PMC

Photos of bricks before grinding: (a) permeable brick before dyeing; (b) permeable brick after dyeing; (c) micrograph of permeable brick before dyeing; (d) micrograph of permeable brick after dyeing.

(A) Home of fire master on the brick kiln (for fixed chimney Bull’s trench brick kilns), (B) homes of brick workers adjacent to the brick kiln, and (C) brick kiln chimney in Bhaktapur, Kathmandu Valley, Nepal, May 2018.

Video snapshots of the brick separation process: (a) CDW materials feeding; (b) Broken brick jumping between axle; (c) Bulk concrete move forward; (d) Unbroken brick pass the axle gap; (e) Unbroken brick separated; (f) Broken brick separated.

SEM images of cells attached and spreading on bone bricks (case 7) as a function of material composition for (A) PCL bone brick, (B) 10 wt % HA bone brick, (C) 15 wt % HA bone brick, (D) 20 wt % HA bone brick, (E) 10 wt % TCP bone brick, (F) 15 wt % TCP bone brick, (G) 15 wt % TCP bone brick, and (H) 10/10 wt % HA/TCP bone brick.