Determination of SSD condition of fine aggregates using AC impedance spectroscopy

The objective of this study is to develop a new method for determining the SSD condition of fine aggregates using AC impedance spectroscopy. This method is non-destructive, more effective and accurate than the traditional practice. Impedance and admittance of various fine aggregates with different m...

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Bibliographic Details
Published in:Materials and structures 2013-06, Vol.46 (6), p.911-920
Main Authors: Lin, Ping-Ju, Chuang, Ying-Ji
Format: Article
Language:English
Subjects:
Aggregates
Aggregates and other concrete constituents
Applied sciences
Building construction
Building Materials
Buildings. Public works
Cement concrete constituents
Civil Engineering
Electrical impedance
Electrical resistivity
Engineering
Exact sciences and technology
Frequency ranges
Impedance spectroscopy
Machines
Manufacturing
Materials
Materials Science
Mathematical analysis
Moisture content
Nondestructive testing
Original Article
Processes
Solid Mechanics
Strength of materials (elasticity, plasticity, buckling, etc.)
Structural analysis. Stresses
Theoretical and Applied Mechanics
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Summary:The objective of this study is to develop a new method for determining the SSD condition of fine aggregates using AC impedance spectroscopy. This method is non-destructive, more effective and accurate than the traditional practice. Impedance and admittance of various fine aggregates with different moisture contents were measured within the frequency range between 1 Hz and 1 kHz. The results were examined and analyzed, and two linear correlations were observed. The first linear relationship is between complex resistivity and moisture content for fine aggregate when its moisture content is lower than its absorption capacity. The second linear relationship is between complex conductivity and moisture content for fine aggregate when its moisture content is higher than its absorption capacity. Therefore formulas can be generated for calculating the absorption capacity of a specific fine aggregate when the value of moisture content is given.
ISSN:1359-5997
1871-6873
DOI:10.1617/s11527-012-9943-x