The first part deals with the development of criteria for the performance of stone treatment systems and for the assessment of the effectiveness of stone protecting materials. The assessment of the effectiveness of new impregnation materials was based on the comparison of the results of physical tests carried out on treated and untreated samples. A number of important criteria, which are to be optimized, have been quantitatively and qualitatively evaluated. The laboratory tests cover measurements of polymer properties, porous material properties, and impregnated porous material properties. The main aim of this project was to develop new and highly effective stone protecting and strengthening materials in collaboration with different scientific institutes and the chemical industry. -- AATA