(The) ultrasonic and acoustic emission measurements of hydration in calcium sulphate hemihydrate = 반수석고의 수화과정에서 초음파와 Acoustic emission 의 측정

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The hydration of calcium sulphate hemihydrate has been measured with temperature, ultrasonic velocity, attenuation and acoustic emission for the water to gypsum, W/G, ratio 0.50-0.80. The rate equation with the factor of W/G ratio has been derived and investigated the reliability with experimental results. In general the ultrasonic methods were more sensitive than the temperature measurements. The velocity for the W/G ratio $<0.70$ had three stages, while no distinctive stages was observed for the W/G ratio $> 0.70$. The change of ultrasonic attenuation was noticeable after the completion of hydration detected by temperature and velocity measurements. The rapid increment of acoustic emission was attributed to the highest rate of hydration.
Advisors
Kim, Ho-Chul김호철
Description
한국과학기술원 : 물리학과,
Publisher
한국과학기술원
Issue Date
1985
Identifier
64454/325007 / 000831251
Language
eng
Description

학위논문(석사) - 한국과학기술원 : 물리학과, 1985.2, [ [iii], 69 p. ]

URI
http://hdl.handle.net/10203/48094
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=64454&flag=dissertation
Appears in Collection
PH-Theses_Master(석사논문)
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