Evaluation Of Surface And Fracture Grouting Reinforcement Materials For Murals Of Wet Areas In Southern China

Climatic and environmental conditions are one of the key factors affecting the preservation of murals.Compared with the north,the murals in the south of China are in relatively small stock and there are few relevant protection cases.However,the climatic conditions in the south and the north of China are different,and the murals in the wet areas in the south are quite different from the murals in the dry areas in the north.The wet environmental conditions are not conducive to the protection of the murals.Are commercially available protective materials that have been used in the northwest as well as in the wet south?For the above problems,to make up for the lack of research on mural protection materials in wet areas of southern China.Evaluation of the effect of simulating southern climatic conditions on the reinforcement of mural surface reinforcement and fracture grouting materials.Through the preliminary pre-experiment,the commercial pure acrylic emulsion was selected as the surface reinforcement material,and the hydraulic lime and the gas-hard lime were selected as the grouting reinforcement materials,and the laboratory and the field test were carried out in the wet environment in the south.Through the study of the performance of pure acrylic emulsion,according to the experimental test evaluation of surface gloss,water resistance,aging resistance,etc,the following results can be obtained:RS1930 pure acrylic emulsion with 1.5%mass fraction has better surface strengthening effect.Through the study of the properties of grouting reinforcement materials,according to experimental tests such as potability,water resistance,mildew resistance,strength and aging resistance,the following results can be obtained:Grouting material prepared from traditional gas-hardened lime and lime with a mass of about 3.0%of ZB-SE-3A pure acrylic emulsion and about 1.0%nano-material and 0.5%lime water reducing agent is suitable for grouting reinforcement materials in wet areas,with good groutability,strength and mildew resistance,water resistance and aging resistance.