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HF碾压混凝土断裂韧性的初步探讨
引用本文:蒋艳宾,方坤河.HF碾压混凝土断裂韧性的初步探讨[J].武汉大学学报(工学版),1986(4).
作者姓名:蒋艳宾  方坤河
作者单位:武汉水利电力学院水利水电工程建筑及施工系 (蒋艳宾),武汉水利电力学院水利水电工程建筑及施工系(方坤河)
摘    要:本文采用三点弯曲约定的试验条件,进行高粉煤灰掺量碾压混凝土的断裂韧性试验,试验研究表明,在原材料及试验条件都相同的条件下,水胶比是影响K_(1c)的重要因素。本文引用了徐华荣高级工程师对常态混凝土断裂韧性的试验成果,并与高粉煤灰掺量碾压混凝土的K_(1c)进行对比,结果表明,在抗压强度相同的条件下,高粉煤灰掺量碾压混凝土的K_(1c)比常态混凝土K_(1c)略大,并作了微观结构分析。

关 键 词:力学性质  强度极限  韧性  断裂韧性  断裂极限强度  断裂力学  断裂试验

The Preliminary Study of Fracture Toughness of High Flyash Content Rolled Concrete
Jiang Yanbin, Fang Kunhe.The Preliminary Study of Fracture Toughness of High Flyash Content Rolled Concrete[J].Engineering Journal of Wuhan University,1986(4).
Authors:Jiang Yanbin  Fang Kunhe
Affiliation:Jiang Yanbin; Fang Kunhe
Abstract:The fracture toughness (K_(10))of high flyash content rolled concrete is investigated with the three-point bent method. It is found that the water/cementation-ratio has an important influence on the fracture toughness under the same condition of material and testing. It also shows that its fracture toughness is greater compared with that of the ordinary concrete in 2] under the same compressive strength. Its microstructural analysis is presented too.
Keywords:mechanical properties  strength limit  ductility fracture toughness  fracture limit strength  fracture mehanics  breaking test
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