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Pore structure of historic and repair Roman cement mortars to establish their compatibility by Anna Klisińska-Kopacz; Renata Tišlova; Grzegorz Adamski; Roman Kozłowski is a Arts and Humanities article available to read on EtoBox.

What is Pore structure of historic and repair Roman cement mortars to establish their compatibility about?

Mercury porosimetry was applied to the study of pore structure of the historic Roman cement mortars representative of different locations in Europe and time periods as well as different application techniques from architectural castings to in situ formed renders and profiles. Three categories of pores were found to coexist in the mortars. The finest pores, with diameters below 0.1 m, are present within the hardened aged Roman cement matrix. The larger 'air' pores, with diameters between 0.2-2 m, are due to the evaporation of the excess unbound water and restricted hydration. Pores larger than 2 m are rare and, in general, can be related to microcracking induced by shrinkage drying and mortar weathering. The mortars have rarely been found to develop a dense fine-porous microstructure characteristic of the ideal conditions of moist-curing; massive architectural castings being the only exception identified. The presence of larger 'air' pores was, in turn, almost universally observed. The investigations of the freshly prepared Roman cement mortars have revealed that the restricted hydration could be due to the exposure of the freshly laid surface to dry real-world external environments

Who reads Pore structure of historic and repair Roman cement mortars to establish their compatibility?

Author

Anna Klisińska-Kopacz; Renata Tišlova; Grzegorz Adamski; Roman Kozłowski

Publisher

Elsevier Science; Elsevier ; Elsevier Masson; Elsevier BV (ISSN 1296-2074)

Published

2010

Language

EN

Field

Arts and Humanities (Physical Sciences)