ML20127C039

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Rev 1 to Special Process Procedure W-SP-20, Concrete Core Drilling
ML20127C039
Person / Time
Site: Waterford Entergy icon.png
Issue date: 08/28/1978
From:
J.A. JONES CONSTRUCTION CO.
To:
Shared Package
ML17198A241 List: ... further results
References
FOIA-84-455 W-SP-20, NUDOCS 8506220125
Download: ML20127C039 (5)
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Procedure No. W-SP-20 e EBASCO SERVICES I INCORPORATED J. A. JONES CONSTRUCTION COMPANY QUAL:Ty

) ASSCRANCE SPECIAL PROCESS PROCEDURE  : MNERN i.

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CONCRETE CORE DRlLLING O *p.**'.*e*:

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O ac.nus: Revii. .no n summit NOTE:

R.vWw of t'.it ::1cument, wltM 0f withcut comment 4, es f or gen.r.l conterm.ne. <,an t .. ...ii..ni.

..it,ee a-: or. v .no in a. w y WATERFORD SES UNIT NO. 3 '*"*"o*r*trote tr.st f,' a J essco"nsinstity for e . iaerv t .a .ueriais. .avie CONTRACT NO. W3-NY-4 m nt. .rvw...no oo. m.n o.a _

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'n 1;i' Date Wy rv'JLM

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e er ENG INEERING CONSTRUCT ION QUALITY ASSURANCE DATE REVIEWED BY DATE REVIEWED BY DATE APPROVED BY DATE REV.

o 8-16-78 D"'lc. , ?4 h, ${re l?C YW _. 4,/71 hfkfd$'f # 79 1 8-28-78 i !R/bh .$f!8hk - 2bbh /$Yfh f 9#7P' 2 y ie r i MWM VF INFORMATION

, ACT REQUEST 154-45'$

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  • ~ ar J.A. JONES CONSTRUCTION COMPANY PAGE 1 0F 2 PROCEDURE NO.

W-SP-20 SPECIAL PROCESS . PROCEDURE' Issue Date:

. TITLE OF PROCEDURE:

CONCRETE CORE DRILLING 8-16-78 PROJECT TITLE; Rev. No. & Date:

WATERFORD SES UNIT NO. 3 CONTRACT 'NO. W3-NY-4 1 8-28-78 1.0 PURPOSE The purpose of this Procedure is to estabitsh a method to provide openings in concrete for piping, ductwork. conduit,etc. .

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2.0 Qq P1 S.,C,0, This Procedure shall govern drilling the specimen, any testing and sub-sequent repair of cored holes.

3.0 REFERENCES

3.1 A.S.T.M. C-39-1974.

3.2 A.S.T.M. C-42-1974 J. A. Jones Work Procedure W- SP-14 3.3*

- 3.4 Ebasco Memorandum ES-129-78 ,

40 DEFINITIONS None.

5.0 RESPONSIBILITY 5.1 Ebasco Services, incorporated shall be responsible for determining the location of the cores to be drIIIed.

5.2 J. A. Jones Construction Company shall be responsible for securing the core drilling contractor, the coring of the concrete, and any repairs to the concrete if required.

6.0 PROCEDURE Drill various diameter holes at locations directed by Engineering Drawing furnished by Ebasco Serv' ices, incorporated. The Engineer shall giva direction as to the nunper, location, and depth of required cores, and any special precautions. See attachments A and B.

FOnM NO. I122 0G JUNE '74 ,

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J.A. JONES CONSTRUCTION COMPANY n

PROCEDURE NO.

SPECIAL PROCESS PROCEDUR'E W-SP-20 Issue Date:

TITLE OF PROCEDURE:

' CONCRETE CORE DRILLING 8-16-78 PROJECT TITLE: Rev. No. & Wate:

WATERFORD SES UNIT NO. 3 CONTRACT NO W3-NY-4 1 8-28-78 6.0 PROCEDURE (CONTINUED) 6.1 J. A. Jones Engineering will be responsible for layout and as-built drawings.

6.2 quality Verification will be responsible for seeing that different ..

methods of core drilling are adhered to.

6.3 Repair and filling of chipped and cored areas will be done according to J. A. Jones' W-SP-14 7.0 RECORDS & DOCUMENTATION _

R-1 7.1 J. A. Jones Engineering will reproduce the Ebasco Drawing showing location of each core hole, and will provide'the Ebasco initiating discipline Engineer with the as-built drawing should the location

- of core hole be changed to comply with Ebasco ESSE reinforcing steel disposition.

R-1 7.2 quality Verification signature, in the appropriate space on Attachment A verifles that the hole was chipped, cored o'r drilled in accordance with the requirements set forth on Attachment A and B, and that "As-Built" dimensions are correct. J. A. Jones quality Verification is to document the number, location and sizes of rebar cut or any other obstructions encountered on Attachment "A".

8.0 ATTACHMENTS 8.1 Sample As-Built Drawing.

8.2 Ebasco Memorandum ES-129-78.

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FORM NO 1122 0G JUNE '74 ,

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MEM0RANDUM ~ -

July 7, 1978

. ES-129-78 i

TO: R. Vine FROM: J. T. Friscia . .

1

SUBJECT:

LOUISIA"A POWER &* LIGHT COMPANY

{ WATERFORD STEAM ELECTRIC STATION

1980 - 1165 MW INSTALLATION UNIT NO 3 .

CORE DRILLING PROCEDURE ASP-IV-32," Approval of Core Hole Locations" states that the ESSE Civil Engineer shall be responsible for specifying the method of core drilling' and the disposition of reinforcing steel interferences.

ESSE gives the disposition on the Field Sketch by checking one of three bexes. Questions are arising about the methodsdescribed on the Field Sketch necessitating the-following elaboration.

s A. OK to Cut Reinforcing Steel This disposition is self explanatory. The hole may be core drilled with a hard bit through any reinforcing encountered.

B. Chip Concrete to Avoid Rebar

  • This disposition is given when reinforcing can not be cut or damaged. The location of the resteel is determined by chipping the concrete cover from both sides of the nember. The exact penetration location is then chosen to clear both faces of rebar. The penetration may be chipped or core drilled.

C. Use Carbide Bit-If Resteel Encountered. Shift Role Location This method is specified when damage to reinforcing is not critical and an exact hole location is not required. The penetration is core drilled, using a carbide bit, in a cautious canner. The moment rebar is detected, the hole is to be relocated to avoid dar. age to the steel.

When the annulus between the pipe sleeve or conduit is filled. l (with dry pack grout or type F nortar) the surface of the penetration '

shall be coated with Sikadur Hi-Mod epoxy to permit proper bond to the existing concrete. * -

D' JTF/t=s cc: p. C. Liu J. L. Wills W. Hubrich E. Brundsge W. C. Criggs H. Bourque

W. Arden L. A. Stinson R. Zaist J. T. Triscia J. Guitarrez J. Mullikin ,/

t J. Crnich E. Henderson File C.5.21.1 V R. J. Milhiser C. Walker C.5.20.4

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