钢渣混凝土的抗碳化性能及寿命预测  

Carbonization Resistance and Life Prediction of Steel Slag Concrete

作　　者：王成刚[1,2] 王帅 马兵辉 汪陈林 幸飞宇 WANG Cheng-gang;WANG Shuai;MA Bing-hui;WANG Chen-lin;XING Fei-yu(School of Civil Engineering,Hefei University of Technology,Hefei 230009,China;Anhui Provincial Key Laboratory ofCivil Engineering Structure and Materials,Hefei 230009,China;Anhui Tongji Construction Group Co.,Ltd.,Hefei 230000,China)

机构地区：[1]合肥工业大学土木与水利工程学院,安徽合肥230009 [2]土木工程结构与材料安徽省重点实验室,安徽合肥230009 [3]安徽同济建设集团有限责任公司,安徽合肥230000

出　　处：《混凝土与水泥制品》2023年第3期83-86,91,共5页China Concrete and Cement Products

基　　金：安徽省自然科学基金资助项目(JZ2019AKZR0220);安徽省住房城乡建设科学技术计划项目(2020-YF40)。

摘　　要：采用钢渣石、钢渣砂分别等质量取代碎石、河砂制备了钢渣混凝土,研究了钢渣混凝土的抗碳化性能,并建立了不同保护层厚度钢渣混凝土的碳化寿命预测模型。结果表明:随着钢渣石、钢渣砂取代率的增加,试件的抗碳化性能先增强后减弱,且当钢渣石、钢渣砂取代率均为50%时,试件的抗碳化性能最好;建立的碳化寿命预测模型的精度较高,可为实际工程中钢渣混凝土结构的碳化寿命预测提供参考。Steel slag concrete was prepared by replacing gravel and river sand with steel slag stone and steel slag sand of equal quality.The carbonation resistance of steel slag concrete was studied,and the carbonation life prediction model of steel slag concrete with different protective layer thickness was established.The results show that with the increase of the replacement rate of steel slag stone and steel slag sand,the carbonation resistance of the specimen first increases and then decreases,and when the replacement rate is 50%,the carbonation resistance of the specimen is the best.The established carbonation life prediction model has high accuracy,which can provide a reference for the carbonation life prediction of steel slag concrete structures in practical engineering.

关 键 词：钢渣石 钢渣砂 混凝土 抗碳化性能 碳化寿命预测模型 

分 类 号：TU528.041[建筑科学—建筑技术科学]