La resistividad eléctrica como parámetro de control del hormigón y de su durabilidad
Abstract
The need to estimate the durability of concrete has led to the search for a test able to analyze and quantify all of the phases of the process, including the production of concrete, the curing and the hardening. The electric resistivity, as the inverse of the conductivity-diffusivity, is a property of concrete that allows its non destructive monitoring, and is thus accessible to selfcontrol. The resistivity is an indicator of the setting and the mechanical strength, of the degree of saturation of the concrete, hence of the degree of curing and of the permeability or resistance to the ingress of aggressive substances. It is also directly related to the velocity of corrosion as it indicates the degree of humidity of the concrete. Due to the above, the resistivity is a parameter that allows to correlate the microstructure to the performance of durable concrete; this paper describes the fundamentals and its possibilities
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References
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