Application of A.C. impedance techniques in studies of porous cementitious materials: (I): Influence of solid phase and pore solution on high frequency resistance

✍ Scribed by Ping Gu; Zhongzi Xu; Ping Xie; J.J. Beaudoin

• Publisher: Elsevier Science
• Year: 1993
• Tongue: English
• Weight: 420 KB
• Volume: 23
• Category: Article
• ISSN: 0008-8846
• DOI: 10.1016/0008-8846(93)90003-r

✦ Synopsis

The influence of ionic concentration of pore solution and matrix porosity on high frequency resistance (HFR) of hydrated cement paste were carefully studied. A new relation between HFR and porosity has been derived and its validity demonstrated by a series of experiments. A better description of the intrinsic value and physical meaning of HFR is presented. A convenient means of characterizing microstructural development in hydrating cement or concrete systems is provided by the A.C. impedance technique.