| 摩擦对水泥基材料收缩开裂的影响 |
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| 引用本文： | 赵志勇,朱,涵,李浩然等.摩擦对水泥基材料收缩开裂的影响[J].低温建筑技术,2014(1):4-7. |
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| 作者姓名： | 赵志勇 朱 涵 李浩然等 |
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| 作者单位： | [1]天津大学建筑工程学院,天津300072 [2]天津大学滨海土木工程结构与安全教育部重点实验室,天津300072 |
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| 基金项目： | 国家自然科学基金项目（51078261） |
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| 摘 要： | 外方内圆偏心约束法是研究水泥基材料抗裂性能的有效方法，文中采用数值分析和试验分析验证了外方内圆偏心约束方法的底板摩擦力对净浆和砂浆收缩开裂影响的问题。结果表明，模具底板摩擦力的存在能够缩短水泥净浆或砂浆收缩的开裂时间，并且水灰比越大，具有底板摩擦力的试件开裂越快。
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| 关 键 词： | 摩擦力 收缩开裂 水泥净浆 砂浆 |
STUDY ON THE AFFECTION OF FRICTION ON THE CEMENT PASTE AND MORTAR SHRINKAGE CRACKING |
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| ZHAO Zhi - yong,ZHU Han,LI Hao - ran,XUE Kai.STUDY ON THE AFFECTION OF FRICTION ON THE CEMENT PASTE AND MORTAR SHRINKAGE CRACKING[J].Low Temperature Architecture Technology,2014(1):4-7. |
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| Authors: | ZHAO Zhi - yong ZHU Han LI Hao - ran XUE Kai |
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| Affiliation: | 1. Department of Civil Engi. ,Tianjin Univ. ,Tianjin 300072, China ;2. Key Laboratory of Coast Civil Structure Safety ( Tianjin Univ. ), Ministry of Edueation, Tianjin 300072, China) |
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| Abstract: | The outer square and inner circle eccentric constraint method is an effective way to study the anti-cracking performance of cement-based materials. For the question of friction in the testing proce- dures ,using ANSYS with theoretical numerical analysis, outer square and inner circle eccentric constraint method is used to verify friction＇ s effect on different water-cement ratio of cement paste and mortar. The results show that the presence of friction can reduce cement paste or mortar specimens with friction cracks quickly as the water-cement ratio increases. shrinkage cracking time, the |
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| Keywords: | friction shrinkage cracking cement paste mortar |
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