爐石混凝土耐海水性之研究

A Study of Seawater Resistance of Slag-Cement Concrete

本研究係以爐石取代部份水泥，製作爐石取代量為0－50%之爐石水泥混凝土，將其浸泡於乾濕循環之海水中進行加速試驗超過一年，於各齡期測試試體之抗壓強度、滲透性、電阻、氯離子農度、腐蝕電位及壓汞孔隙體積分佈等，試驗結果，以爐石取代量為20－30%之爐石混凝土的耐腐蝕性為最佳。

In this study, slag was used to substitute 0~50% of cement for producing slag-cement concrete. All specimens were cyclicaly immersed in synthetic seawater for more than one year. During the test, compressive strength, permeability, electrical resistance, concentration of chloride, corrosion potential and distribution of pore size were measured after certain period of time. Results show that the slag-cement concrete containing 20~30% slag has the best corrosion resistance.