Brick-Concrete Recycled Sand Powder AAC

Controllable Pore Structure

Precise control of pore structure via water reducer and aluminum powder dosage, providing a basis for optimizing the performance of recycled aggregate AAC.

Chen, Xiao · Zhang, Haoyu · Tiantian, Gong · Beixing, Li · Zhao, Qinglin

Construction and Building Materials 2023

Advantages

With increasing Al powder paste, porosity, average pore size, and hole shape factor increased, number of holes decreased, and proportion of large holes increased

With increasing slurry fluidity, porosity first increased then slowly decreased, number of holes first decreased then slowly increased

Dry density and compressive strength decreased with increasing porosity