Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/13801
標題: 淤泥骨材燒製及拌製混凝土之研究
Research on the Production of Lightweight Aggregate and Concrete Utilizing the Clay in Reservoirs
作者: 范國晃
Fan, Kuo Huang
關鍵字: Clay;淤泥;Reservoirs;Lightweight Aggregate;Lightweight Aggregate Concrete;水庫;輕質骨材;輕質混凝土
出版社: 土木工程學系
摘要: 
利用石門水庫浚渫所得之淤泥,藉由燒結方式可成功燒製淤泥輕質骨材。當燒結溫度800℃至1000℃時,可燒製出低顆粒單位重骨材,但顆粒強度差,吸水率大,不適於工程上之應用,當溫度達1100℃時顆粒強度已高,但外表無玻璃化,吸水率偏高,但不失為可用之輕質骨材,當溫度達1200℃時其顆粒單位重約1800kg/m3,吸水率3~4%,且外表具有質地光滑的玻璃化層,顆粒強度佳。
以淤泥輕質骨材拌製混凝土,其乾燥單位重較普通混凝土減少約四分之一。其水泥含量290㎏/m3及480㎏/m3時其28天抗壓強度可達20Mpa及40Mpa以上,顯示骨材性質良好。若以顆粒單位重940kg/m3,12~9㎜粒群之淤泥輕質骨材拌製之輕質磚,其28天抗壓強度約可達5Mpa,乾燥單位重可降低至900kg/m3,熱傳導係數則約0.6kcal/m.hr.℃。

By sintering, we can successfully produce the clay lightweight aggregate using the clay from the Shihmen Dam. When the sintering degree is between 800℃ and 1000℃, we can produce aggregate with low particle density but bad particle strength and high absorption. It is not suitable for construction. When the sintering degree is 1100℃, the particle strength is already very good. Although the surface is not glassified and with high absorption, it is still useful lightweight aggregate. At 1200℃, the particle density is about 1800 kg/m3 and the absorption is around 3 to 4%. Furthermore, the surface is covered with a smooth and glassified layer and the particle strength is good.
Concrete mixed with the clay lightweight aggregate will have drying unit weight a quarter lower than normal concrete. When its cement content is about 290 kg/m3 and 480 kg/m3, its 28-day compressive strength can reach above 20 Mpa and 40 Mpa, which indicates that the essence of the aggregate is good. Lightweight bricks made out of the clay aggregate with the particle density of 940 kg/m3 and particle number of 12~9 mm can obtain an 28-day compressive strength of about 5 Mpa. The drying unit weight can be lowered to 900 kg/m3 while the thermal conductivity is approximately 0.6kcal/m.hr.℃.
URI: http://hdl.handle.net/11455/13801
Appears in Collections:土木工程學系所

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