---
title: Cast-in-Place Concrete
−category: Structural
+category: Structural / Concrete
toc_depth: 3
description: >
…1192 unchanged lines
Concrete mix designs that were approved by the Engineer and placed in accordance with this specification, but that produce 28-day strengths meeting the acceptance criteria, are not subject to warranty defect claims on the basis of strength alone. Where service conditions later produce distress not anticipated by the specified exposure category, the Engineer shall determine the cause and recommend remediation; responsibility for mix redesign in changed conditions is a design matter, not a construction defect.