Shrinkage crack

shrinkage crack

[′shriŋ·kij ‚krak] (geology) A small crack produced in fine-grained sediment or rock by the loss of contained water during drying or dehydration. (metallurgy) An irregular interdendritic crack in a casting caused by unequal contraction or inadequate feeding.

Shrinkage crack

A rift that appears in the surface of building materials such as concrete, masonry, and mortar joints, due to shrinkage.

shrinkage crack

A crack due to restraint of shrinkage.