Piezoelectric effect of hardened cement paste

Abstract The piezoelectric effect of hardened cement paste was studied in this paper. As compressive stress was applied on the specimen, an electrical current was observed. The electrical current increases nonlinearly with compressive stress. The average sensitivity constant reached is 1.0 × 10 −8 A/MPa. Through investigation of the variation of piezoelectric effect with absorbed water content in specimens, the mechanism of this phenomenon was analyzed. Piezoelectric effect of hardened cement paste is related to the transportation of mobile ions along with water in the hydrated cement product under stress.

[1]  Suresh Bhalla,et al.  Performance of smart piezoceramic patches in health monitoring of a RC bridge , 2000 .

[2]  Daniel J. Inman,et al.  IMPEDANCE-BASED HEALTH MONITORING OF CIVIL STRUCTURAL COMPONENTS , 2000 .

[3]  Zhuoqiu Li,et al.  A study of piezoelectric properties of carbon fiber reinforced concrete and plain cement paste during dynamic loading , 2000 .

[4]  J. Beaudoin,et al.  A.C. impedance spectroscopy (I): A new equivalent circuit model for hydrated portland cement paste , 1992 .

[5]  Sihai Wen,et al.  Piezoelectric cement-based materials with large coupling and voltage coefficients , 2002 .

[6]  Craig A. Rogers,et al.  Qualitative impedance-based health monitoring of civil infrastructures , 1998 .

[7]  H. W. Whittington,et al.  The conduction of electricity through concrete , 1981 .

[8]  F. Wittmann,et al.  On the significance of electroosmosis in hardened cement paste , 1974 .

[9]  Zongjin Li,et al.  Cement‐Based 0‐3 Piezoelectric Composites , 2004 .

[10]  G. Shaposhnikova,et al.  Electrical phenomena at interfaces , 1999, Proceedings of 1999 IEEE 13th International Conference on Dielectric Liquids (ICDL'99) (Cat. No.99CH36213).

[11]  S. Chatterji,et al.  ELECTRICAL DOUBLE LAYER, ION TRANSPORT AND REACTIONS IN HARDENED CEMENT PASTE , 1992 .

[12]  Zhuoqiu Li,et al.  The electromechanical effect of carbon fiber reinforced cement , 2002 .

[13]  Anomalous Electromechanical Behavior of Portland Cement: Electro‐osmotically‐lnduced Shape Changes , 1995 .

[14]  Electrically Induced Shape Changes in Hardened Cement Pastes and Porous Silica Gels: The Dynamic Nature of Gel Pore Structures during Water Transport , 1995 .

[15]  Shanglian Huang,et al.  Using PVDF piezoelectric film sensors for in situ measurement of stayed-cable tension of cable-stayed bridges , 1999 .

[16]  M. Saafi,et al.  Health monitoring of concrete structures strengthened with advanced composite materials using piezoelectric transducers , 2001 .

[17]  F. Wittmann.  Observation of an electromechanical effect of hardened cement paste , 1973 .

[18]  D.D.L. Chung,et al.  Cement-based materials for stress sensing by dielectric measurement , 2002 .

[19]  F. Chang,et al.  Structural health monitoring from fiber-reinforced composites to steel-reinforced concrete , 2001 .