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改性环氧修复剂修复潮湿环境下混凝土裂缝的固化时间影响 被引量:1
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作者 刘丽秋 《水利科学与寒区工程》 2023年第9期24-27,共4页
利用室内试验的方式,探讨了固化时长对不同宽度衬砌混凝土裂缝的修复效果。试验结果显示,修复之后混凝土试件的抗压强度、抗折强度和渗透性均有显著提升。结合试验结果和工程的经济性,建议在工程实践中选择9 d固化时长。
关键词 衬砌裂缝 裂缝修复 环氧修复剂 固化时长
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Relationship between solid/liquid interface and crystal orientation for pure magnesium solidified in fashion of cellular crystal 被引量:2
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作者 常国威 陈淑英 +2 位作者 周聪 岳旭东 齐义辉 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2010年第2期289-293,共5页
The relationship between the solid/liquid interface and the crystal orientation for pure magnesium,which grows in fashion of cellular crystal in unidirectional solidification,was investigated.The results show that the... The relationship between the solid/liquid interface and the crystal orientation for pure magnesium,which grows in fashion of cellular crystal in unidirectional solidification,was investigated.The results show that the energy of the solid/liquid interface is the lowest during cellular crystal growth of pure magnesium;and the solid/liquid interface is covered by the basal face{0001}and by the crystal face made up of three atoms located at the orientation{0001}0100and two atoms located at the inner of magnesium crystal cell.The strongest bond is formed in the direction of 61.9°viating from the growth direction,and the second strong bond is formed in the directions of 8.5°d 47.7°espectively,deviating from the growth direction.The angle between the basal face{0001} and the growth direction is 61.9°he theoretical analysis results are basically consistent with the experimental results from SUSUMU et al. 展开更多
关键词 magnesium solidification process crystal growth crystal orientation
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