Zobrazeno 1 - 8
of 8
pro vyhledávání: '"J. D. Shane"'
Publikováno v:
Journal of Materials in Civil Engineering. 17:586-594
This paper discusses the interpretation of electrical conductivity measurements in concrete to assess water penetration. Specifically, a series of finite element simulations were performed to develop an analytical function that relates the measured e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::47d69992529df7e561fd26349bb62460
https://doi.org/10.1061/(asce)0899-1561(2005)17:5(586)
https://doi.org/10.1061/(asce)0899-1561(2005)17:5(586)
Publikováno v:
Journal of the American Ceramic Society. 83:1137-1144
The electrical conductivity of portland cement mortars was determined experimentally as a function of the volume fraction of sand and the degree of hydration. The results were analyzed using theoretical models that represent the mortars as three-phas
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7ac6a944e8970b8c88ca36d6b239018d
https://doi.org/10.1111/j.1151-2916.2000.tb01344.x
https://doi.org/10.1111/j.1151-2916.2000.tb01344.x
Publikováno v:
Cement and Concrete Research. 28:1737-1751
This paper presents a systematic study of the features seen in typical Nyquist plots (-imaginary vs. real impedance) for cement-paste/steel systems and discusses the assignment of each feature to its appropriate origin, e.g., bulk, contact, interface
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::325ec21055b5a8d412a7abecb5f92985
https://doi.org/10.1016/s0008-8846(98)00156-2
https://doi.org/10.1016/s0008-8846(98)00156-2
Publikováno v:
Advances in Cement Research. 10:143-150
Impedance spectroscopy is a powerful technique for characterizing the frequency-dependent electrical behaviour of cement-based materials and interfaces, given that certain experimental limitations—machine limitations, stray imittances (e.g. from ca
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::35370e800c7ff0f348dae88b1cb514f0
https://doi.org/10.1680/adcr.1998.10.4.143
https://doi.org/10.1680/adcr.1998.10.4.143
Autor:
Thomas O. Mason, S. J. Ford, J.-H. Hwang, Hamlin M. Jennings, G. M. Moss, R. A. Olson, J. D. Shane
Publikováno v:
Advanced Cement Based Materials. 5:41-48
Dielectric amplification (dielectric constants >80) is observed in cement pastes at early ages. Standard nonlinear least squares fitting routines yield artificially large “capacitances” when constant phase elements are employed. Instead, capacita
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::30944a77c66b7fc85b35d6ada8527d6f
https://doi.org/10.1016/s1065-7355(96)00009-0
https://doi.org/10.1016/s1065-7355(96)00009-0
Publikováno v:
SP-189: High-Performance Concrete Research to Practice.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::48253845d677952136289142b454ecac
https://doi.org/10.14359/5860
https://doi.org/10.14359/5860
Autor:
S. J. Ford, Edward J. Garboczi, Thomas O. Mason, Doreen D. Edwards, Jin Ha Hwang, J. D. Shane, G. Hsieh
Publikováno v:
MRS Proceedings. 411
Using resistor-capacitor networks, sources of experimental artifacts in impedance spectroscopy were investigated, such sources include machine limitations, rig/cabling contributions at high frequencies, and artifacts due to high impedance reference e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a8c3bb807eb34ab951a07560ed7185c1
https://doi.org/10.1557/proc-411-3
https://doi.org/10.1557/proc-411-3
Autor:
G. M. Moss, B. J. Christensen, J. D. Shane, R. T. Coverdale, Hamlin M. Jennings, Edward J. Garboczi, Thomas O. Mason, R. A. Olson
Publikováno v:
MRS Proceedings. 370
There has been much recent progress on the application of impedance spectroscopy (IS) to the study of microstructure and transport in cement-based materials. The IS spectrum allows for the precise determination of bulk resistance, which is a measure
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::41cd3045ea40b9b94bbe86c0243370cf
https://doi.org/10.1557/proc-370-255
https://doi.org/10.1557/proc-370-255