钢渣-碳纤维复相导电混凝土抗裂性研究  

Study on Crack Resistance of Steel Cinder-Carbon Fibre Conductive Concrete

作　　者：许孝春[1] 蓝文坚 李晓目[1] 

机构地区：[1]孝感学院城市建设学院,湖北孝感432000 [2]广西水电科学研究院,广西南宁530021

出　　处：《孝感学院学报》2009年第3期78-81,共4页JOURNAL OF XIAOGAN UNIVERSITY

摘　　要：抗裂性是衡量混凝土性能的重要指标。文章以混凝土脆性系数与特征长度作为混凝土抗裂性评价指标,研究了短切碳纤维掺量、复掺粉磨钢渣掺量混凝土抗裂性的影响。结果表明,适量单掺短切碳纤维可降低混凝土的脆性系数和特征长度值,有效改善混凝土的抗裂性能;粉磨钢渣可改善混凝土的组成和内部结构,对碳纤维可起到分散作用,进一步降低碳纤维混凝土的脆性系数和特征长度值,提高碳纤维混凝土的抗裂性能。Crack resistance is an important index of evaluating concrete performance. Using brittlesness coefficient and characteristic length as evaluation index, we study the effect of short carbon fiber adulterate amounts and ground steel cinder adulterate amounts on concrete crack resistance. The results showed that mixing short carbon fiber moderately can reduce concrete＇s brittleness coefficient and characteristic length and improve the crack resistance of concrete effectively. Ground slog can improve the constitution and internal structure of concrete, disperse carbon fire, and help to decline brittleness coefficient and characteristic length of carbon fiber concrete and then improve the crack resistance of high carbon fiber.

关 键 词：碳纤维 磨细钢渣 抗裂性能 

分 类 号：TU528[建筑科学—建筑技术科学]