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为了提高混凝土抗氯离子渗透能力,在混凝土中掺入具有火山灰性的锂渣和会产生自身水化的钢渣。采用正交设计,通过RCM法测试表明,随着锂渣和钢渣掺入总量的增加,混凝土抗氯离子渗透的能力呈现先增大后减小趋势,以锂渣掺量为25%和钢渣掺量为20%时为最优掺量。在水泥水化后,锂渣参与了二次反应,细化了混凝土界面结构,同时促进了钢渣和水泥的相互水化程度,提高了混凝土抗氯离子渗透的能力。
In order to improve the ability of concrete to resist chloride ion penetration, concrete is mixed with volcanic lithium slag and steel slag which produces self-hydration. Using orthogonal design, the RCM test shows that with the increase of the total amount of lithium slag and steel slag, the ability of concrete to resist chloride ion increases firstly and then decreases. Taking the content of lithium slag as 25% and steel slag When the dosage is 20%, it is the optimal dosage. After cement hydration, lithium slag participates in the secondary reaction, refining the interface structure of concrete, promoting the degree of mutual hydration of steel slag and cement, and improving the ability of concrete to resist chloride ion infiltration.