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題名 | 爐石抑制海砂混凝土材料惡化之效應研究=A Study on the Effect of Slag Additament Restrains the Ocean-Sand Concrete Material Worse |
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作者 | 王金鐘; | 書刊名 | 正修學報 |
卷期 | 11 1998.07[民87.07] |
頁次 | 頁59-73 |
分類號 | 440.327 |
關鍵詞 | 爐石; 海砂混凝土材料; |
語文 | 中文(Chinese) |
中文摘要 | 本研究為瞭解爐石抑制海砂混凝土材料惡化之效應,乃分別以河砂及海砂做為細 骨材,以爐石替代水泥量,分別為20%∼80%,並設定水灰比為0.385、0.485及0.585製作抗 壓、抗拉及抗彎水泥砂漿試體,並養治3天、7天、28天及56天探討其爐石替代量、水灰比、 養治齡期與強度間的關係。由本研究可得知海砂拌和的水泥砂漿,其早期抗壓強度較高,而 晚期強度則有下降的趨勢,其中以非標準砂拌和效果最為明顯;若以50%海砂替代河砂做為 拌和細骨材,其早期抗壓強度約上升20%∼30%;添加爐石於海砂或河砂、海砂各半的水泥砂 漿,其抗壓、抗彎及抗拉強度,會隨著爐石添加量增加而增加,其中以40%∼60%爐石替代量 為最佳,但是爐石替代量過高,晚期強度會下降;在相同水灰比狀況下以海砂(標準砂及非 標準砂)拌和水泥砂漿比較,以非標準砂拌和有較高的抗壓強度,其強度約比標準砂高10% 左右。若添加爐石於海砂所拌和的水泥砂漿,其抗彎強度會隨著爐石添加量的增加而增加, 以 40%∼60%的爐石替代量為最佳;以第Ⅰ及第Ⅱ類型所拌和的海砂水泥砂漿試體做比較, 依晚期強度而言,第Ⅱ類型水泥所拌和的試體,其抗壓及抗彎強度比第Ⅰ類型水泥約高出 10%左右,其中以非標準砂所拌和的試體強度上升最大。 |
英文摘要 | This reearch wants to understand for slag additament to restrain of ocean-sand concrete shall be getting wose. To separate river-sand and ocean-sand made fine aggregate, by means of slag additament be able to substitute for cement 20%∼80%, and be able to set W/C=0.385、0.485 and 0.585 to make compressive、te nsile and bending motor test sample, and shall be curing 3、7、 28 and 56 days to search for relation of slag be able to substitute for cement、 W/C、curing time and strength. This research shall be obtain that ocean-sand motor shall have more compressive strength early, but later strength shall descend, by means of non-standard sand mixing sample is quite obvious. By means of 50% ocean-sand substitutes for river-sand to mix fine aggregate compressive strength early shall be risen 20%∼ 30%; Adds slag to ocean-sand or a half of river-sand and ocean-sand to make motor test sample, Compressive strength、bending strength and tensile strength shall be according to slag additament, by means of slag additament substitutes for cement 40%∼60% is most. But slag be able to substitute for cement is too enough,1 At the same W/C condition, ocean-sand (standard and non-standard) is mixed, non- standard ocean-sand shall have more compressive strength than standard ocean- asnd about 10%, Add slag additament to motor test sample of ocean-sand mixing, bending strength shall be according to slag additament, but 40%∼60% slag additament shall be quite obvious. Motor test sample of ocean-sand mixing shall be compared type Ⅰcement with type Ⅱcement, to make ues of type Ⅱ cement to motor test sample of ocean-sand mixing shall have more compressive and bending strength about 10%, Rising of strength is best among non-standard sand mixing. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。