摘要
试验研究了水胶比、超细粉煤灰 (以下简称UFA)掺量对高性能混凝土 (以下简称HPC)钢筋握裹力的影响。结果表明当超细粉煤灰掺量一定时 ,HPC钢筋握裹力随水胶比增大而减小 ,当水胶比一定时 ,HPC钢筋握裹力随超细粉煤灰掺量的增加而减小。分析发现 ,当抗压强度相同时 ,掺UFA的HPC钢筋握裹力要大于不掺UFA混凝土钢筋握裹力。作者用回归分析方法建立了HPC钢筋握裹力与抗压强度之间的关系式 ,该关系式表明HPC钢筋握裹力随抗压强度的增大而线性增大。
The effects of water-binder ratio and content of UFA on bonding strength of HPC have been investigated. The rezults show that, at a given dosgae of UFA the bonding strength is increasing with decreasing of water-binder ratio, and at a given water-binder ratio the bonding strength is decteasing with increasing of UFA dosage. It is found by analyzing data that, when compessive strength of two concrete is in the same the bonding strength of concrete with UFA is greater than that of concrete without UFA. And the relationship between bonding strength and compressive strength has been established by using of regression method, the formula indicates that bonding strength of HPC linearly increases as increasing of HPC compressive strength.
出处
《混凝土与水泥制品》
北大核心
2003年第2期16-18,共3页
China Concrete and Cement Products
关键词
高性能混凝土
水胶比
超细粉煤灰
掺量
钢筋握裹力
Water-binder ratio
Bonding strength
Dosage of ultra-fine fly-ash
High performance concrete(HPC)
