Application of the dielectric measurement for non-destructive test of mortar

被引：2

作者：

Yagihara, S ^{[1
]}

Shinyashiki, N ^{[1
]}

Hayashi, Y ^{[1
]}

Asano, M ^{[1
]}

Shiotsubo, M ^{[1
]}

Kato, Y ^{[1
]}

Uomoto, T ^{[1
]}

Arino, M ^{[1
]}

Tokunaga, T ^{[1
]}

Noto, K ^{[1
]}

Tsuda, S ^{[1
]}

Kimura, W ^{[1
]}

机构：

[1] Tokai Univ, Sch Med, Dept Phys, Hiratsuka, Kanagawa 2591292, Japan

来源：

NON-DESTRUCTIVE TESTING IN CIVIL ENGINEERING 2000: SEIKEN SYMPOSIUM NO. 26 | 2000年

关键词：

dielectric relaxation; time domain reflectometry (TDR); hydration; free water; structured water; porosity; compressive strength; calcium silicate hydrate (C-S-H); cement;

D O I：

10.1016/B978-008043717-0/50008-8

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Two kinds of dielectric relaxation measurements were performed to study the water structure and the compressive strength of cement paste and mortal. Dielectric relaxation spectra obtained for cement paste and mortal show that the relaxation time of the process due to the orientation of structured water clearly depends on the curing time. The free water content obtained from the dielectric relaxation measurement represents the porosity of mortal cured in water. The compressive strength was expressed by the dielectric constant obtained from the measurement. These results suggest that the dielectric method is applicable to non- or less-destructive test for concrete structures.

引用

页码：79 / 86

页数：4

共 21 条

[1] DIELECTRIC SPECTRA OF SOME COMMON SOLVENTS IN THE MICROWAVE REGION - WATER AND LOWER ALCOHOLS [J].

BARTHEL, J ;

BACHHUBER, K ;

BUCHNER, R ;

HETZENAUER, H .

CHEMICAL PHYSICS LETTERS, 1990, 165 (04) :369-373

[2] SOLIDIFICATION OF CEMENT [J].

DOUBLE, DD ;

HELLAWELL, A .

SCIENTIFIC AMERICAN, 1977, 237 (01) :82-&

[3] HYDRATION OF PORTLAND-CEMENT [J].

DOUBLE, DD ;

HELLAWELL, A .

NATURE, 1976, 261 (5560) :486-488

[4]

Hilhorst M. A., 1998, DIELECTRIC CHARACTER

[5]

Hill N. E., 1969, Dielectric Properties and Molecular Behaviour

[6] HIGHLY REACTIVE BETA-DICALCIUM SILICATE .2. HYDRATION BEHAVIOR AT 25-DEGREES-C FOLLOWED BY SI-29 NUCLEAR-MAGNETIC-RESONANCE [J].

ISHIDA, H ;

OKADA, Y ;

MITSUDA, T .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1992, 75 (02) :359-363

[7]

LYSE I, 1925, P ASTM 32 II

[8] THE STRUCTURE OF WATER AND METHANOL IN P-DIOXANE AS DETERMINED BY MICROWAVE DIELECTRIC-SPECTROSCOPY [J].

MASHIMO, S ;

MIURA, N ;

UMEHARA, T ;

YAGIHARA, S ;

HIGASI, K .

JOURNAL OF CHEMICAL PHYSICS, 1992, 96 (09) :6358-6361

[9]

Miura N, 1998, J AM CERAM SOC, V81, P213

[10]

MIURA N, 1995, BIOPOLYMERS, V36

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