The Adhesion Properties of Mortars in Relation with Microstructure

Autor:	S. Papaioannou, C. Tachos, R. Argyropoulou, N. Markantonis
Rok vydání:	2014
Předmět:	Cement Brick Materials science business.industry Surfaces and Interfaces General Chemistry Adhesion Masonry Microstructure Durability Surfaces Coatings and Films Mechanics of Materials Ultimate tensile strength Materials Chemistry Mortar Composite material business
Zdroj:	The Journal of Adhesion. 91:505-517
ISSN:	1545-5823 0021-8464
Popis:	The interaction between masonry units and mortar is a crucial factor for the quality of a wall. The most important factor is the adhesion between bricks and mortar in order to construct a masonry wall with adequate strength, good impermeability, and durability. In this work mortars were produced with various cement/lime/aggregates ratio. The adhesion properties of the mortars with clay bricks were tested with a simplified tensile/tear testing measurement. In order to investigate the adhesion properties in relation with microstructure the mortars were characterized with X-ray diffraction and were further investigated with scanning electron microscopy and stereoscopy. It was found that adhesion is favored by the formation of a Si–Al matrix with a low Ca content in the brick/mortar interface and the formation of fine Ca–Al–Si phases which can penetrate into the brick.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::64700eb7de615e33fa077c4a78a13a2b https://doi.org/10.1080/00218464.2014.931228 Zobrazit plný text záznamu