Resumen
Uno de los principales daños de mezclas asfálticas in situ ocurre cuando se separa el ligante asfáltico del agregado pétreo debido a la presencia de agua. Este fenómeno se identifica con el nombre de stripping. A pesar del alto número de investigaciones realizadas, este fenómeno y las causas que lo generan no han sido totalmente entendidas e identificadas. El artículo presenta los resultados de un estudio experimental ejecutado con el fin de evaluar la influencia que tiene el ligante asfáltico en el fenómeno, debido sólo al efecto del agua. Para tal fin se realizaron ensayos de resistencia bajo carga monotónica en tracción indirecta sobre dos mezclas de concreto asfáltico fabricadas con dos ligantes diferentes (CA 80-100 y CA 60-70). Como conclusión general se reporta que la interface ligante asfáltico-agregado pétreo se afecta por el cambio en la consistencia que experimentan los cementos asfálticos en presencia del agua.
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