spall
/spɔl/
noun
- A small piece or chip of stone, rock, or concrete that has broken off from a larger mass.
- The demolition crew swept up the spalls of concrete after breaking the wall.
- A sharp spall of flint flew off when he struck the rock with a hammer.
- The geologist examined a spall of granite under a magnifying glass.
verb
- To break off or cause to break off in small chips or fragments, especially from stone, rock, or concrete.
- He used a chisel to spall away the damaged part of the brick.
- The mason carefully spalled the rough edges of the stone block.
- Over time, the freeze-thaw cycle can spall the surface of concrete steps.