Effect of kaolin modified sodium polyacrylate super absorbent polymer on mortar performance
The inorganic component kaolin and the organic component sodium polyacrylate superabsorbent polymer were grafted and polymerized by reverse suspension polymerization,and the particle size distribution and water absorption rate were analyzed to determine the more suitable amount of kaolin added.The experiment investigated the effects of modified high water absorbent resins with different kaolin contents and different dosages of kaolin modified high water absorbent resins on the shrinkage,flexural strength,and compressive strength of mortar.The results indicate that adding high water absorbent resin containing kaolin effectively alleviates the drying shrinkage of mortar,but the addition of high water absorbent resin generally reduces the flexural and compres-sive strength of mortar.The appropriate dosage of kaolin modified high water absorbent resin is 0.2％.
kaolinemodified super absorbent polymermortardry shrinkagemechanical properties
万方数据
维普
