Ultrasonic assessment of Portland cement at the early stages of hydration

被引：9
|
作者：
Gimet, N [1 ]
Fargeot, D [1 ]
Gaillard, JM [1 ]
Smith, A [1 ]
Gault, C [1 ]
Bonnet, JP [1 ]
机构：
[1] Ecole Natl Super Ceram Ind, Grp Etud Mat Hetergenes, F-87065 Limoges, France
来源：
JOURNAL OF MATERIALS SCIENCE LETTERS | 1999年 / 18卷 / 16期
关键词：
D O I：
10.1023/A:1006630215606
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A technique based on the reflection of ultrasonic waves in a semi-infinite mode was applied to a fresh Portland cement paste when it transforms from a viscous liquid to a solid phase within a few hours. The changes in the ultrasonic wave velocity allowed the detection of the cement transformation from a liquid to a solid. Shrinkage was also found to be associated with this modification. Marked changes of the reflection coefficient occurred later, from 510 to 600 min.
引用
收藏
页码：1335 / 1337
页数：3
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