abstract
background
beaten
block
brick
bricky
broken
brown
building
cement
clay
concrete
construction
cracked
crushed
damaged
debris
defective
destruction
dirty
downtrodden
dump
dust
flinders
grey
ground
heap
industrial
industry
material
old
piece
pile
rejects
rubble
sand
scrap
scrapheap
silicate
site
soil
split
spoilage
stack
storage
surface
texture
trampled
urban
waste