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CONCRETE CONTAINMENTS

Introduction

Design of concrete containments in the United States is now carried out under ASME Section III, Div 2 Code [1] for Concrete Containments—Joint ACI/ASME Technical Committee on Concrete Pressure Components for Nuclear Service under the sponsorship of the American Concrete Institute and the American Society of Mechanical Engineers. The two Societies have agreed that requirements for concrete containments will be published as Section III, Division 2, of the ASME Boiler and Pressure Vessel Code. The older containments were designed in accordance with NRC SRP section 3.8.1 and the American Concrete Institute (ACI) Building Code Requirements for Structural Concrete (318). Some licensees have incorporated some of the requirements of the ASME III-Div. 2 Code, as part of reconstitution efforts during license renewal. The following paragraphs provide a summary of various section of the current Section III, Div 2 code:

Section CC 2000 provides material requirements for concrete constituents, mix design, grout, reinforcement, prestressing steel, liner plate, liner anchor and welding. This section also covers the required certifications, identification, testing, performance requirements and examinations and supplier quality requirements.

Section CC 3000 covers design of reinforced and prestressed concrete containments for various load conditions and allowables. This Section also includes design requirements for liner plate and liner anchors, fatigue and impulse and impact loads.

Section CC 4000 provides requirements for fabrication and construction of concrete materials, components and systems for concrete containments. This section also includes required certifications and traceability.

Section CC 5000 provides requirements for construction testing and examination for materials and components used in concrete containments. This section also provides requirements for procedures for testing and qualification, certification, and evaluation requirements.

Section CC 6000 provides the requirements for structural integrity testing, Section 7000 provides requirements for overpressure protection and Section 8000 provides requirements for nameplates, stamps, and reports.

 
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