Effect of Fly Ash on Properties of Hydraulic Concrete
This study has compared and analyzed the durability,strength,workability and other properties of U-shaped channel concrete with different grades and different contents of fly ash.The results show no obvious difference in the impermeability and slump of concrete prepared with the same amount of class Ⅰ and class Ⅱ fly ash.The freeze-resistance of the concrete prepared by class Ⅰ fly ash is higher,and the freeze-resistance of the U-shaped channel concrete prepared by class Ⅱ fly ash does not comply with the requirements of GB 50164-2011 Quality Control Standard for Concrete.It is recommended to use class Ⅰ fly ash and the mixing amount of 15%of U-shaped channel concrete,when the concrete performance level and the cost are optimized.
万方数据
维普
