電弧爐氧化碴安定化處理後應用於透水混凝土之可行性研究

Research on feasibility of using treated electric arc furnace oxidizing slag in pervious concrete

葉峻宏(Yeh-Chun Hung)

指導教授 ： 王韡蒨

中原大學/工學院/土木工程研究所/碩士(2015年)

https://doi.org/10.6840/cycu201500111

摘要

近年來因混凝土粒料面臨短缺問題，急需尋求額外可利用之資源，而爐碴為每年產量眾多之廢棄物，將爐碴取代天然粒料可帶來龐大的經濟效應，再者考量全球暖化現象，台灣豪雨成災之現象日益嚴重，透水混凝土因具滲透能力與調節熱量等效益，可以改善其問題，若使用爐碴取代天然粒料應用於透水混凝土，亦可增加綠色資源再利用與工業廢棄物處理問題。
本研究製作透水混凝土前，將爐碴粒料進行安定化處理，以解決膨脹問題，並參考日本JIS A5371與CNS 14995透水規範標準，使用天然粒料、未安定爐碴及安定化爐碴製作透水混凝土進行分析比較，分別探討其抗壓強度、透水係數、保水性、吸水性及健性，最後比對各項試驗結果，評估爐碴應用於透水混凝土之可行性。
試驗結果顯示，爐碴透水混凝土抗壓強度優於天然粒料透水混凝土，且透水係數並未因此降低，而強度在漿體填充空隙率75 %~85 %範圍，未隨填充空隙率提升而增加，各項性能會因水灰比、漿體填充空隙率及是否使用強塑劑等不同，粒料堆疊與黏結狀況就有所差異的影響。此外安定化之爐碴透水混凝土經健性試驗後並未發生嚴重崩壞或膨脹等現象發生，顯示安定化後之爐碴粒料可應用於透水混凝土。

關鍵字

抗壓強度 ； 安定化爐碴 ； 透水係數 ； 強塑劑

並列摘要

In recent years, faced with shortages due to concrete aggregates, Urgent need to seek additional resources available, The annual production of many of the furnace slag as waste, The furnace slag can replace the natural aggregates bring huge economic effects, Also consider the phenomenon of global warming, Taiwan torrential rains inundated the phenomenon of growing, Pervious concrete due to a penetration ability and regulate the heat and other benefits, Can improve their problem, If using furnace slag replace the natural aggregates applied in pervious concrete, also increase green recycling and industrial waste disposal problem.
This study before making pervious concrete, The furnace slag were stable treatment, To solve the expansion problem, And refer to Japanese JIS A5371 and CNS 14995 permeable normative standards, The use of natural aggregates, Use natural aggregates, no stabilization furnace slag and stabilization furnace slag were analyzed and compared the production of pervious concrete, Respectively, to explore the compressive strength, permeability coefficient, water retention, absorbent and soundness, Finally, compare the test results, Furnace slag applies feasibility assessment of pervious concrete.
The results show, furnace slag better than natural aggregates pervious concrete compressive strength, And did not result in reduced permeability coefficient, The strength in the slurry filled porosity of 75% to 85% range, the compressive strength have not increased along with the slurry filled porosity upgrade, The performance will be due to W/C, slurry filled porosity, and whether the use of Superplasticizer, etc. Different, Pellets are stacked and bonded conditions have an impact on the difference. Furthermore stabilization furnace slag soundness test did not happen after serious collapse or expansion of such phenomena occur.

並列關鍵字

compressive strength ； Superplasticizer ； stabilization furnace slag ； permeability coefficient

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