The rework rate of the project has increased dramatically? It turns out that the mortar is peeling off!
n construction projects, mortar dusting and insufficient strength are common problems that can seriously affect quality, cause rework, delay schedules, and increase costs. The root causes often lie in the following aspects: 1. Raw Material Issues Cement : Inadequate strength grade, expired or damp cement will reduce bonding performance and lower final strength. Sand : High mud content or poor gradation reduces bonding and compaction, leading to poor strength. Water : Impurities or abnormal pH levels can interfere with cement hydration and mortar performance. 2. Mix Proportion Issues Insufficient Cement : Not enough binding power → low strength. Excessive Sand : Not enough paste to coat sand particles → weak adhesion. Improper Water-Cement Ratio : • Too high → high porosity, bleeding, low strength; • Too low → incomplete hydration, weak structure. 3. Construction Process Issues Uneven Mixing : Poor distribution of materials leads to unstable performanc...