Method for repairing wall diseases of earthen architecture

A method for repairing wall defects of an earthen architecture, comprising:

• selecting raw material components:
• 1-4 parts of metakaolin, 1-4 parts of calcium hydroxide and 1-4 parts of a micro silicon powder, and mixing the raw material components to prepare a mixed material;
• mixing the mixed material with natural soil at a mixing ratio of 1:5 to prepare a repair material;
• mixing the repair material with water at a dilution ratio of 1:4 to 2:3 to prepare a slurry, adjusting the dilution ratio of the repair material to the water to prepare the slurry based on defects of an earthen architecture, putting the slurry into a pressure grouting machine, and repairing the defects of the earthen architecture by using the pressure grouting machine;
• and
• conducting a contrast experiment by measuring parameters of the earthen architecture before and after repair using an instrument, determining the extent of an external environment on the earthen architecture and assessing effectiveness of the repair based on the measured parameters.