ML20127B695

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Rev 0 to Special Process Procedure W-SP-6, Bending & Straightening of Reinforcing Bars Partially Embedded in Concrete & Placing of Bars in Hardened Concrete
ML20127B695
Person / Time
Site: Waterford Entergy icon.png
Issue date: 04/26/1976
From:
J.A. JONES CONSTRUCTION CO.
To:
Shared Package
ML17198A241 List: ... further results
References
FOIA-84-455 W-SP-6, NUDOCS 8506220030
Download: ML20127B695 (3)


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.- 1 Procedure No. W-sP-6 J..A. J0NES CONSiRUCTION COMPANY SPECIAL PROGESS PROCEDURE FOR . .

BENDING AND STRAIGHTENING OF REINFORCING BARS PARTIALLY EMBEDDED IN CONCRETE .

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WATERFORD SES UNIT NO.3

, , CONTRACT NO. W3-NY-4 ENGINEERING QUALITY ASSURANCE CONSTRUCTION REV. DATE APPRO.VED BY DATE APPROVED BY DATE APPROVED BY DATE O dl44ln, .CnAs,A W17Mi & -

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FREEDOM OF INFORMATION e 850622003'O 850222 PDR ACT R:{'JE.ST FOIA (j GARDE 84-455 PDR D'N

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J. A. JONES CONSTRUCTION COMPANY PAGE1 0F 2

' PROCEDURE NO.

SPECIAL PROCESS PROCEDURE W-SP-6 l

TITLE.

  • BENDING AND STRAIGHTENING OF REINFORCING REV. NO. 0 l' PARS PARTIALLY ENREDDED f Pl CONERETE & DATE 14/26/76 PROJECT TITLE: kATERFORD SES UNIT NO. 3 CONTRACT NO. W3-NY-4 1.0 PURPOSE 1 -

i To specify methods to be used by J. A. Jones Construction Company and itsr' subcontractors to straighten reinforcing steel after concrete has been placed. .

2.0 SCOPE This procedure defines the methods to be used to straighten reinforcing steel af ter concrete has been placed. *

'3. 0 REFERENCES 3.1 ACI 318-71. -

, 3.2 ACI 318 Comutary.

3.3 ..ACI 318 Revisions to Consnentary.

j 4.0 DEFINITIONS None. .

5.0 RESPONSIBILITY "

5.1 J. A. Jones is to assure proper preparation of reinforcing bars for j bending and proper protection of concrete surfaces against damage by heating.

6.0 PROCEDURE 6.1 ' Reinforcing bars projecting from existing concrete at an angle s

may be brought to their plumb position, and bars that haver been bent may be straightened providing that it is performed in accordance with ACI-318-71 and the requirements 'below.

6.2 The minimum distance from the bend to an existing concrete surface without providing protective insulation shall be 4 inches.

6.3 The reinforcing bar shall first be heated to between 1100F and 1200F and maintained at that level until bending is complete. Heat shall be applied as evenly possible over 'a length of about 6 inches.

) The heat shall be centered at the bend.

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, . J. A. JONES CONSTRUCTION COMPANY .

PAGE 2 0F 2 SPECIAL PROCESS PROCEDURE PROCEDURE NO*

W-SP-6 TITLE. *BENDING AND STRAIGHTENING OF REINFORCING BARS PARTIALLY REV. NO. 0 EMBE0DED IN CONCRETE & DATE 4/26/76 PROJECT TITLE: WATERFORD SES UNIT 0. 3 CONTRACT NO. W3-NY-4

- 6.4 Tempenture - Measuring crayons shall be used to determine the temperature. Heat shall be applied in such a way as to avoid damage to the concrete. Care shall be taken to prevent quenching of heated bar either by appIIcation of water or by exposure to sudden down pour of rain.

70 ACCEPTABILITY OF 8ARS 7.1 Straightened bars shall be visually inspected to determine whether they are cracked, reduced in cross section, or otherwise damaged. Any damaged portions will be cause for rejection and new bar will be grouted in place.

8.0 ATTACHMENTS .

. None.

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