Figure 5
From: Novel microcapsules for internal curing of high-performance cementitious system
(A) SEM images of microcapsules fabricated using different polymer doses: (a) 1%; (b) 3%; (c) 5%; and (d) 7%; preparation conditions: stirring rate: 200 rpm, PVA concentration in outer water phase: 0.5%. (B) water release time for different microcapsules shell thickness.
