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Question: What does it mean when a packaged repair material is labeled as shrinkage-compensating or nonshrink? Answer: The terms ‘shrinkage-compensating’ and ‘nonshrink’ are both intended to describe materials that exhibit no or little net contraction as a result of shrinkage. In practice, however, these terms are of limited use in the selection of repair materials without supporting test data on time-dependent volume changes.
The MCP Online contains all new committee standards and reports released throughout the year. The most recently added include
PRC-225-25: Selection and Use of Hydraulic Cements—Guide
PRC-231.1-25: Managing and Increasing Early-Age Strength of Low-Clinker Concrete Mixtures—TechNote
PRC-225.2-25: Type IL Cements and Specifications—TechNote
PRC-303-25: Cast-in-Place Architectural Concrete Practice—Guide
PRC-357.3-25: Design and Construction of Waterfront and Coastal Concrete Marine Structures—Guide