1 research outputs found
Early-age monitoring of fresh cementitious material by acoustic emission
Concrete properties are mainly affected by the fresh state since it has a significant impact on the long-term concrete
performance. In this study, acoustic emission (AE) was applied to monitor the behavior of fresh cement paste. AE is
based on the detection of high-frequency elastic waves originating from different material sources. This highly
sensitive technique provides data that contribute to a deeper understanding of the different ongoing processes for fresh
concrete, as the possible AE sources are many. Characterization of each different source type is difficult and therefore,
a combined methodology of AE, capillary pressure in the matrix and specimen deformation was applied to monitor
the fresh cement paste