Influence of Different Factors on the Assessment of Strength of Masonry at Compression (to the question of improvement of norms on masonry constructions)

The article shows the need to adjust the normative documents on masonry due to the inconsistency of a number of GOSTs for compression testing of bricks with each other, as well as with SP 15.1330.2012 “Masonry and reinforced masonry structures”. One of the problems arose in connection with a change in the method of preparing the surface of samples for testing ceramic bricks of plastic molding for compression in GOST 530-2012, where grinding became the main way to level the surface instead of the previously adopted solution leveling method. This led to an artificial overestimation of the brick compressive strength grade. To maintain the relationship between GOSTs and SP, it is optimal to introduce in GOST 530 transition factors from the strength of polished bricks to the strength of bricks with a solution leveling surface. There is an inconsistency in the methods of testing masonry with SP 15.1330.2012 and a number of other problems. Separate borrowings from European standards are inevitable due to the large number of modern materials and technologies that came from abroad. At the same time, the work shows that the mechanical introduction of individual fragments from other norms violates the integrity of the existing system of regulatory documents.

М.K. ISHCHUK, Candidate of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.)

Research Institute of Building Constructions named after V.A. Koucherenko (TSNIISK) JSC Research Center of Construction (6, 2-nd Institutskaya Street, Moscow, 109428, Russian Federation)

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