CHARACTERISTICS OF EXPANSIVE PRESSURE OF AN EXPANSIVE DEMOLITION AGENT AND THE DEVELOPMENT OF NEW PRESSURE TRANSDUCERS
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- HARADA Tetsuo
- THE JAPAN SOCIETY OF CIVIL ENGINEERS
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- SOEDA Koichi
- THE JAPAN SOCIETY OF CIVIL ENGINEERS
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- IDEMITSU Takashi
- THE JAPAN SOCIETY OF CIVIL ENGINEERS
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- WATANABE Akira
- THE JAPAN SOCIETY OF CIVIL ENGINEERS
Bibliographic Information
- Other Title
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- 静的破砕剤の膨張圧測定法と膨張圧の諸性質
- セイテキ ハサイザイ ノ ボウチョウアツ ソクテイホウ ト ボウチョウアツ ノ
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Abstract
Expansive demolition agents have been widely used to demolish rocks and concrete structures. To design the demolition works using expansive demolition agents rationally, it is important to estimate the expansive pressure exactly and to determine its action on the inner surface of a borehole. The authors have developed new pressure transducers which can directly measure the expansive pressure in a borehole. Several variables affecting the nature of expansive pressure in a borehole were investigated with the transducers. As a result, we determined the following: 1) Expansive pressure is transmitted in a manner similar to that of fluid. 2) The influence of the physical restraint of surrounding materials is very small. 3) The expansive pressure depends on thermal conditions including ambient temperature, but the relationship between expansive pressure and the degree of hydration of CaO is plotted on the same curve without dependence on temperature.
Journal
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- Doboku Gakkai Ronbunshu
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Doboku Gakkai Ronbunshu 1993 (478), 91-100, 1993-11-20
Japan Society of Civil Engineers
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Details 詳細情報について
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- CRID
- 1390001205308239744
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- NII Article ID
- 130003800322
- 10003878596
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- NII Book ID
- AN10014020
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- ISSN
- 18827187
- 02897806
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- NDL BIB ID
- 3852958
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed