The effect of grinding the loaded surface on the strength of masonry wall ceramic products in compression

Abstract

Determination of the most effective compression test methods for ceramic masonry products was the aim of investigation. It is necessary to clarify the testing methodology for hollow ceramic masonry products made by plastic molding, having cavities, saggings, voids on the loaded (supporting) surface. It is required to compare the results obtained with the data of foreign standards and recommend using the obtained results in domestic standards to harmonize them with European ones. The methods of testing for compression of ceramic bricks of plastic formation with three types of preparation of loaded surfaces, used in the current standard GOST8462, investigated. Statistical data on the strength of bricks obtained during tests using gaskets between the press and the brick surface made of technical felt, with preliminary grinding of the supporting surfaces, as well as using cement mortar. Based on the results obtained, recommendations for testing given, taking into account international experience.