Mathematical model for determining the optimal composition of mortars for restoration of historical monuments

The work covers the compression strength, tensile bending and adhesion of a modified mortar developed by the authors based on local gypsum for the restoration of the Ismail Samani mausoleum and the Kalyan minaret. It has been shown that the strength of the mortar is sufficient and meets the requirements of existing building codes. The recommended compositions of the modified restoration solutions based on gypsum and their strength indicators have been identified. Compositions of modified restoration solutions that contribute to an increase in their water resistance and durability have been studied. In addition, a graphical analysis of the degree of strength of mixtures has been given and mathematical models have been developed. The optimal compositions of mixtures have been determined using mathematical modeling. Based on the results obtained, conclusions have been drawn.