Abstract: A method for determining the passivating properties of a mixture (11) containing at least two components, which are cement and water, including the steps of: taking three elements, each made up of an electrically conductive material, these elements being referred to as first electrode (2), second electrode (4) and third electrode (5), fixing at least one these three electrodes on a support (3) in such a manner that they are electrically insulated reciprocally, and the mixture (11) is able to come in contact with at least one predetermined face situated on each electrode, these faces being referred to as first face (20), second face (40) and third face (50), selecting the first electrode (2) and the third electrode (5) and applying between these two electrodes, a direct current, referred to as first direct current, of predetermined intensity value, referred to as first intensity value, and predetermined polarity, referred to as first polarity, resulting in electrolytic reactions on the third electrode (

Abstract: An electrochemical cell for electrolytically contacting and electrochemically inspecting surfaces which makes electrolytic contact with the surface through a body utilizing capillary action. The capillary force between surface and body utilizing capillary action prevents the electrolyte from escaping from the cell without the use of a sealing ring. The body utilizing capillary action allows the electrolyte to flow from an open porous container and wet the surface when the electrochemical cell contacts the surface. Escape of material from the open cell is prevented by the capillary action of the container and of the tip when the electrochemical cell is lifted from the surface. The electrochemical cell is independent of the force of gravity and enables measurements to be made on surfaces of any orientation. The electrochemical cell may be used to perform a multiplicity of electrochemical investigations and processes.