Author(s)

J. Papayianni-Papadopoulou & M. Karaveziroglou-Weber

Abstract

Temperature and moisture effects on mortars and grouts used in interventions J. Papayianni-Papadopoulou, M. Karaveziroglou-Weber Laboratory of Reinforced Concrete, Aristotle University of Thessaloniki, Greece ABSTRACT The durability of a recently restorated old masonry is closely connected with the response of its components to local climatic conditions. Since mortar is the most porous material, surface sufferings of masonry start from it. In this paper an experimental work is presented concern- ing the influence of temperature and moisture extremes on mor- tars and grouts made with traditional materials such as lime, pozzolana, and cement used as binding agents as well as sand and crushed brick used as aggregates. Six mortar and six grout compositions were prepared. Prisms (40*40*160 mm) were sub- jected to wetting-drying, boiling-drying and freezing-thawing cycles. Length changes and strength loss were measured for com- parison of mortar co

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