Fig. 3From: Towards a better understanding of hot-mixed mortars for the conservation of historic buildings: the role of water temperature and steam during lime slakingSEM images of parent quicklime and of portlandite crystals in limes slaked with the different methods. a CaO crystals in quicklime. b Lime slaked in 1:3 lime:water ratio at 20 °C. c Lime slaked in 1:3 lime:water ratio at 75 °C. d Steam-slaked lime. The left and right columns show a low and high magnification, respectively. Insets in b and d show details of individual crystalsBack to article page