Factors Influencing the Electrical Properties of Ettringite Binders as Repair Materials

Ettringite binders are increasingly being used as rapid-repair materials to extend the service-life of reinforced concrete where rebar corrosion has caused deterioration and spalling. The transport properties these ettringite important in assessing longevity such repairs. This study demonstrates how electrical can be interpreted obtain meaningful results related properties. In addition pore solution chemistry, degree saturation calcium sulfoaluminate (CSA) cement was found an factor since have greater self-desiccation at earlier ages than ordinary portland (OPC). After one day hydration, suggested that CSA containing mixtures had network connectivity OPC mixture this attributed varying phase compositions. Thermodynamic modelling confirmed a high amount formation system lower capillary water porosity associated with this. internal relative humidity should considered when using measurements evaluate their it increases total resistivity.