Patent ID: 11732492

Abstract:
A method for reinforcing an existing stone masonry wall, wherein, the UHPC (ultra high performance concrete) material for reinforcing an existing stone masonry wall as a reinforcing material, comprising following steps: step (1): carrying out a pretreatment to the existing stone masonry wall to be reinforced; step (2): tensioning and thereby reinforcing the existing stone masonry wall pretreated in the step (1); step (3): injecting a prepared UHPC material into the mortar joint by a manual squeezing; step (4): spraying prepared UHPC material onto the existing stone masonry wall that has been treated in the step (3) by a spraying process; step (5): maintaining; the UHPC material includes: 550-600 kg/m3 of silicate cement, 180-200 kg/m3 of white silica fume, 510-530 kg/m3 of limestone powder, 715-735 kg/m3 of quartz sand, 60-75 kg/m3 of iron ore tailings particles, 50-60 kg/m3 of pumice particles, 15-30 kg/m3 of polycarboxylic acid water reducing agent, 230-255 kg/m3 of water and 25-35 kg/m3 of POM fiber.