Self-healing phenomena using PVA coated granules for sustainable construction

Abstract

Concrete structures are susceptible to cracking which exacerbate the durability of these structures. For this purpose, self-healing phenomena has been introduced in the past few decades. In order to apply the granulated healing material (Granule) with PVA film coating in the concrete, cracks, which were generated by drying shrinkage, were introduced to plate-shaped concrete specimens incorporating Granule with PVA film coating. Subsequently, healing efficiency was verified by test about crack, which was subjected to the water supply. As a result, it is verified that the method by using water-soluble PVA film coating for maintaining self-healing efficiency of the granulated healing material will be the original approach for sustainable concrete with self-healing capability compared with the previous method.