| 韩菊红,张雷顺,赵国藩.新老混凝土粘结断裂韧度计算方法探讨[J].水利学报,2002,33(7):0116-0119 |
| 新老混凝土粘结断裂韧度计算方法探讨 |
| Calculation method for adhesive fracture toughness of binding interface between new and old concrete |
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| DOI： |
| 中文关键词: 新老混凝土 粘结面 影响因素 计算模式 断裂韧度 |
| 英文关键词: binding interface between new and old concrete fracture toughness influencing factors calculation formula |
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| 摘要点击次数: 1966 |
| 全文下载次数: 79 |
| 中文摘要: |
| 本文在新老混凝土粘结试件三点弯曲切口梁断裂试验的基础上，对影响新老混凝土粘结而断裂性能的主要因素进行了显著性分析，其各因素对粘结断裂韧度影响的显著性大小依次为界面粗糙度、界面剂类型、粘结龄期、混凝土强度、混凝土粗骨料最大粒径等，并推导出新老混凝土粘结断裂韧度的多因素计算公式，可为工程设计和加固维修提供参考。 |
| 英文摘要: |
| The main factors influencing the fracture toughness of binding interface between new and old concrete are investigated by means of three-point bending test.It is found that the ranking of the factors according to the degree of effectiveness in descending order is as follows:roughness of surfaces,type of adhesive agent,age of binding,strength of concrete and maximum size of aggregate.A formula for calculation of the toughness is proposed. |
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