Los nanotubos de carbono como nueva alternativa de aplicación para mejorar la resistencia a la fatiga o reducir fisuramiento en diseño de pavimentos rígidos con concreto hidráulico

Abstract

Abstract: This research is a contribution to the development of nanotechnology science, incorporating new materials in the design of concrete for rigid pavements, using multiple wall carbon nanotubes (NTCPM), dispersing agents (AD) based on hydroxylated polymers (PHs) and sodium naphthalene sulfonate (NSS) to be emptied into the cement paste by ultrasonic dispersion, being able to increase the modulus of rupture by up to 46.70% for concrete modified with PHs-f +% NCPM and 62.61% for those modified with NSS-f +% NCPM,, also confer electrical properties being able to measure resistivity and electrical conductivity in a static and dynamic state, and the capacity to store direct current, facts that leads to think that in a future can help to evaluate the structural state of concrete by the passage of time or by a seismic event. In order to establish the best performance conditions of the NTCPM in the concrete, evaluation curves were developed and the application of a methodology capable of determining the optimal concentration value of the NTCPM with the AD PHs or NSS in the concrete desig.