ML19242A562
| ML19242A562 | |
| Person / Time | |
|---|---|
| Issue date: | 06/01/1979 |
| From: | NRC OFFICE OF STANDARDS DEVELOPMENT |
| To: | |
| Shared Package | |
| ML19242A558 | List: |
| References | |
| REGGD-01.136, REGGD-1.136, NUDOCS 7908030143 | |
| Download: ML19242A562 (2) | |
Text
1 VALUE IMPACT STATEMENT 2
REGULATORY (JIDE 1.136, REVISION 2, " MATERIALS, 3
CONSTRUCTION AND TESTING OF CONCRETE CONTAINMENTS" 4
This guide provides informatica regarding the NRC staff'; positions on the 5
acceptability for NRC licensing actions of CC 1000, 2000, 4000, 5000, 6000, 6
and 7000 of the Code for Concrete Reactor Vessels and Containments published 7
jointly by the American Society of Mechanical Engineers (ASME Boiler and Pressure 8
Vessel Code,Section III, Division 2, 1977 Edition) and the American Concrete 9
Institute (ACI Standard 359-77) and through Winter 1978 Addenda to the Code.
In 1
those areas where the NRC staff finds provisions of the referenced Code not 11 sufficient for licensing purpose, supplementary guidelines are given in the 12 regulatory position.
13 Issuance and implementation of this guide will provide the NRC reviewers and 14 applicants 3 common basis of understanding what the minimum requirement of 15 materials, construction, and testing fcr concrete ;ontainments are, thus mini-16 mizing potential subjectivt-interpretations on the degree of acceptability for 17 materials, construction and testing of concrete containments.
18 Most Code requirements are now being accepted by the industry and NRC.
Therefore, 19 the endorsement of these Code requirements would have no further impact as far as 20 industry practices go.
Regulatory Positions Cl through C4 have been previously t
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1 stated in the Revision 1 guide, but Regulatory Positions CS and C6 are newly 2
proposed.
Regulatory Position C5 recommends a good construction practice that 3
would eliminate the unwanted materials from being left in the concrete.
Regulatory 4
Position C6 recommends that a retest be conducted or r..edial measures be under-5 taken when containments fail to pass an acceptance test.
These would not have 6
any negative impact on the industry.
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