复掺矿渣微粉与粉煤灰配制尾矿砂混凝土及其应用
China Concrete and Cement Products(2012)
Abstract
分别以30%、40%、50%和60%的铁矿尾矿细砂取代天然砂,并复掺矿渣微粉和粉煤灰,配制了C20、C30和C40预拌混凝土,试验研究了混凝土和易性、强度和抗氯离子渗透性等性能。结果表明,以30%、40%和50%铁矿尾矿细砂取代天然砂的各强度等级混凝土和易性均能满足要求;在60%取代率时,混凝土和易性较差,但强度仍能满足要求;50%取代率时,混凝土抗氯离子渗透能力与基准混凝土相当。
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Key words
Chloride ion permeability resistance,Ore tailings sand(OTS),Workability,Ready-mixed Concrete,Substitution ratio
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