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  • 學位論文

廢棄中空植草磚應用於非制式混凝土粗骨材之初步研究

Study of Non-Standard Concrete Property Using Recycled Hollow Pavement Masonry Block

指導教授 : 張子修
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摘要


本研究使用廢棄中空植草磚經碎化篩選後替代標準混凝土之粗骨材,對再生混凝土探討其相關工程及力學性質及替代標準混凝土粗骨材使用之可能性。 由本研究實驗結果得知在水灰比0.5、1和1.5之再生混凝土其28天強度分別可達309.18 kg/cm2,104.17 kg/cm2,41.1 kg/cm2與標準混凝土相較之下皆達其強度之70%至75%。整體而言在水灰比0.5、1.0與1.5時使用100%再生骨材之再生混凝土與標準混凝土(完全使用天然骨材)抗壓強度百分比相差異不超過30%,尤其在再生骨材代替率小於40%時其強度差異更小於10%。一般而言,實驗結果顯示使用再生骨材之混凝土其磨損量較標準混凝土增加至130%~260%,而在水灰比0.5時最高更可增至300%以上。 本研究結果認為再生混凝土可用於興建次要結構物,如駁坎、圍牆等工程、CLSM(控制性低強度材料)、人行路面、自行車專用道及廣場鋪設。

並列摘要


This study used crushed pieces of hollow pavement masonry block as an alternative coarse aggregate for concrete mix by examining the related engineering and mechanical properties of the concrete to study the feasibility of future application not only to reduce the quantity but also to create additional value of the recycled material as beneficial rather than costly construction waste. The results from this study indicate the 28-day strength of recycled concrete with water ratio of 0.5 1.0 and 1.5 were up to 309.18 kg/cm2, 104.17 kg/cm2, and 41.1 kg/cm2, respectively, which are about 70% ~ 75% of the standard concrete without using recycled aggregate. Overally speaking, the difference in compression strength between the recycled concrete and standard concrete were no more than 30%, however when recycled aggregate used less than 40%, the difference is less than 10%. In general, the experiment results show that the abrasion of the concrete specimens increases with increasing recycled aggregate percentage used, which is in the range of 130 ~ 260%. It should be noticed that the increase of abrasion can be up to more than 300% for recycled concrete with water cement ratio of 0.5. The study conclude that the recycled concrete can be used for the construction of secondary structures such as minor river levee, pipeline excavation, CLSM (controlled low strength material), pedestrian walkway, bicycle lanes and paved farmland passage.

參考文獻


【19】莊惠丞,「新澆置再生混凝土受震擾動後之強度研究」,朝陽科技大學營建工程系碩士論文,2009年。
【20】曾毓威,「再生碎紅磚及底灰產製非制式控制性低強度材料之初步研究」,朝陽科技大學營建工程系碩士論文,2010年。
【21】黃永週,「台灣中部山區風化岩崩積土作為特殊混凝土骨材之先期研究」,朝陽科技大學營建工程系碩士論文,2010年。
【22】黃世芳,「再生碎紅磚替代天然粗骨材產製混凝土之初步研」,朝陽科技大學營建工程系碩士論文,2011年。
【23】黃昱達,「台灣中部水庫淤積土應用於非制式混凝土細骨材之初步研究」,朝陽科技大學營建工程系碩士論文,2011年。

被引用紀錄


謝汶芳(2013)。營建廢棄物運用於再生混凝土之比較研究〔碩士論文,朝陽科技大學〕。華藝線上圖書館。https://www.airitilibrary.com/Article/Detail?DocID=U0078-2712201314042579

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