RT Journal Article
T1 Salt crystallization in porous construction materialsII. Mass transport and crystallization processes
A1 López-Acevedo Cornejo, Victoria
A1 Viedma Molero, Cristóbal
A1 González García, Victoria
A1 La Iglesia, Á.
AB In order to study the processes of salt weathering of monumental stones, several samples were partially immersed in sodium, potassium and magnesium sulphate solutions which ascended through their capillary network and, eventually, crystallized. This procedure pretends to simulate the conditions in which foundations and lower walls of building structures are, within the zone of capillary rise of saline groundwater. Mass transport and the rhythmic nature of crystallization fronts inside samples reminds the Liesegang phenomenon, so they have been considered as a form of dissipative structures. The saline deposits developed on the surface of the samples were efflorescences (mirabilite and epsomite), subefflorescences (picromerite, aphthitalite and arcanite) and crusts (aphthitalite and arcanite). The most devastating effects resulted from massive crystallization inside the samples or from surface peeling due to the development of subefflorescences or crusts.
PB Elsevier Science B.V.
SN 0022-0248
YR 1997
FD 1997
LK https://hdl.handle.net/20.500.14352/57551
UL https://hdl.handle.net/20.500.14352/57551
LA eng
DS Docta Complutense
RD 8 may 2024