The Influence of Exogenous Alkali Content on the Pore Structure and Properties of Red Mud Based Alkali Activated Cementitious Materials
The effect of exogenousNa2 O content on the pore structure and properties of red mud based alkali activated cementitious materials was studied using NaOH as the activator and mercury intrusion testing methods,and a Menger sponge model was constructed.The results show that the Menger sponge model can better reflect the relationship between the fractal dimension of the matrix and the characteristics of the pore struc-ture.With the increase of exogenousNa2 O content,the pore structure becomes denser,and the fractal dimension of the pore increases from 3.13338 to 3.27628.
Red mud based alkali activated cementitious materialsNaOHPore structureFractal model of pore structure