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阎王鼻子碾压混凝土坝，基础断层填塘及勺～“8坝段镶嵌岩内部位，采用外接MgO混凝土．借鉴国内已成工程经验，经过水泥压蒸试验确定MgO掺量为2％～4％，通过混凝土自生体积变形试验及有限元仿真分析，证明采用wtgo微膨胀混凝土对境塘混凝土防裂及改善坝体镶嵌部位应力状态有一
Yan Wang nose roller compacted concrete dam, basic fault filling pond and scoop "8 dam section inlaid rock, the use of external MgO concrete.Received from the experience of the project has been, through the cement pressure steaming test to determine the content of MgO 2% to 4% Through the test of self-generated volume deformation of concrete and finite element simulation analysis, it is proved that using wtgo micro-expansive concrete to crack the concrete of boundary pond and improving the stress state of dam inlaid part has a