DIELECTRIC-PROPERTIES OF CEMENT MORTAR AS A FUNCTION OF WATER-CONTENT

被引：48

作者：

BERG, A ^{[1
]}

NIKLASSON, GA ^{[1
]}

BRANTERVIK, K ^{[1
]}

HEDBERG, B ^{[1
]}

NILSSON, LO ^{[1
]}

机构：

[1] CHALMERS UNIV TECHNOL,DEPT BLDG MAT,S-41296 GOTHENBURG,SWEDEN

来源：

JOURNAL OF APPLIED PHYSICS | 1992年 / 71卷 / 12期

关键词：

D O I：

10.1063/1.350488

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We have studied the dielectric properties of cement mortars, with water/cement ratios between 0.5 and 0.78, in the frequency range 10(-3) less-than-or-equal-to f less-than-or-equal-to 10(7) Hz. The dielectric response can be modeled by an equivalent circuit incorporating electrode polarization and bulk conduction. The bulk dc conductance and the amplitude of a constant phase element describing the dispersive part of the bulk response display characteristic dependencies on the water content of the samples. The power-law exponent of the constant phase element is independent of water content and can be related to the fractal dimension of the pore surfaces.

引用

页码：5897 / 5903

页数：7

共 58 条

[1] DEVELOPMENT OF THE FINE POROSITY AND GEL STRUCTURE OF HYDRATING CEMENT SYSTEMS [J].

ALLEN, AJ ;

OBERTHUR, RC ;

PEARSON, D ;

SCHOFIELD, P ;

WILDING, CR .

PHILOSOPHICAL MAGAZINE B-PHYSICS OF CONDENSED MATTER STATISTICAL MECHANICS ELECTRONIC OPTICAL AND MAGNETIC PROPERTIES, 1987, 56 (03) :263-288

[2]

Bars J.P, 1982, MATER CONSTRUCC, V15, P33

[3]

BELL JR, 1963, ASTM P, V63, P997

[4] PERCOLATION OF PHASES IN A 3-DIMENSIONAL CEMENT PASTE MICROSTRUCTURAL MODEL [J].

BENTZ, DP ;

GARBOCZI, EJ .

CEMENT AND CONCRETE RESEARCH, 1991, 21 (2-3) :325-344

[5] PERCOLATION EFFECTS IN THE ELECTRICAL-CONDUCTIVITY OF POROUS CEMENT MORTAR [J].

BRANTERVIK, K ;

BERG, A ;

NIKLASSON, GA ;

HEDBERG, B ;

NILSSON, LO .

EUROPHYSICS LETTERS, 1990, 13 (06) :549-554

[6] CIRCUIT MODELS FOR CEMENT BASED MATERIALS OBTAINED FROM IMPEDANCE SPECTROSCOPY [J].

BRANTERVIK, K ;

NIKLASSON, GA .

CEMENT AND CONCRETE RESEARCH, 1991, 21 (04) :496-508

[7] Calculation of various physics constants in heterogenous substances I Dielectricity constants and conductivity of mixed bodies from isotropic substances [J].

Bruggeman, DAG .

ANNALEN DER PHYSIK, 1935, 24 (07) :636-664

[8]

CALLEJA J, 1953, J AM CONCRETE I, V25, P249

[9]

CALLEJA J, 1952, J ACI, V23, P525

[10] DIELECTRIC-PROPERTIES OF PORTLAND-CEMENT PASTE AS A FUNCTION OF TIME SINCE MIXING [J].

CAMP, PR ;

BILOTTA, S .

JOURNAL OF APPLIED PHYSICS, 1989, 66 (12) :6007-6013

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