conservation image (1998–2009) Lime Mortars and Plasters

FESEM photomicrographs of a) oven dried slaked lime putty showing agglomeration of platelike Ca(OH)2nanocrystals, and b) commercial dry hydrated lime also displaying extensive agglomeration. In both a) and b), randomly oriented and crystallographically oriented aggregates are present. Details of representative oriented aggregate of Ca(OH)2 nanoparticles attached by the (0001) planes are seen in c) and randomly oriented aggregates in freeze-dried slaked lime particles are seen in d). Photo: Carlos Navarro-Rodriguez.