| 外掺氧化镁混凝土性能试验研究 |
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| 引用本文： | 肖延亮,杨忠义. 外掺氧化镁混凝土性能试验研究[J]. 混凝土, 2007, 0(3): 72-73,77 |
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| 作者姓名： | 肖延亮 杨忠义 |
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| 作者单位： | 中国水电顾问集团公司成都勘测设计研究院,科研所,四川,成都,610072 |
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| 摘 要： | 通过采用锦屏一级水电站的原材料,对外掺氧化镁的水工混凝土性能试验研究表明,外掺氧化镁对混凝土的抗压强度略有降低,对劈拉强度、轴拉强度、弹性模量、极限拉伸值略有提高;未掺氧化镁的砂岩混凝土180d自身体积变形为-57.8个微应变,外掺4%的氧化镁可以使砂岩混凝土的自身体积变形接近0.
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| 关 键 词： | 氧化镁 抗压强度 劈拉强度 轴拉强度 自身体积变形 外掺氧化镁混凝土 性能试验研究 magnesia concrete performance study 微应变 自身体积变形 砂岩 极限拉伸值 弹性模量 轴拉强度 劈拉强度 抗压强度 水工混凝土 材料 锦屏一级水电站 |
| 文章编号： | 1002-3550-（2007）03-0072-03 |
| 修稿时间： | 2006-11-29 |
Experimental study on performance of concrete added with magnesia |
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| XIAO Yan-liang,YANG Zhong-yi. Experimental study on performance of concrete added with magnesia[J]. Concrete, 2007, 0(3): 72-73,77 |
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| Authors: | XIAO Yan-liang YANG Zhong-yi |
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| Abstract: | With raw materials of Jinping first-level hydropower station,the experimental study on performance of hydraulic concrete with magnesia shows that the compressive strength of concrete added with magnesia is descreased slightly and cleavage strength,tensile strength,modulus of elasticity,tensile strain ultimate of concrete added with magnesia are increased slightly. The autologous volumetric deformation of the sandstone concrete at 180d is -57.8 microstrain without adding magnesia and the autologous volumetric deformation of the sandrock concrete added with 4% magnesia at 180d is approach to 0. |
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| Keywords: | magnesia compressive strength cleavage strength tensile strength autologous volumetric deformation |
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