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This TechNote discusses the implications of minimum cementitious materials content in project specifications (NRMCA 2015a). Prescriptive specifications for concrete construction projects often include a clause that requires a minimum cement content to be used in concrete mixtures (Obla and Lobo 2015).
The Collection Online includes all new committee standards and reports released throughout the year. The most recently added include:
PRC-546.3-23: Materials Selection for Concrete Repair—Guide
PRC-546-23: Concrete Repair—Guide
PRC-228.4-23: Visual Condition Survey of Concrete—Guide
SPEC-544.12-23: Performance-Based Fiber-Reinforced Concrete for Slabs-on-Ground and Overlays—Specification
SPEC-548.10-22: Type Methyl Methacrylate Slurry (MMS) Polymer Overlays for Bridge and Parking Garage Deck—Specification
CODE-437.2-22: Load Testing of Concrete Structures - Code and Commentary (SI Units)
PRC-440.2-23: Design and Construction of Externally Bonded Fiber-Reinforced Polymer (FRP) Systems for Strengthening Concrete Structures—Guide
PRC-225-23 Guide to the Selection and Use of Hydraulic Cements
350-20: Code Requirements for Environmental Engineering Concrete Structures (350-20) and Commentary (350R-20) (SI Units)
CODE-307-23: Requirements for Reinforced Concrete Chimneys—Code and Commentary