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Kanno, J., Richardson, N., Phillips, J., Kupwade-Patil, K., Mainardi, D.S. and Cardenas, H.E. (2009) Modeling and Simulation of Electromutagenic Processes for Multiscale Modification of Concrete. Journal of Systemics, Cybernetics and Informatics, 7, 69-74.

has been cited by the following article:

• TITLE: Electrokinetic Nanoparticle Treatment Success Factors

  AUTHORS: Henry E. Cardenas, Huayuan Zhong

  KEYWORDS: Hardening Cement, Electrokinetic Treatment, Nanoparticle, Stability, Suspension, Porosity, Strength

  JOURNAL NAME: Materials Sciences and Applications, Vol.11 No.11, November 30, 2020

  ABSTRACT: Electrokinetic pozzolanic nanoparticle treatments have been reported in the literature to achieve rapid porosity reductions and deeply penetrating strength enhancement of cement and concrete. The high electric fields required to achieve these results have tended to be accompanied by particle suspension instability. Coagulation is an instability that can limit the efficiency and effectiveness of a treatment by removing particles from suspension. The current study examines how electro-coagulation impacts electrokinetic treatment effectiveness. The nano-pozzolan suspension used in this study was Nalco 1056, alumina-coated silica (24-nm). A threshold electric field strength of 0.4 V/cm was identified for avoiding direct electro-coagulation. Treatments conducted at this threshold value exhibited a 50% strength increase. Treatments conducted above this threshold value exhibited significant particle electro-coagulation losses and strength increases of only 25%. This study found that electro-coagulation was influenced by the electric field strength, through a combination of particle crowding at pore entrances and pH shifts as driven by electrolysis.