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    Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/64865

    Title: 運用鹼活化技術製作全爐碴混凝土可行性研究
    Authors: 林偉量;Lin,Wei-liang
    Contributors: 土木工程學系
    Keywords: 鹼活化混合爐碴混凝土;爐碴粒料;alkali activated steel-making slag concrete;steel-making slag
    Date: 2014-07-29
    Issue Date: 2014-10-15 14:31:10 (UTC+8)
    Publisher: 國立中央大學
    Abstract: 還原碴與氧化碴皆為電弧爐煉鋼之副產品,還原碴化學組成與水泥熟料及水淬爐石粉相近,而氧化碴經過前處理後則在某些情況下能部分取代天然粒料使用,如果能將兩者結合製作成全爐碴混凝土取代水泥與天然粒料,不僅可處理這些工業副產物,同時減少水泥及天然粒料的使用,進一步達到多重效益。
    ;Reductive slag and oxide slag are the by-products of electric arc furnace (EAF) steel-making. Reductive slag shows a chemical composition similar to cement and blast furnace slag, and can be activated with alkaline as a binder for concrete. Also, after an appropriate processing, slag aggregates can be used in certain cases to replace part or all of the natural aggregates for making concrete.
    Laboratory test results show that mixed slag consisting of 70% blast furnace slag and 30% reductive slag, with the activation by sodium silicate and sodium hydroxide, can be used as binder for producing concrete with design 28-day compressive strength in the range of 140 - 210 kgf/cm2. Electric arc furnace slag aggregates can be used to replace part or 100% of the natural aggregate in the production of alkali-activated slag concrete. It was found that the concrete made with activated slag as binder and steel-making slag as aggregate did not show adverse effects on the drying shrinkage. Also, the concrete exhibited no potential for alkali-aggregate reaction. Finally, partial replacement of the fine aggregate with the ceramic milling sludge can effectively improve the slump of alkali-activated slag concrete.
    Appears in Collections:[土木工程研究所] 博碩士論文

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