摻有廢輪胎橡膠細骨材及淨水污泥混凝土之研究

Research on the concrete incorporating waste tier rubber fine aggregate and water purification sludge

施乃權(Nai-Quen Shih)

指導教授 ： 吳崇豪

共同指導教授 ： 莊清鏘(Ching-Chiang Chuang)

中原大學/工學院/土木工程研究所/碩士(2021年)

https://doi.org/10.6840/cycu202100800

摘要

本研究以廢輪胎橡膠細骨材與淨水污泥取代天然細骨材產製混凝土並探討兩種材料的添加對混凝土力學性質的影響。規劃兩種混凝土抗壓強度140kgf/cm2及210kgf/cm2，橡膠細骨材取代率為天然細骨材體積之0%、10%及20%，淨水污泥則取代天然細骨材之體積0%、30%及60%，試驗齡期為28天。研究結果顯示，新拌混凝土之坍度和單位重隨橡膠細骨材及淨水污泥取代量的增加而減小，混凝土抗壓強度、抗彎強度、劈裂強度及超音波波速之發展亦有相同的趨勢。橡膠細骨材混凝土抵抗滲透的能力比淨水污泥混凝土佳，惟添加橡膠細骨材及淨水污泥之混凝土的耐久性仍低於無添加者。淨水污泥取代量較多之混凝土於橡膠細骨材周圍的界面過度區有較多的未膠結污泥顆粒，不利於混凝土抗壓強度及耐久性的表現。整體而言，本研究之橡膠污泥混凝土仍有一定的強度及耐久性，具有應用於非結構用混凝土之可行性

關鍵字

廢輪胎橡膠 ； 淨水污泥 ； 混凝土

並列摘要

In this study, waste tire rubber fine aggregate and water purification sludge were used to replace natural fine aggregate to produce concrete and the effects of the addition of the two materials on the mechanical properties of concrete were investigated. It is planned that the compressive strength of two kinds of concrete is 140kgf/cm2 and 210kgf/cm2, the replacement rate of rubber fine aggregate is 0%, 10% and 20% of the volume of natural fine aggregate, and that of water purification sludge is 0%, 30% and 60% of the volume of natural fine aggregate. The test age is 28 days. The results show that slump and unit weight of freshly mixed concrete decrease with the increase of the replacement amount of rubber fine aggregate and water sludge, and the development of compressive strength, bending strength, splitting strength and ultrasonic wave velocity of concrete also have the same trend. The ability of rubber fine aggregate concrete to resist infiltration is better than that of purified sludge concrete, but the durability of concrete with added rubber fine aggregate and purified sludge is still lower than that without added. There are more uncemented sludge particles in the interface transition zone around rubber fine aggregate, which is not conducive to the performance of concrete compressive strength and durability. On the whole, the rubber sludge concrete in this study still has some strength and durability, and it is feasible to be applied to non-structural concrete.

並列關鍵字

waste tire rubber ； water purification sludge ； concrete

參考文獻

1. 陳豪吉等，「淨水污泥冷結固化再利用之可行性研究」，台灣自來水公司研究報告，2014年。

2. 交通部，「交通統計機動車輛登記數統計」，2021年1至3月，網址：https://stat.motc.gov.tw/mocdb/stmain.jsp?sys=100 funid=a3301。

3. Kaowalska, E., Wielgosz, Z. Scrap Rubber Reused, "A New Process Produces Porous Pipes from Worn-Out Tires. Polymer Recycling," 2(3), 213-219, 1996.

4. 行政院環境保護署基管會，「環保署說明國內廢輪胎處理情形」，環保新聞專區，2017年，網址：https://enews.epa.gov.tw/enews/fact_Newsdetail.asp?InputTime=1061107130101。

5. Turner-Fairbank Highway Research Center, The User Guidelines for Waste and Byproduct Material in Pavement Construction, Federal Highway Administration, Scrap Tires – Material Description.