LAUSR

In the present study, macro-mechanical and micro-pore structure tests were conducted on aeolian sand lightweight aggregate concrete. A fractal theory was used to characterize the distributions of the pore radii of the concrete. Then, the relationship between the fractal dimensions of the pore radii and the compressive strength of aeolian sand lightweight aggregate concrete was discussed in combination with a grey theory. The results showed that the porosity, most probable pore sizes and average pore sizes of the aeolian sand lightweight aggregate concrete indicated a trend of first rising and then decreasing. A grey model GM (1, 4) for predicting the compressive strength of the concrete based on the fractal dimensions of the aeolian sand lightweight aggregate concrete with pore radii of 0–0.1  μ m, > 0.1–10  μ m and > 10  μ m was established in the current study.