{"title":"硬化水泥浆体的最大阻尼(hcp)在- 90°C区域:一个机械松弛过程","authors":"Xuejin Xu, Max Josef Setzer","doi":"10.1016/S1065-7355(96)00006-5","DOIUrl":null,"url":null,"abstract":"<div><p>The dependence on frequency of the damping maximum of hardened cement paste (hcp) in the region of −90°C has been analysed in a frequency range between 1 kHz and 9 kHz. The bending vibration of an hcp beam has been induced and the eigenfrequency and damping measured. After the Arrhenius-equation the activation energy was calculated. The dispersion of the eigenfrequency and the damping maximum at the same temperature indicate a mechanical relaxation process. It can be attributed to interaction between the pore ice and the internal solid surface of hcp.</p></div>","PeriodicalId":100028,"journal":{"name":"Advanced Cement Based Materials","volume":"5 3","pages":"Pages 69-74"},"PeriodicalIF":0.0000,"publicationDate":"1997-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S1065-7355(96)00006-5","citationCount":"1","resultStr":"{\"title\":\"Damping maximum of hardened cement paste (hcp) in the region of −90°C: A mechanical relaxation process\",\"authors\":\"Xuejin Xu, Max Josef Setzer\",\"doi\":\"10.1016/S1065-7355(96)00006-5\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>The dependence on frequency of the damping maximum of hardened cement paste (hcp) in the region of −90°C has been analysed in a frequency range between 1 kHz and 9 kHz. The bending vibration of an hcp beam has been induced and the eigenfrequency and damping measured. After the Arrhenius-equation the activation energy was calculated. The dispersion of the eigenfrequency and the damping maximum at the same temperature indicate a mechanical relaxation process. It can be attributed to interaction between the pore ice and the internal solid surface of hcp.</p></div>\",\"PeriodicalId\":100028,\"journal\":{\"name\":\"Advanced Cement Based Materials\",\"volume\":\"5 3\",\"pages\":\"Pages 69-74\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1997-04-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1016/S1065-7355(96)00006-5\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Advanced Cement Based Materials\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S1065735596000065\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Advanced Cement Based Materials","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1065735596000065","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Damping maximum of hardened cement paste (hcp) in the region of −90°C: A mechanical relaxation process
The dependence on frequency of the damping maximum of hardened cement paste (hcp) in the region of −90°C has been analysed in a frequency range between 1 kHz and 9 kHz. The bending vibration of an hcp beam has been induced and the eigenfrequency and damping measured. After the Arrhenius-equation the activation energy was calculated. The dispersion of the eigenfrequency and the damping maximum at the same temperature indicate a mechanical relaxation process. It can be attributed to interaction between the pore ice and the internal solid surface of hcp.
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