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

页码：1335 / 1337

页数：3

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