Role of cavitation in drying cementitious materials
英文摘要：
This study aims to identify and isolate the role of properties of water with respect to the shape of the first desorption isotherm of hardened cement pastes. It has been observed that desorption occurs not only by receding meniscus but is also affected by cavitation. Classical nucleation theory was used to understand and examine parameters that influence cavitation. The results show that the sudden moisture loss at 0.3 pv psat in desorption isotherm occurs due to homogeneous cavitation. Further investigations revealed that homogeneous cavitation occurs in the part of gel porosity that is disconnected from the rest of capillary pores in the pore network.
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