ABSTRACT
ABSTRACT. The hypothesis is advanced that if concrete can be dried out so that the relative humidity in its pores is less than about 97%, expansion resulting from alkali silica reaction (ASR) will be inhibited or eliminated. The paper then goes on to explore the possibility of maintaining reinforced concrete structures that are exposed to the weather, in the necessary state of desiccation. The observations raise severe doubts as to the practicality of successfully applying the hypothesis, especially to structures that have already suffered damage from ASR.
