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| 混凝土的酸和冻融双重腐蚀效应与破裂特征 | |
| 引用本文： | 宁宝宽,陈四利,张权,朴莹哲,胡大伟.混凝土的酸和冻融双重腐蚀效应与破裂特征[J].沈阳工业大学学报,2005,27(5):575-578. |
| 作者姓名： | 宁宝宽 陈四利 张权 朴莹哲 胡大伟 |
| 作者单位： | 1. 沈阳工业大学,建筑工程学院,沈阳,110023 2. 沈阳建盛建设监理咨询有限公司,沈阳,110004 3. 沈阳市皇姑区房产局,沈阳,110036 |
| 摘 要： | 为了研究混凝土在各种侵蚀环境条件下的力学特性，采用模拟试验的方法进行了混凝土在酸腐蚀和冻融循环共同作用下的破裂过程试验，采用高精度数码照相机实时观测混凝土试件的荷载破裂过程，探讨了不同pH值和冻融循环次数下混凝土的表面侵蚀特征和力学性能，对酸和冻融双重腐蚀下混凝土的破裂过程进行了分析，得到了一些有益的结果.为进一步分析复杂环境下混凝土的内部损伤演化规律和本构模型的建立奠定了基础. |
| 关 键 词： | 混凝土 酸腐蚀 冻融 抗压强度 破裂过程 破裂机理 |
| 文章编号： | 1000-1646(2005)05-0575-04 |
| 收稿时间： | 08 30 2004 12:00AM |
| 修稿时间： | 2004年8月30日 |
Double corrosion effects under acid and freezing and thawing erosion and fracture behavior of concrete |
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| NING Bao-kuan,CHEN Si-li,ZHANG Quan,PIAO Ying-zhe,HU Da-wei.Double corrosion effects under acid and freezing and thawing erosion and fracture behavior of concrete[J].Journal of Shenyang University of Technology,2005,27(5):575-578. | |
| Authors: | NING Bao-kuan CHEN Si-li ZHANG Quan PIAO Ying-zhe HU Da-wei |
| Affiliation: | 1. College of Architectural Engineering, Shenyang University of Technology, Shenyang 110023, China; 2. Shenyang Jiansheng Scrutiny and Consultation Ltd, Shenyang 110004, China; 3. Real estate bureau of Huanggu district, Shenyang 110036, China. |
| Abstract: | Experiments of concrete fracturing process were conducted under uniaxial compression in order to investigate the behavior of concrete under corrosive environmental conditions.Fracture process of concrete is real-time observed using digital camera of high resolution.The surface erosion feature and mechanical behavior of concrete were studied under different pH values and freezing and thawing cycles.Fracture behaviors of concrete under environmental erosion were analyzed.Some beneficial conclusions were obtained. |
| Keywords: | concrete acid erosion freezing and thawing compression strength fracture process fracture mechanism |
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