ML20116F259
| ML20116F259 | |
| Person / Time | |
|---|---|
| Site: | Harris  |
| Issue date: | 10/22/1984 |
| From: | CAROLINA POWER & LIGHT CO. |
| To: | |
| References | |
| 000579, 579, OL-I-016, OL-I-16, NUDOCS 8505010020 | |
| Download: ML20116F259 (15) | |
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l DESC7!?!O5: CONCRETE PRODUCTION & DELIVERY iti.22 4 OF 12 3 . . _ . _ _ t i - - - - - CAROLINA POWER & LIGHT COMPANY SHLtRON HARRIS NUCLEAR POWER PLANT WORK PROCEDURE i WP-04 1 i REVIE'.TED AND APPROVED 3Y E3ASCO SERVICES, INC. , FOR CONF 0.L".CCI TO THE RER'.'!RE"INTS OF PA'4.AGPA?H CA-3310 07 AF.!IC'I CA-3300 07 AS"E/ACI 359. SECT;07 I::, DIV. 2,!?!NTER 1975 ADDENDA. . . REY. DESCRIPT!CN APPROVALS DATE I, ORIGINATOR l pM M//l/ _ !2-2.5.af 8 Revised as Noted. CONSTRUC7 R I , [} h4 !.7, 24 Y , i aC o.a. lgjpgf$ l
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WORK PROCEDURE . REVISION ' 10 P DESCRIPTION CONC E PRODUCTION & DELI N PAGE I 5 OF 12 l{ CAROLISA ?%E L LIGF.T COMP.T! SEIARON HARRIS SUCLEAR PokT.R PLAST WORK PROCEDURE tiP-04 82 m P.EVIEWED BY QA /CC TCR COMPLIANCE WITH THE APPLICABLE QA AND CCCE RECUlREMENTS. A REVIEWED AND APPROVED 8Pf ESASCO SERVICES, INC., FDR CONFCRMANCE TO THE RECU!REMENTS CF PARAGRAPH CA-3310 CF ARTICLE CA-3 l CO CF ASME/ACI 359, SECTCNIII, CIV. 2, W:NTER 1975 ACDENCA. REY. DESCRIPTION APPROVALS' DATE 10 Revised As Noted. ORIGitfATO'R h%d Mg4 #2P//J l f[gtf,[***nd CONSTRUCTOR [ h/[ hy %yf'[ [. ( QA/QC REV!EW k
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W . FORM NO.1779 B CONSTRUCTION PROCEDURES MANUAL SENPP h{jpg[* AsA[kfoved WORK PROCEDURE " DESCRIPTION CONCRETE PRODUCTION & DELIVERY 10 'i Pae* 6 d 12 1.0 SCOPE 1.1 This procedure sets forth function, responsibilities, policies and methods which shall govern the production and delivery of Portland Cement Concrete during construction of the Shearon Harris Nuclear Power Plant. 1.2 Where this procedure and Reference 2.1 conflict, the Ebasco Specification shall govern.
2.0 REFERENCES
2.1 Ebasco Specification CAR-SH-CH-6, " Concrete" 2.2 WP-09, Batch Plant Maintenance 3.0 GENERAL 3.1 Production will be scheduled on a daily basis with the Batch Plant Superintendent in accordance with requisitions submitted by the Area i Superintendent or his designee. Concrete shall be requested twenty-four hours (24) prior to time required, whenever possible. 3.2 Punched cards will be maintained on file in the Control House for each approved design mix for programming each batch. 3.3 A QC Inspector will verify batch weights and sign the batch ticket. In addition, the QC Inspector will record on the ticket the amount of water (gallons) that may be added without exceeding the water-cement ratio. ~ 3.4 For plant and delivery. fleet maintenance see Reference 2.2. 3.5 Batch sizes will be based on delivery rate required and shall not exceed ten (10) cubic yards each. 3.6 All batches shall be made in the automatic mode unless prevented by malfunctioning equipment. 3.7 All concrete materials and batching will meet the requirements specified in Reference 2.1.
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FORM NO.1779 B CONSTRUCTION PROCEDURES MANUAL SENFP ' " Ip "($4 AsAN* roved WORK PROCEDURE ""* 10 DESCRIPTION CONCRETE PRODUCTION & DELIVERY P.g. a 7 12 3.8 The following are the types of batching that may be used.
- 1. Truck Mixing Aggregates, cement, water, ice, and admixtures are batche' d by the central plant and discharged thru the dry batch chute into truck mixers. Control of weight and tolerances will be the same as for central mixing due to the use of the same applicable weight hoppers. The Batch Plant Operator shallinsure that all materials are added to the truck mixer drum at a rate slow enough to assure that homogeno'us mixing is occurring (i.e., the drum is not being overcharged). He shall also regulate the charging of the truck mixer in such a manner that proportional amounts of the solid materials are in all parts of the charging stream. Mixing water is regulated to be released first and to continue to flow uniformly during the charging of solid materials. Wherever possible, the batch size should be limiteq, as smaller batches are more responsive to truck mixing.
- 2. Central Mixing
- 1. Charging of the mixer is regulated in such a manner that proportional amounts of the solid materials are in all parts -
of the enarging stream. Mixing water is regulated to be released first and continue to flow during the charging of solid materials.
- 2. Mixing time starts when all materials at: :n too v.Mr drum.
- 5. The mixer is equipped with a locavie timing device that will not allow discharge until the minimum specified mixing time has elapsed.
4.0 PROCEDU.RE 4.1 The BATCH PLANT SUPERINTENDENT shall ensure that the following pre-batching operation.= and chee :s are pe-fc. med dait. -
- 1. Start water pump.
- 2. Sound warning horn for 10 seconds. Turn console power switch on.
Start air compressor'.
- 3. Check cement aeration.
FORM NO.1779 8 CONSTRUCTION PROCEDURES MANUAL 6 NI ** As AppYoved WOSK PROCEDURE 10 DESCRIPTION CONCRETE PRODUCTION & DELIVERY pm g
- 4. Open and close aggregate weigh hopper disch'arge gates.
- 5. Open~and close cement weigh hopper discharge gate.
- 6. Operate flop chute, leave in mixer position.
- 7. Start mixer rotating.
- 8. Weigh two hundred (200) pounds water and five (5) oz. admixture 1 (AEA), discharge to mixer.
- 9. Return flop chute to auto position.
- 10. Start hydraulic pump and raise mixer to full tilt position, empty completely and return to righted position. Stop hydraulic pump.
_ Stop mixer rotating.
- 11. Open and close holding hopper discharge gate.
- 12. Start and stop batch transfer conveyor.
- 13. Turn printer power on, set printer function switch on auto, set printer date and time, momentarily depress MAIN CARRIAGE
-RETURN.
- 14. Reset all admixture counters to zero, reset batch counter to zero.
- 15. Observe moisture meter reading, turn moisture compensation knob to correspond to indicated percent of moisture observed on m eter.
- 16. Set Water Trim on zero.
- 17. Set DISCHARGE to MIXER switch on hold position.
- 18. Ensure that batching scales are within calibration due dater.
- 19. Check with QA to ensure that. material tests have been performed ,
as required.
- 20. Ensure that t Igregate stock piles are ready for production (i.e. - ~
no contamination).
- 21. Ensure that all drivers complete the Mixer Truck Drivers Daily Checklist (Exhibit 3) for their truck.
FORM No.1779 8 ,. . , CONSTRUCTION PROCEDURES MANUAL SENPP
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- As Approved WORK PROCEDURE 10 DESCRIPTION CONCRETE PRODUCTION & DEWERY p.g. a 9 12 4.2 The BATCH-PLANT SUPERINTENDENT shall ensure that batching materials are weighed up as follows:
1 1. The fine and coarse aggregates are weighed in a single hopper, using cumulative weights, to within a 2% tolerance by weight (3% for aggregate larger than 1-1/2 inch). 2. Cement is weighed and batched in a separate hopper from the aggregates.to within a 1% tolerance by weight. 3. Water and ice are weighed and batched in separate hoppers to within a 1% tol.erance by weight.
- 4. U
_ ntil introduction into the mixer, the air entraining agent and admixture are kept separate. Air entraining agent, admixture TYPE "A" and admixture TYPE "D" are measured, by volume, in separate containers, as follows: 1. Air entraining agent is to b'e measured to within a tolerance of 1%.
- 2. '
Admixture is to be measured to within a tolerance of 3% or one (1) fluid ounce, whichever is greater. 5. The hoppers are so arranged that any over-weight can be dumped and restocked or removed. 6. The moisture compensation knob shall be set to the corresponding moisture percentage (nearest one half percent) as determined from the moisture content taken by QA. If slump inconsistencies occur, adjustments shall be made based on the moisture reading taken by QA. , 7. To maintain correct slump and yield the mix design will be modified, as required by the percentage of moisture in the aggregates.
- 4.3 The BATCH PLANT SUPERINTENDENT shall ensure that concrete delivery is performed in accordance with the following:
1. General Considerations 1. The truck mixing speed shall conform to the Alanufacturer's
. recommendations for revolutions per minute. R10
FORM NO.1779 8 - CONSTRUCTION PROCEDURES MANUAL SENPP (7*ge N% p ;Dp roved WORK PROCEDURE ** " 10 DESCRIPTION R0 m W & E M RY p* d 10 12
- 2. Each mixer is equipped with a'n accurate revolution counter.
- 3. During hot weather concitions, all concrete shall be placed in the forms within 45 minutes after the addition of water to the cement and aggregate. At other times the time limit shall be sixty (60) minutes. The total number of revolutions ~
of the mixing drum both at the mixing speed and agitating ' ~ shall be recorded.
- 4. Discharge of the concrete shall be completed within the time limits indicated above, unless otherwise authorized by the Owner, and then only if the initial set has not been attained in the concrete, but in no case shall the time exceed one and one-half (1-1/2) hours.
- 5. The mixer drum shall revolve at the speed designated by the Manufacturer of the equipment as agitating speed at all times except when loading, mixing or discharging. ,
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- 6. While loading, the mixer drum will be revolving at mixing speed.
, 7. A batch ticket, Exhibit 1, will be completed for each load of concrete. One copy will be retained at the plant and three copies will accompany the truck to the site of placement.
The truck driver shall note the number of revolutions indicated on the truck revolution counter and initialin the space provided on the golden rod copy of the batch ticket prior to departing from the Batch Plant to document counter operation. The CI at the site of the placement will lR10 sign and retain all three copies. He shall transmit one copy to QA, transmit one copy to Office Enginedring and retain one copy.
- 2. Truck Mix
- 1. General Considerations ~
- 1. Truck mix is intended to be used as a standby operation in the event of malfunction of the central
FOR!d NO.1779 B CONSTRUCTION PROCEDURES MANUAL SisNPP Pf.p*jg N3
- As oproved WORK PROCEDURE "'"""
10 CONCRETE PRODUCTION & DELIVERY DESCRIPTION Page 11 of 12 mixer. The Batch Plant Superintendent shall notify the Concrete Superintendent and the Construction Inspector on the concrete placement when truck mixing of concrete is necessary.
- 2. Truck Mixing
- 1. Prior to loading, the mixer will discharge any washout
~ water left in the drum.
- 2. Rotate truck mixer drum at mixing speed during charging of materials into the drum. After truck is loaded, reset revolution counter to zero.
- 3. Each batch of concrete shall then be mixed 100 revolutions of the drum at mixing speed. The mixing will take place at the Batch Plant.
- 4. The Batch Plant designee will ecmplete the concrete delivery ticket, with ink, showing time, amount of water and/or ice, air entraining agent and Type A or D admixture metered into the mix. A Quality Control Inspector shall initial the delivery ticket witnessing added quantities and truck revolutions.
- 3. Central mix will be mixed in a stationary mixer and the mixed concrete transported to the site of placement in a truck agitator.
4.4 The BATCH PLANT SUPERINTENDENT shall' ensure that the following records are generated:
- 1. Batch Ticket (Exhibit 1) '
- 1. Three copies of each batch ticket will accompany each load of concrete and shall show the batch yardage and the accumulated yardage.
- 2. One copy of the batch ticket shall remain at the Batch Plant to be filed.
- 3. In the event the automatic ticket printer malfunctions, the plant operator or designee will fill out the ticket using the
D , I' FORM NO.1779 8
- CONSTRUCTION PROCEDURES MANUAL *-
[y.Ti' "" As App Ovid WORK PROCEDURE { 10 DESCRIPTION CONCRETE PRODUCTION & DELIVERY ,, g a g actual weights read from the scales and the moisture content as read from the moisture meter and indicate the date, time, mix number, destination number, truck number, batch yardage and accumulated yardage and shall sign or initial the ticket.. A Quality Control inspector shall initial the handwritten ticket to verify quantities.
- 2. Destination' Log (Exhibit 2)
To be used on a daily basis. A separate log sheet is required for each placemen't. This log is to be kept to schedule concrete trucks and to monitor cummulative hauling quantities.
- 3. Mixer Truck Drivers Daily Checklist (Exhibit 3) to be filled out daily on all mixer trucks to ensure proper operation of all mixer truck equipment. A copy of all checklists will be maintained in the Batch Plant Superintendent's files.
4 5.0 EXHIBITS AND APPENDICES 5.1 Exhibit 1 - Batch Ticket (Rev.1-3/79) 5.2 Exhibit 2 - Destination Log (Rev. 4-3/79) 5.3 Exhibit 3 - Mixer Truck Drivers Daily Checklist (Rev. 0-6/79) e e l
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PLACEMENT SAse es7 stout .4sI0at . l CODE Clut:tf DN wortR #C! A0ut ! admit 2 MGt A0 edit 3 no Most wt04f a(4 0 a CONTAINMENT BUILDING
- 2. AUX. BUILO!NG & TANK AREAS tit 11 5 ( ACC Ctu watta MO DAT . TR. t Taat IARE Ig 4t 4 WASTE PROCESSING BUILDING
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YARDS 6. DIESEL GENERATING BUILDING ,A[:h. %. . BATCH r - ACCUM. 7. COOLING WATER STRUCTURES CUBIC YARDS 27a"
. e~- 8 OUTSIDE AREA STRUCTURES
- 3. LESS GALLONS QA
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- 9. WCST AUXfLIARY DAM
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- 0. MAIN DAM & RIVER STRUCTURES ;
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1).liiin i t 2 TI% blRECTIONS: . vesrwancw toc DATE.' w- u'. PLACEMENT DEST MIX TIME TIM E CYD's TRUCKS INUSE NO. NO. NO. CALLED IN ist LOADED CALLED IN 3 TRK T)CKET CYD's ACCUM. SLUMP AIR TEMR WATER AME REASON FOR WitERE PLACED NO. NO. BATQlED TOTAL ADMD REJ REJECTION f
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- 3. HOSES
- 4. bel.TS uxER AfD TsUCK -'
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- 7. RQ1ER EARINGS ,
- 8. CPAINS -
- 9. REED ERAKES 10.LEBSANDCAELES -
- 11. CEES.
- 12. Bi1P TIRES h
vEn 13. LIGHTS AND SIS @LS I4.FIREEXT, 15.EACKLPALARM
- 16. HORN I.~. CH33 LO3h
- 18. EUILD LP INSIE MIXER -
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- 19. REV. COUNER
- 20. CAB CLEAN INSIE '
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