Optimization of repair mortar used in masonry restoration

  • Aleksey Kharitonov Department of Technology of Building Materials and Metrology, St. Petersburg State University of Architecture and Civil Engineering, Saint-Petersburg,
  • Olga Smirnova Department of Constructing Mining Enterprises and Underground Structures, Saint-Petersburg Mining University, Saint-Petersburg
Keywords: stone restoration, composition optimization, multicomponent restoration mortar, vapour permeability, lime mortar


Deterioration of ancient masonry is a contemporary problem. The initial properties of the masonry material that determine its durability, deterioration and degree of preservation have led to the appearance of different approaches towards choosing the technology for restoring masonry. The success of any restoration is largely determined by its compatibility with the original materials used, which requires, as a rule, a complex and long process of selecting their composition. One of the main technological approaches in the science of restoration materials is to search for the optimal composition of the material within a given time limit. This paper presents an approach which uses a large number of variables within strict boundary conditions. The solution to this problem can be found in the field of mathematical modelling using experiment planning methods. The paper presents a method developed for mortar optimization which makes it possible to obtain the desired result within a relatively short period of time.


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