论文部分内容阅读
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 indicator of concrete performance. In this paper, the brittleness coefficient and the characteristic length of concrete are taken as the evaluation index of the crack resistance of concrete, and the influence of the content of chopped carbon fiber and the crack resistance of concrete mixed with steel slag mixed with powder is studied. The results show that the appropriate amount of single-doped chopped carbon fiber can reduce the brittleness coefficient and the characteristic length of the concrete, and effectively improve the cracking resistance of the concrete. The pulverized steel slag can improve the composition and internal structure of the concrete and can disperse the carbon fiber and further reduce Carbon fiber reinforced concrete brittleness coefficient and characteristic length value, improve the crack resistance of carbon fiber reinforced concrete.