# Cylinder break test

A term used when buying concrete.

The samples cast at the pour and crushed later to prove the concrete met its strength.

A test result is the average of a set of cylinders broken at twenty-eight days, and failing one does not end at a retest. The federal guide specification treats it as a [deficiency](https://searchspheresource.com/glossary/deficiency) requiring a mitigation plan, and the remedy is coring. Cores pass only if they average eighty-five percent of design strength with none below seventy-five. That is a structure already built and an argument about who pays to fix it. The break record is the only written history of whether this company's work stands up.

Part of: Buying a Concrete Business (https://searchspheresource.com/guides/buying-a-concrete-business)

Source: https://searchspheresource.com/guides/buying-a-concrete-business/terms/cylinder-break-test
Not dated: The same editorial definitions as the glossary, inside a trade.

Site index for machines: https://searchspheresource.com/llms.txt