slag cement and
admixtures. The results of this study show that the Atterberg limits of
improved soil are decreased with the contain of slag cement and
admixtures. The best improved effect on activity is the Taichung
lateritic. The optimal contain of slag cement on unconfined compression
strength is about 20%∼25% of dry soil weight. The unconfined compression
strength of improved soil is increased with the contain of slag cement
and curing time, additional strength gains of the Taichung lateritic
mixed with slag cement could have been increased farther. Admixed fly
ash into stabilized soil does not matter to additional strength gains,
excluding that the contain of fly ash more than 20% of slag cement
contain. The optimal contain of water glass on unconfined strength is
about 2%∼6% of slag cement contain. The modulus E50 of stabilized soil
is increased with the contain of slag cement and curing time. The
swelling percentage of improved soil is decreased with curing time in 14
days. |
| 關鍵字(中) |
水玻璃
高爐水泥
土質改良
飛灰 |
關鍵字(英) |
soil improvement
water glass
fly ash
Slag cement |
| 指導教授 |
蔡佩勳
|