The invention discloses a
processing method for building waste foamed concrete composite heat preservation building blocks. The invention provides a
processing method for the building waste foamed concrete composite heat preservation building blocks. By virtue of the
processing method, the performance of a recycled material can be optimized to the maximum extent, so that the compression strength, the
shear strength and the heat preservation performance of a finished product can be guaranteed. Each building block comprises a base body and a heat preservation core body. A building block preparation process comprises base body forming, core body preparation, maintaining and
drying working procedures; each base body comprises
cement, an active mixed material, a modifier and a recycled aggregate. A processing method for the recycled aggregate comprises the steps of (1) classifying and initially sorting building waste; (2) roughly crushing building waste to prepare granular recycled coarse aggregates of which the dimension is smaller than 10mm; (3) performing mechanical enhancement on the recycled coarse aggregates, adding
natural sand into the recycled coarse aggregates according to a weight ratio of 1:(0.2 to 1), and taking fine sand, which has the particle size of 0.25-0.5 mm, in the mechanically enhanced aggregates for later use. According to the method, the building blocks are high in
bonding strength and uniform, the water absorption property of a single unit is reduced, the production cost is lowered, and the production technology is simple and feasible.