W912PM18B00130001.pdf

MOTSU 18-08

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT

Except as provided herein, all terms and conditions of the document referenced in Item 9A or 10A, as heretofore changed, remains unchanged and in full force and effect.

15A. NAME AND TITLE OF SIGNER (Type or print)

30-105-04EXCEPTION TO SF 30

APPROVED BY OIRM 11-84

STANDARD FORM 30 (Rev. 10-83)

Prescribed by GSA

FAR (48 CFR) 53.243

Solicitation W912PM18B0013 is hereby amended for the follow ing reason:

1) See Technical Summary of Changes, attached.

2) All other terms and conditions of the solicitation remain unchanged.

///////////////////////////////////////////////// LAST ITEM \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\

1. CONTRACT ID CODE PAGE OF PAGES

J 1 2

16A. NAME AND TITLE OF CONTRACTING OFFICER (Type or print)

16C. DATE SIGNED

BY 07-Sep-2018

16B. UNITED STATES OF AMERICA15C. DATE SIGNED15B. CONTRACTOR/OFFEROR

(Signature of Contracting Officer)(Signature of person authorized to sign)

8. NAME AND ADDRESS OF CONTRACTOR (No., Street, County, State and Zip Code) X W912PM18B0013

X 9B. DATED (SEE ITEM 11)

01-Sep-2018

10B. DATED (SEE ITEM 13)

9A. AMENDMENT OF SOLICITATION NO.

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

X The above numbered solicitation is amended as set forth in Item 14. The hour and date specified for receipt of Offer is extended, X is not extended.

Offer must acknowledge receipt of this amendment prior to the hour and date specified in the solicitation or as amended by one of the following methods:

(a) By completing Items 8 and 15, and returning 1 copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted;

or (c) By separate letter or telegram which includes a reference to the solicitation and amendment numbers. FAILURE OF YOUR ACKNOWLEDGMENT TO BE

RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN

REJECTION OF YOUR OFFER. If by virtue of this amendment you desire to change an offer already submitted, such change may be made by telegram or letter, provided each telegram or letter makes reference to the solicitation and this amendment, and is received prior to the opening hour and date specified.

12. ACCOUNTING AND APPROPRIATION DATA (If required)

13. THIS ITEM APPLIES ONLY TO MODIFICATIONS OF CONTRACTS/ORDERS.

IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.

A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (Specify authority) THE CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE

CONTRACT ORDER NO. IN ITEM 10A.

B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office, appropriation date, etc.) SET FORTH IN ITEM 14, PURSUANT TO THE AUTHORITY OF FAR 43.103(B).

C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

D. OTHER (Specify type of modification and authority)

E. IMPORTANT: Contractor is not, is required to sign this document and return copies to the issuing office.

14. DESCRIPTION OF AMENDMENT/MODIFICATION (Organized by UCF section headings, including solicitation/contract subject matter where feasible.)

10A. MOD. OF CONTRACT/ORDER NO.

2. AMENDMENT/MODIFICATION NO. 5. PROJECT NO.(If applicable)

6. ISSUED BY

3. EFFECTIVE DATE

07-Sep-2018

CODE

U S ARMY CORPS OF ENGINEERS, WILMINGTON

WILMINGTON DISTRICT

ATTN: CONTRACTING DIVISION

69 DARLINGTON AVE

WILMINGTON NC 28403-1343

W912PM 7. ADMINISTERED BY (If other than item 6)

4. REQUISITION/PURCHASE REQ. NO.

CODE

See Item 6

FACILITY CODECODE

EMAIL:TEL:

W912PM18B0013

SECTION SF 30 BLOCK 14 CONTINUATION PAGE

SUMMARY OF CHANGES

SECTION 00 10 00 - SOLICITATION

The Issued By organization has changed from

U S ARMY CORPS OF ENGINEERS, WILMINGTON

WILMINGTON DISTRICT

ATTN: CONTRACTING DIVISION

69 DARLINGTON AVE

WILMINGTON NC 28403-1343

to

U S ARMY CORPS OF ENGINEERS, WILMINGTON

CONTRACTING - WILMINGTON DISTRICT

69 DARLINGTON AVENUE

WILMINGTON NC 28403

(End of Summary of Changes)

W912PM18B0013

Amendment 0001

Technical Summary of Changes

SPECIFICATIONS

03 01 30.71 – CONCRETE REHABILITATION

Delete existing Page 1 thru Page 17 in their entirety and replace with revised enclosed like-numbered Pages.

NOTE:

Text that is added or revised by this amendment is identified with Amendment 0001(beginning and ending of revision/addition). Track changes shown as GREENE/ADD.

The text changes may have necessitated reformatting of subsequent text or pages. If this is the case, those pages have also been issued as amended pages but are not underlined or bold text.

DRAWINGS

Delete existing Sheet S-127 in its entirety and replace with revised enclose Sheet.

-- End of Summary of Changes-

Encls As Stated

J&N PI LE, DECK & MI SC. REPAI RS W912PM18B0013

FOR THE NORTH WHARF, MOTSU

SECTI ON TABLE OF CONTENTS

DI VI SI ON 03 - CONCRETE

SECTI ON 03 01 30. 71

CONCRETE REHABI LI TATI ON

PART 1 GENERAL

1. 1 REFERENCES

1. 2 DEFI NI TI ONS

1. 2. 1 Lat ex Addi t i ve

1. 3 GENERAL REQUI REMENTS

1. 3. 1 Concr et e Spal l Repai r s

1. 3. 2 Cat hodi c Pr ot ect i on ( CP) Pi l e Jacket

1. 4 SUBMI TTALS

1. 5 I NSPECTI ON O[ F SPALLED AREAS

1. 5. 1 Under deck Spal l s

1. 5. 2 Pi l e Repai r Cr i t er i a

1. 5. 3 St r uct ur al Pi l e Repai r Cr i t er i a

1. 6 I NSPECTI ON OF PI LES

1. 6. 1 Pi l es

1. 7 QUALI TY ASSURANCE

1. 7. 1 Desi gn Dat a

1. 7. 1. 1 Job Mi x For mul a

1. 7. 2 Test Repor t s

1. 7. 2. 1 Lat ex addi t i ve

1. 7. 3 Fi el d Mock- Ups

1. 8 DELI VERY, STORAGE, AND HANDLI NG

1. 9 WEATHER LI MI TATI ONS

1. 10 TRAFFI C CONTROL

1. 11 EQUI PMENT

PART 2 PRODUCTS

2. 1 CONCRETE SPALL REPAI R

2. 1. 1 Mat er i al s

2. 1. 2 Mi x Pr opor t i ons

2. 2 CATHODI C PROTECTI ON PI LE JACKET

2. 2. 1 Zi nc Anode

2. 2. 2 For m Mat er i al

2. 2. 3 Fi l l i ng Mat er i al

2. 2. 4 Bul k Anode

PART 3 EXECUTI ON

3. 1 CONCRETE SPALL REPAI R

3. 1. 1 Pr epar at i on

3. 1. 2 Mi x i ng Mat er i al s

3. 1. 3 Pl acement

3. 1. 4 Cur i ng

3. 2 CATHODI C PROTECTI ON PI LE JACKET

3. 2. 1 Gener al

3. 2. 2 Sur f ace Pr epar at i on

3. 2. 2. 1 I nspect i on

SECTI ON 03 01 30. 71 Page 1

3. 2. 2. 2 Sur f ace Pr epar at i on

3. 2. 2. 3 Concr et e Removal

3. 2. 3 Zi nc Anode

3. 2. 3. 1 I nst al l at i on

3. 2. 3. 2 Connect i on Wi r es

3. 2. 4 For ms

3. 2. 5 Fi l l Mat er i al

3. 2. 5. 1 Pl acement

3. 2. 5. 2 Cur i ng

3. 2. 5. 3 Access Hol e

3. 2. 6 Bul k Zi nc Anode

3. 2. 6. 1 I nst al l at i on

3. 2. 6. 2 Connect i on

3. 2. 7 Negat i ve Connect i ons

3. 2. 7. 1 Gener al

3. 2. 7. 2 Connect i on Wi r e

3. 2. 7. 3 Ter mi nal Box

3. 2. 7. 4 Cont i nui t y

3. 2. 8 Ener gi z i ng t he Syst em

3. 3 FI ELD QUALI TY CONTROL

3. 3. 1 Sampl i ng

3. 3. 2 Test i ng

3. 3. 3 I nspect i on

3. 3. 4 Cat hodi c Pr ot ect i on Speci al i s t

- - End of Sect i on Tabl e of Cont ent s - -

SECTI ON 03 01 30. 71 Page 2

SECTI ON 03 01 30. 71

CONCRETE REHABI LI TATI ON

PART 1 GENERAL

1. 1 REFERENCES

The publ i cat i ons l i s t ed bel ow f or m a par t of t hi s speci f i cat i on t o t he ext ent r ef er enced. The publ i cat i ons ar e r ef er r ed t o wi t hi n t he t ext by t he basi c desi gnat i on onl y.

ASTM I NTERNATI ONAL ( ASTM)

ASTM B418 ( 2016) St andar d Speci f i cat i on f or Cast and Wr ought Gal vani c Zi nc Anodes

ASTM B69 ( 2013) St andar d Speci f i cat i on f or Rol l ed Zinc

ASTM C117 ( 2013) St andar d Test Met hod f or Mat er i al s Fi ner t han 75- um ( No. 200) Si eve i n Mi ner al Aggr egat es by Washi ng

ASTM C136/ C136M ( 2014) St andar d Test Met hod f or Si eve Anal ysi s of Fi ne and Coar se Aggr egat es

ASTM C31/ C31M ( 2015a; E 2016) St andar d Pr act i ce f or Maki ng and Cur i ng Concr et e Test Speci mens i n t he Fi el d

ASTM C39/ C39M ( 2016b) St andar d Test Met hod f or Compr essi ve St r engt h of Cyl i ndr i cal Concr et e Speci mens

ASTM D256 ( 2010) Det er mi ni ng t he I zod Pendul um I mpact Resi st ance of Pl ast i cs

ASTM D2583 ( 2013a) I ndent at i on Har dness of Ri gi d Pl ast i cs by Means of a Bar col I mpr essor

ASTM D570 ( 1998; E 2010; R 2010) St andar d Test Met hod f or Wat er Absor pt i on of Pl ast i cs

ASTM D638 ( 2014) St andar d Test Met hod f or Tensi l e Pr oper t i es of Pl ast i cs

ASTM D790 ( 2015; E 2016; E 2016) Fl exur al Pr oper t i es of Unr ei nf or ced and Rei nf or ced Pl ast i cs and El ect r i cal I nsul at i ng Mat er i al s

ASTM D796 ( 1987) Compr essi on Mol di ng Test Speci mens of Phenol i c Mol di ng Compounds

U. S. ARMY CORPS OF ENGI NEERS ( USACE)

EM 385- 1- 1 ( 2014) Saf et y and Heal t h Requi r ement s Manual

SECTI ON 03 01 30. 71 Page 3

1. 2 DEFI NI TI ONS

1. 2. 1 Lat ex Addi t i ve

A di sper si on of pol ymer par t i c l es i n wat er used t o modi f y por t l and cement mixes.

1. 3 GENERAL REQUI REMENTS

1. 3. 1 Concr et e Spal l Repai r s

Thi s wor k shal l consi st of t he r emoval of unsound concr et e and pl acement of a latex pol ymer modi f i ed por t l and cement mor t ar f or speci al appl i cat i ons and t he r est or at i on of det er i or at ed concr et e as i ndi cat ed on t he pl ans.

The wor k i ncl udes under deck spal l r epai r s f or t he nor t h t r est l e ( t wo sect i ons) , mai n whar f ( ni ne sect i ons) and t he sout h t r est l e ( t hr ee sections).

1. 3. 2 Cat hodi c Pr ot ect i on ( CP) Pi l e Jacket

The wor k i ncl udes r epai r of exi st i ng non- j acket ed pi l es ( Type " NS" Repai r s) r epai r of exi st i ng j acket ed pi l es ( Type " JS" Repai r s) f or t he nor t h t r est l e ( t wo sect i ons) , mai n whar f ( ni ne sect i ons) and t he sout h t r est l e ( t hr ee sect i ons) . Thi s wor k shal l consi st of suppl y i ng, i nst al l i ng and ener gi z i ng a sacr i f i c i al anode cat hodi c pr ot ect i on syst em, i ncl udi ng connect i on t o t he st eel , mat er i al s, t est i ng, and ensur i ng cont i nui t y bet ween al l embedded st eel component s on desi gnat ed pi l es on t he speci f i ed st r uct ur es. The sacr i f i c i al cat hodi c pr ot ect i on syst em shal l consi st of a z i nc anode conf i gur at i on t hat i s i nt egr al t o t he pi l e j acket syst em as manuf act ur ed by Jar den Zi nc Pr oduct s, Gr eenevi l l e, TN, Vect or Cor r osi on Technol ogi es, Wesl ey Chapel , FL or cat hodi c pr ot ect i on j acket wi t h equal per f or mance, and i nst al l ed on t he pi l es at t he el evat i on shown on t he const r uct i on pl ans. The cat hodi c pr ot ect i on j acket manuf act ur er shal l have a mi ni mum of 10 year s exper i ence i n pr ot ect i on of concr et e mar i ne st r uct ur es agai nst cor r osi on. The syst em shal l al so i ncl ude a bul k z i nc anode i nst al l ed on each pi l e r ecei v i ng a cat hodi c pr ot ect i on j acket per t he manuf act ur er ' s i nst al l at i on i nst r uct i ons. Thi s el evat i on shal l be suf f i c i ent t o pr ovi de i mmer si on of t he anode at al l t i mes. The pr oposed cat hodi c pr ot ect i on syst em wi t h shop dr awi ngs and pr oduct dat a shal l be submi t t ed f or Gover nment appr oval pr i or t o pur chase.

1. 4 SUBMI TTALS

Gover nment appr oval i s r equi r ed f or submi t t al s wi t h a " G" desi gnat i on;

submi t t al s not havi ng a " G" desi gnat i on ar e f or i nf or mat i on onl y. When used, a desi gnat i on f ol l owi ng t he " G" desi gnat i on i dent i f i es t he of f i ce t hat wi l l r evi ew t he submi t t al f or t he Gover nment . The f ol l owi ng shal l be submi t t ed i n accor dance wi t h Sect i on 01 33 00 SUBMI TTAL PROCEDURES:

SD- 01 Pr econst r uct i on Submi t t al s

Spal l I nspect i on Repor t ; GA

Di vi ng Oper at i ons Pl an; GA

Pi l e I nspect i on Repor t ; GA

Cat hodi c Pr ot ect i on Syst em; GA

SECTI ON 03 01 30. 71 Page 4

Cat hodi c Pr ot ect i on Qual i t y Cont r ol Pl an

Cont ai nment Pl an - Concr et e Removal

Wi r e Spl i ces and Connect i on I nsul at i ng Met hod

Met hod f or oper at i on and mat er i al s speci f i cat i ons

Resistent Wel di ng Equi pment and Pr ocedur e

SD- 02 Shop Dr awi ngs

Cat hodi c Pr ot ect i on ( CP) Pi l e Jacket ; GA

SD- 03 Pr oduct Dat a

Cat hodi c Pr ot ect i on Syst em; GA

SD- 04 Sampl es

Fi el d Mock- Ups; GA

SD- 05 Desi gn Dat a

Job Mi x For mul a; GA

SD- 06 Test Repor t s

Si eve Anal ysi s Test f or Aggregate

Lat ex Addi t i ve Test s

Spal l I nspect i on Repor t

El ect r i cal Cont i nui t y Test and Det ai l ed Repor t

Chemi cal Anal ysi s- Zi nch Mesh Anode

Ener gi z i ng Repor t and Spal l Si ze Log

SD- 07 Cer t i f i cat es

Cat hodi c Pr ot ect i on Speci al i s t ' s NACE Cer t i f i cat i on

Cat hodi c Pr ot ect i on Speci al i s t Shal l Si gn And Not ar i ze

SD- 08 Manuf act ur er ' s I nst r uct i ons

Latex Repai r Mat er i al

Submi t f or Mi x i ng and Appl y i ng

1. 5 I NSPECTI ON O[ F SPALLED AREAS

The si ze and l ocat i on of concr et e spal l ed ar eas shal l be coor di nat ed wi t h Cont r act or ' s QC per sonnel and t he Cont r act i ng Of f i cer ' s Repr esent at i ve ( COR) t o det er mi ne t he scope and measur ement s pr i or t o t he st ar t of wor k.

SECTI ON 03 01 30. 71 Page 5

1. 5. 1 Under deck Spal l s

The wor k i ncl udes r epai r of spal l ed ar eas under t he deck 2 i nches t o 3 i nches aver age dept h. As par t of t he base bi d wor k, t he Cont r act or shal l i nspect t he deck under t he whar f and pr epar e a wr i t t en r epor t t o i dent i f y and pr i or i t i ze spal l s f or r epai r . Spal l s shal l be pr i or i t i zed by t he sever i t y of t he def ect . The t hr ee cat egor i es of def ect s ar e hi gh pr i or i t y , medi um pr i or i t y , and l ower pr i or i t y . The i nspect i on r epor t shal l i ncl ude a spr eadsheet t abl e f or al l spal l def ect s i dent i f i ed and a pl an v i ew whi ch shows t he l ocat i on of each spal l wi t h a l abel i dent i f i er . For each spal l def ect , t he spr eadsheet t abl e shal l i ncl ude a l abel i dent i f i er , whar f sect i on, def ect l ocat i on, whar f f eat ur e ( pi l e cap, beam, under si de of deck, pi l e, et c. ) f or whi ch spal l def ect i s l ocat ed, ar ea i n squar e f eet of spal l , dept h of spal l i n i nches and pr i or i t y cat egor y. The spal l i nspect i on r epor t shal l be submi t t ed t o t he COR f or appr oval pr i or t o begi nni ng spal l r epai r s.

1. 5. 2 Pi l e Repai r Cr i t er i a

The cr i t er i a f or cat hodi c pr ot ect i on j acket r epai r s f or j acket ed and non- j acket ed pi l es ar e as f ol l ows:

a. Ext r eme damage r equi r i ng ext ensi ve r epai r s. Thi s i ncl udes pi l es t hat appear t o be de- l ami nat i ng or shear i ng.

b. Si gni f i cant damage. Pi l es wi t h l ar ge spal l ed ar eas and exposed r ei nf or c i ng st eel , and/ or cr acks gr eat er t han 1/ 4" wi de.

c. Moder at e damage. Pi l es wi t h mul t i pl e cr acks 1/ 8" t o 1/ 4" wi de.

1. 5. 3 St r uct ur al Pi l e Repai r Cr i t er i a

The cr i t er i a f or st r uct ur al cat hodi c pr ot ect i on j acket r epai r s i s as follows:

I f af t er c l eani ng and chi ppi ng wi t h a 15 pound pneumat i c hammer r eveal s 2 or mor e ver t i cal bar s wi t h gr eat er t han 25% l oss of sect i on.

1. 6 I NSPECTI ON OF PI LES

Di vi ng oper at i ons f or i nspect i on and const r uct i on shal l be conduct ed i n accor dance wi t h t he US Ar my Cor ps of Engi neer s ( USACE) Saf et y and Heal t h Requi r ement s Manual EM 385- 1- 1. Submi t Di v i ng Oper at i ons Pl an t o t he Cont r act i ng Of f i cer ' s Repr esent at i ve ( COR) f or appr oval .

1. 6. 1 Pi l es

As par t of t he base bi d wor k, t he Cont r act or shal l i nspect al l oct agonal pi l es under t he nor t h whar f t o det er mi ne t hei r condi t i on and pr epar e a wr i t t en r epor t t o i dent i f y and pr i or i t i ze pi l es f or r epai r . I nspect i on shal l i ncl ude t he above wat er and under wat er por t i ons of t he pi l es. Pi l es shal l be pr i or i t i zed by t he sever i t y of t he def ect . The t hr ee cat egor i es of def ect s ar e hi gh pr i or i t y , medi um pr i or i t y , and l ower pr i or i t y . The i nspect i on r epor t shal l i ncl ude a spr eadsheet t abl e f or al l pi l es i dent i f i ed t o be r epai r ed. For each pi l e i dent i f i ed t o be r epai r ed, t he spr eadsheet t abl e shal l i ncl ude whar f sect i on, pi l e l ocat i on, descr i pt i on of def ect , and pr i or i t y cat egor y. The Cont r act or shal l submi t t he pi l e i nspect i on r epor t f or t he Nor t h Whar f t o t he COR f or appr oval pr i or t o begi nni ng pi l e r epai r s. Fol l owi ng r evi ew of t he pi l e i nspect i on r epor t , SECTI ON 03 01 30. 71 Page 6 pi l es i dent i f i ed f or r epai r on t he cont r act dr awi ngs may change, but t he quant i t y f or each pi l e t ype r epai r shal l r emai n as i ndi cat ed i n t he bi d schedule.

1. 7 QUALI TY ASSURANCE

1. 7. 1 Desi gn Dat a

1. 7. 1. 1 Job Mi x For mul a

Submi t , at l east 15 days bef or e wor k commences, a j ob- mi x f or mul a f or each use of pol ymer l at ex modi f i ed cement mor t ar and pi l e j acket f i l l mat er i al .

Test r epor t s shal l accompany t he mi x desi gn. I dent i f y t he pr oposed sour ce of t he mat er i al s and st at e t he pr opor t i ons of aggr egat es and l at ex addi t i ve.

When det er mi ni ng j ob mi x, use sampl es of mat er i al s t o be used on t he j ob.

a. Tr i al bat ches: Per f or m a mi ni mum of t hr ee t r i al bat chi ngs i n a cer t i f i ed t est i ng l abor at or y.

b. Suppor t i ng cr i t er i a: I ncl ude i n t he submi t t al t he f ol l owi ng dat a f or each t r i al bat ch:

( 1) Pr opor t i ons by wei ght

( 2) Uni t wei ght s and speci f i c gr avi t i es of const i t uent s

( 3) Bat ch wei ght s

( 4) Compr essi ve st r engt hs of 3 by 6 i nch cyl i nder s, made i n accor dance wi t h ASTM C31/ C31M, ai r cur ed f or 7 days and t est ed i n accor dance wi t h ASTM C39/ C39MASTM C39/ C39M. Compr essi ve st r engt h shal l be a mi ni mum of 4000 psi .

( 5) Cur i ng t i me*

( 6) Bond st r engt h*

( 7) Dr yi ng shr i nkage*

* Requi r ed f or r epai r mor t ar onl y.

1. 7. 2 Test Repor t s

1. 7. 2. 1 Lat ex addi t i ve

I ncl ude t he f ol l owi ng:

a. Vi scosi t y

b. Consi st ency

c. Absor pt i on

d. Shr i nkage

e. Ther mal compat i bi l i t y

SECTI ON 03 01 30. 71 Page 7

1. 7. 3 Fi el d Mock- Ups

The Cont r act or shal l const r uct t wo f ul l - s i ze f i el d mock- ups of a cat hodi c pr ot ect i on j acket on an exi st i ng 20 i nch oct agonal ver t i cal pi l e and a 20 i nch oct agonal bat t er ed pi l e i dent i f i ed by t he Cont r act i ng Of f i cer ' s Repr esent at i ve ( COR) at t he Nor t h Whar f . The mock- ups shal l be compl et e and ut i l i ze al l component s and pr ocedur es depi ct ed on t he cont r act dr awi ngs f or a non- st r uct ur al cat hodi c pr ot ect i on j acket . The mock- ups shal l be compl et ed bef or e any wor k commences on cont r act i dent i f i ed pi l es. The Cont r act or shal l devel op and pr ovi de a power poi nt pr esent at i on t o t he COR det ai l i ng i n a st ep by st ep f ashi on how t he cat hodi c pr ot ect i on j acket i s t o be i nst al l ed and connect ed t o t he exi st i ng st eel r ei nf or cement . The pr ocedur e shal l be document ed wi t h phot ogr aphs. The mock- ups shal l ser ve as t he st andar d f or t he cat hodi c pr ot ect i on j acket s.

1. 8 DELI VERY, STORAGE, AND HANDLI NG

I nspect mat er i al s del i ver ed t o s i t e f or damage, unl oad and st or e wi t h a mi ni mum of handl i ng. Remove f r om j ob s i t e unused mi xed mat er i al s whi ch have r eached end of wor ki ng or pot l i f e.

1. 9 WEATHER LI MI TATI ONS

Hal t wor k when weat her condi t i ons det r i ment al l y af f ect t he qual i t y of pat chi ng or bondi ng concr et e. Appl y pat chi ng mat er i al s onl y when t he cont act sur f aces ar e compl et el y dr y and i f t he at mospher i c and sur f ace t emper at ur e r anges ar e sui t abl e f or t he speci f i ed mat er i al s. Fol l ow manuf act ur er ' s i nst r uct i ons f or weat her condi t i ons and t emper at ur e r anges.

1. 10 TRAFFI C CONTROL

Do not per mi t vehi cul ar or heavy equi pment t r af f i c on t he whar f deck i n t he wor k ar ea dur i ng t he cur i ng per i od. At t he end of t he cur i ng per i od, l i ght l ocal t r af f i c may be per mi t t ed on t he whar f deck i f appr oved by t he Cont r act i ng Of f i cer or hi s/ her desi gnat ed r epr esent i ve.

1. 11 EQUI PMENT

Use a cont ai ner r ecommended by t he manuf act ur er as t he mi xi ng vessel . Use a power dr i ve ( ai r or spar k- pr oof ) pr opel l er t ype bl ade f or mi xi ng except t hat hand mi xi ng may be used f or smal l bat ches. Use equi pment speci f i ed by l at ex manuf act ur er f or f i el d mi xi ng of aggr egat es and l at ex addi t i ve.

PART 2 PRODUCTS

2. 1 CONCRETE SPALL REPAI R

2. 1. 1 Mat er i al s

The mat er i al s used i n pr oduci ng l at ex pol ymer modi f i ed por t l and cement mor t ar shal l meet t he r equi r ement s descr i bed her ei n. The l at ex pol ymer modi f i ed por t l and cement mor t ar shal l be used f or spal l r epai r s, but not f or pi l e j acket s.

A. Por t l and cement shal l be Type I or Type I I meet i ng t he r equi r ement s of Sect i on 03 31 29.

B. Fi ne aggregate shal l meet t he r equi r ement s of Sect i on 03 31 29.

SECTI ON 03 01 30. 71 Page 8

C. Coar se aggregate shal l meet t he r equi r ement s of Sect i on 03 31 29.

D. The l at ex addi t i ve shal l be a pr oduct r et ar di ng t he penet r at i on of sal t i nt o t he r epai r ed st r uct ur e and demonst r at i ng bond of t he har dened concr et e t o t he subst r at e. Dat a shal l be pr ovi ded by t he Cont r act or and manuf act ur er of t he l at ex as par t of t he desi gn mi x i nf or mat i on r equi r ed by Par t 2. 1. 2 demonst r at i ng t he r equi r ed properties.

The pol ymer st yr ene but adi ene r at i o shal l be 66 t o 34% ( + 1 1/ 2%) by wei ght . The pol ymer i c emul si on shal l be st abi l i zed wi t h ani oni c, non i oni c and pol yor ganosi l oxane f l ui d sur f act ant s i n whi ch t he ani oni c sur f act ant shal l be a sodi um al kyl sul f at e. The aver age pol ymer par t i c l e s i ze shal l be f r om 1900 t o 2500 angst r oms. The emul si on shal l have a pH of f r om 9. 0 t o

10. 5 and shal l be whi t e i n col or . The mat er i al wei ght s f r om 8. 37 t o 8. 44 pounds per gal l on ( at 25 degr ees) .

2. 1. 2 Mi x Pr opor t i ons

Two t ypes of mi x pr opor t i oni ng ar e per mi t t ed, by wei ght and by vol ume, as appr opr i at e t o t he condi t i ons exi st i ng.

The mi ni mum r equi r ed wei ght s or vol umes of mat er i al s f or one bat ch of por t l and cement mor t ar ar e as f ol l ows:

By Wei ght By Vol ume

Por t l and Cement 94 l bs. 1 cu. f t .

Sand 235 l bs. ( dr y wt . ) 2. 25 cu. f t .

Coar se Aggr egat e* * 173. 8 l bs. ( dr y wt . ) 2. 0 cu. f t .

Lat ex Addi t i ve 37. 1 l bs. 4 1/ 2 gal s.

Wat er *

* As r ecommended by t he manuf act ur er of t he l at ex.

* * Coar se aggr egat e shal l be No. 57, No. 7 or No. 89.

Lat ex mor t ar may be made usi ng t he same vol umes or wei ght s of mat er i al s omi t t i ng t he coar se aggr egat e.

The Cont r act or shal l desi gnat e t he act ual mat er i al s and pr opor t i ons t o be used and he shal l submi t hi s desi gn mi x f or appr oval . The desi gn mi x desi gnat ed shal l be pr opor t i oned t o pr oduce t he r equi r ed st r engt h speci f i ed i n subpar agr aph Job Mi x For mul a as det er mi ned f r om l abor at or y t est cyl i nder s made f or appr oval of t he desi gn mi x.

2. 2 CATHODI C PROTECTI ON PI LE JACKET

2. 2. 1 Zi nc Anode

Zi nc anode shal l be cer t i f i ed agai nst ASTM B69 t est pr ocedur e. The zi nc anode syst em must be t est ed and meet t he f ol l owi ng chemi cal composi t i on ( chemi cal anal ysi s t o be pr ovi ded wi t h t he mat er i al submi t t al s) .

a. Pb 0. 003% wt . max.

b. Fe 0. 001% wt . max.

c. Cd 0. 003% wt . max.

d. Al 0. 001% wt . max.

e. Ti 0. 001% wt . max.

f . Cu 0. 9% wt . max.

SECTI ON 03 01 30. 71 Page 9

g. Zn bal ance

Addi t i onal l y, t he anode shal l have t he f ol l owi ng physi cal pr oper t i es:

a. El ect r i cal conduct i v i t y = 28% mi n.

b. Sol i d z i nc densi t y = 0. 28 l bs/ i n3

c. Wei ght of z i nc = 1. 60 l b/ f t 2 mi n.

d. Aver age open ar ea = 53%

2. 2. 2 For m Mat er i al

The mat er i al f ur ni shed f or t he j acket f or ms must meet t he f ol l owi ng physi cal pr oper t y r equi r ement s:

a. Wat er Absor pt i on ( ASTM D570) - 1% max.

b. Ul t i mat e Tensi l e St r engt h ( ASTM D638) * - 15, 000 psi mi n.

c. Fl exur al St r engt h ( ASTM D796) - 25, 000 psi mi n.

d. Fl exur al Modul us of El ast i c i t y ( ASTM D790) - 700 ksi mi n.

e. I ZOD I mpact ( ASTM D256) - 15 f t - l b/ i nch mi n. ( unnot ched) f . Bar col Har dness ( ASTM D2583) - 45 mi n.

2. 2. 3 Fi l l i ng Mat er i al

Fi l l i ng mat er i al f or pi l e j acket s shal l consi st of a mi xt ur e of Por t l and cement , f i ne aggregate , wat er and appr oved admi xt ur e. The use of f l y ash or s l ag i n t he mi x i s al l owed f or nonst r uct ur al and st r uct ur al j acket s.

See sect i on 03 31 29 f or addi t i onal concr et e r equi r ement s and f or f l y ash and sl ag l i mi t s. The f i l l i ng mat er i al shal l cont ai n 1, 000 pounds of cement per cubi c yar d wi t h suf f i c i ent wat er t o pr oduce a wor kabl e mi x. The f i ne aggr egat e shal l be c l ean si l i ca sand and t her e shal l not be any addi t i ves cont ai ni ng chl or i des or ot her sal t s cor r osi ve t o met al s. A mi ni mum 28- day compr essi ve st r engt h of 5, 000 psi i s r equi r ed f or al l pi l e j acket s.

St r uct ur al j acket s shal l r equi r e a 5, 000 psi concr et e wi t h 3/ 8 i nch max.

f i ne aggr egat e.

2. 2. 4 Bul k Anode

The bul k anode shal l be a 50 l b, 99% pur e z i nc anode ( hul l t ype anode) wi t h a st eel st r ap cor e, conf or mi ng t o ASTM B418 Type I .

PART 3 EXECUTI ON

3. 1 CONCRETE SPALL REPAI R

3. 1. 1 Pr epar at i on

Sur f ace Pr epar at i on of l at ex pol ymer modi f i ed por t l and cement mor t ar shal l be pl aced over c l ean, st r uct ur al l y sound concr et e. Det er i or at ed concr et e shal l be r emoved t o sound mat er i al by chi ppi ng wi t h an i mpact hammer not exceedi ng 15 pounds. Concr et e t hat i s cont ami nat ed wi t h gr ease or oi l shal l be r emoved. I mbedded st r uct ur al s t eel sur f aces shal l be bl ast ed c l ean t o l eave a whi t e met al sur f ace.

Al l r ei nf or c i ng bar s exposed af t er c l eani ng shal l be t hor oughl y bl ast cleaned.

Exi st i ng concr et e sur f aces whi ch wi l l be i n cont act wi t h f r eshl y pl aced l at ex modi f i ed por t l and cement concr et e shal l be bl ast ed c l ean t hen wet t ed wi t h wat er f or a per i od of one hour pr i or t o concr et i ng. No f r ee st andi ng

SECTI ON 03 01 30. 71 Page 10 wat er shal l be l ef t on t he pr epar ed sur f ace.

3. 1. 2 Mi x i ng Mat er i al s

Make bat ches smal l enough t o ensur e pl acement bef or e bi nder set s. Mi x mat er i al s i n accor dance wi t h manuf act ur er ' s r ecommendat i ons.

The mi xer s shal l be c l ean and t he i ngr edi ent s accur at el y pr opor t i oned. The modi f i ed por t l and cement concr et e mat er i al s shal l be mi xed at t he s i t e i n accor dance wi t h t he speci f i c equi pment r equi r ement s. The mat er i al , as di schar ged f r om t he mi xer , shal l be uni f or m i n composi t i on and consi st ency.

3. 1. 3 Pl acement

Gr out f r om t he l at ex modi f i ed mor t ar shal l be br ushed ont o t he wet t ed, pr epar ed sur f ace. Car e shal l be exer ci sed t o i nsur e t hat al l ver t i cal as wel l as hor i zont al sur f aces r ecei ve a t hor ough, even coat i ng and t hat t he r at e of pr ogr ess i s l i mi t ed so t hat t he br ushed mat er i al does not become dr y bef or e i t i s cover ed wi t h addi t i onal mat er i al as r equi r ed f or t he f i nal gr ade. Mat er i al used f or br ushi ng, whi ch has had t he mor t ar used up, shal l be di sposed of .

Lat ex modi f i ed por t l and cement mor t ar shal l not be pl aced at t emper at ur es bel ow 45 degr ees F, or above 85 degr ees F, unl ess adequat e pr ot ect i on i s pr ovi ded agai nst adver se ef f ect s of ext r eme t emper at ur e condi t i ons.

3. 1. 4 Cur i ng

Cur e mat er i al s i n accor dance wi t h manuf act ur er ' s r ecommendat i ons.

3. 2 CATHODI C PROTECTI ON PI LE JACKET

AMENDMENT 0001

3. 2. 1 Gener al

Zi nc anode j acket syst em shal l consi st of st ay- i n- pl ace fiberglass f or ms pr ovi ded wi t h a z i nc anode syst em f i l l ed wi t h an appr oved mi xt ur e of Por t l and cement , f i ne aggr egat e, wat er and appr oved admi xt ur e f or non- st r uct ur al and st r uct ur al j acket s. The syst em shal l al so i ncl ude t he i nst al l at i on of a z i nc bul k anode at an el evat i on bel ow t he l ow wat er mar k as shown on t he pl ans. Al t er nat i ve mat er i al s must be pr e- appr oved by t he Cont r act i ng Of f i cer ' s Repr esent at i ve ( COR) pr i or t o pl aci ng any or der s.

The cat hodi c pr ot ect i on j acket s shal l be i nst al l ed on t he desi gnat ed pi l es st ar t i ng at t he el evat i on det ai l ed i n t he const r uct i on pl ans, and ext endi ng upwar d t o t he r equi r ed el evat i on as al so shown i n t he const r uct i on pl ans.

Adj ust ment s t o t hese el evat i ons may be r equi r ed t o encompass pi l e def i c i ency and/ or avoi d t he pi l e caps at speci f i c l ocat i ons and must be appr oved by t he Engi neer pr i or t o pl aci ng t he j acket s. The cont r act or shal l f i el d ver i f y al l j acket l engt hs pr i or t o or der i ng.

AMENDMENT 0001

3. 2. 2 Sur f ace Pr epar at i on

3. 2. 2. 1 I nspect i on

The Cont r act or shal l i nspect al l pi l es desi gnat ed f or r epai r and l ocat e al l det er i or at ed concr et e ar eas on t he pi l i ngs t hat ar e t o r ecei ve cat hodi c pr ot ect i on. Wher e exi st i ng st andar d j acket s ar e pr esent , t hese shal l be r emoved down t o or i gi nal pi l e cr oss- sect i on. Ar eas t o r ecei ve j acket s and

SECTI ON 03 01 30. 71 Page 11

J&N PILE, DECK & MISC. REPAIRS W912PM18B0013

the surrounding concrete surfaces shall be sound tested by the contractor to determine the actual dimensions of the deteriorated concrete to be removed. Each new jacket should encompass the entire problem area within the specified jacket limits. The COR may add or delete piling repair and protection as necessary. Remove all delaminated, cracked or unsound concrete from the areas, which are hollow sounding when tested. Areas with visible cracks (up to 1/8 inch wide) may not need to be removed.

3.2.2.2 Surface Preparation

Surface preparation for piles shall include the removal of all loose or delaminated concrete, to provide a minimum of 1 inch clearance between exposed steel and the surrounding concrete in the damaged area. All reinforcing steel shall be maintained at original position and all exposed steel shall be sandblasted or hydro-blasted clean to a gray metal condition prior to concrete placement. No traces of rust, mill scale, epoxy or other contaminants shall be present after cleaning. Special attention shall be observed to ensure proper preparation of the backside of the reinforcing steel. Additionally the Contractor is responsible for removing all residue or marine growth in the areas where the bulk anode will be installed.

3.2.2.3 Concrete Removal

Spalled concrete removal and clean up under this type of work is considered incidental to the cathodic protection jacket installation. Care shall be exercised as to contain falling debris from entering into the water.

Debris includes but is not limited to scrap metal, demolition debris, concrete and concrete dust, zinc, etc. A containment plan shall be supplied by the Contractor for approval by the Contracting Officer or his/her designated representative prior to commencing any work.

3.2.3 Zinc Anode

3.2.3.1 Installation

Zinc anode shall be attached per the manufacturer's installation instructions and be certified against ASTM B69 test procedure.

3.2.3.2 Connection Wires

The expanded anode shall be provided with a connection wire which shall extend a minimum of 9 inches above the top of the jacket to perform the connection to the reinforcing steel inside the terminal box as shown in the plans.

AMENDMENT 0001

3.2.4 Forms

The forms shall be composed of a durable, inert corrosion resistant material with an interlocking joint along two opposite sides that will permit the form to be assembled and sealed in place around the pile. All joints need to be sealed for a grout-tight seal prior to placing any of the fill material. Forms shall be fabricated from fiberglass and polyester resins. The form dimensions shown in the plans are minimum dimensions permitted. The minimum thickness for standard grout filled jackets is 1/8 inch and for structural forms 3/16 inch. Upon placing the forms around the pile, they should be grout-tight and capable of maintaining their shape without assistance or damage. Jacket stand-offs may require field fabrication after removal of unsound concrete to assure proper alignment of

SECTION 03 01 30.71 Page 12

J&N PILE, DECK & MISC. REPAIRS W912PM18B0013

the jacket during fill material placement.

The inside-face of the jacket forms shall have no bond inhibiting agents in contact with the cement grout or anode. The forms shall be provided with nonmetallic bolt stand-offs which will maintain the forms in the required position. The forms shall be properly sealed in the field to provide a positive seal of the annular space between the pile and the form.

AMENDMENT 0001

3.2.5 Fill Material

3.2.5.1 Placement

Jackets measuring six feet or longer will require staged pumping ports.

Filling material shall not be dropped into the form from elevations greater than six feet. Filling material for jackets extending below water level shall be pumped from the bottom upward using the staged pumping ports. The pumping process shall continue after initial filling until no water is present at the highest discharge point of the jacket and a uniform grout consistency is achieved.

3.2.5.2 Curing

After the filling material has cured for a minimum 72 hours, all temporary form support and/or bracing shall be removed from the piles and the exterior of the forms shall be cleaned of any filling material which may have been deposited. The top of the jackets shall be sloped as shown in the construction drawings.

3.2.5.3 Access Hole

Following removal of the temporary bracing (stiff backs), a 1.5 inch diameter access hole shall be bored (no hammer drilling) through the integral pile jacket to the depth of the original pile concrete surface at an elevation of 12 inches above mean high tide. Location of the access holes shall be maintained constant on every pile. The inside surface of the access hole (except for the pile surface) shall be PVC or epoxy coated after the operation is completed.

3.2.6 Bulk Zinc Anode

3.2.6.1 Installation

The Contractor shall furnish and install a bulk zinc anode along with each cathodic protection integral pile jacket. The bulk anode shall be placed at an angle at the depth shown in the construction drawings. The contractor shall be responsible for any necessary information search and surveying work to determine the correct elevation on each pile. The bulk anode shall be a 50 lb, 99% pure zinc anode (hull type anode) with a steel strap core, conforming to ASTM B418 Type I. The steel strap shall be hot-dip galvanized with a minimum thickness of 0.05 inches. A hole shall be drilled at each end of the strap for mounting. Such hole shall be fabricated prior to galvanizing. Location and size of the holes are shown in the construction plans. The anode shall be clamped onto the pile using two, 2 inch galvanized steel channels with flange sides facing the concrete surface (as shown in the plans) using galvanized hardware.

SECTION 03 01 30.71 Page 13

3. 2. 6. 2 Connect i on

A No. 6 AWG copper st r and wi r e wi t h HMWPE i nsul at i on shal l be connect ed t o t he anode vi a a 3/ 8 i nch di amet er r ound st eel bar wel ded t o t he anode st r ap. The No. 6 AWG wi r e shal l be br azed t o t he bar , and t he bar - wi r e connect i on shal l be per manent l y encased i n a 1 1/ 4 - i nch di amet er by 8- i nch l ong PVC pi pe f i l l ed wi t h epoxy. The r emai nder wi r e shal l be r out ed t o t he j acket i nsi de a 3/ 4i nch di amet er PVC pi pe. Al l r equi r ed f abr i cat i on shal l be done pr i or t o t he anode i nst al l at i on. The wi r e i nsul at i on shal l be pr ot ect ed f r om heat dur i ng t he wel di ng and br azi ng oper at i on. Speci al pr ecaut i ons may be necessar y t o pr ot ect t he wi r i ng i nsul at i on and spl i ce dur i ng anode i nst al l at i on. The 3/ 4 i nch pi pe shal l ext end t o an el evat i on of appr oxi mat el y 2 i nches i nsi de t he bot t om of t he cat hodi c pr ot ect i on j acket . No condui t wi l l be r equi r ed on t he por t i on of wi r e i nsi de t he j acket . I nsi de t he j acket , t he wi r e shal l be r out ed per t he manuf act ur er ' s i nst r uct i ons t o pr oper l y connect wi t h t he z i nc anode. At t he t op of t he j acket , t he wi r e shal l be r out ed i n condui t t o t he PVC t er mi nal box l ocat ed i mmedi at el y above t he j acket . At t hi s l ocat i on, t he bul k anode wi r e shal l be connect ed t o t he z i nc anode wi r es and r out ed v i a connect i on t o a 5/ 16 i nch di amet er st ai nl ess st eel bol t t o t he r ei nf or c i ng st eel connect i on wi r e as shown i n t he const r uct i on dr awi ngs. Bul k anode i nst al l at i on shal l be per f or med pr i or t o pl acement of t he f i l l i ng mat er i al f or t he cat hodi c pr ot ect i on j acket .

3. 2. 7 Negat i ve Connect i ons

3. 2. 7. 1 Gener al

Cont i nui t y of t he pr est r essi ng st eel , r ei nf or c i ng st eel , dowel bar s, and spi r al t i es shal l be pr ovi ded by r esi st ance wel di ng or ot her appr oved met hod. On pi l es wher e a pi l e spl i ce i s det ect ed dur i ng c l ean up, cont i nui t y shal l be t est ed and pr ovi ded i f r equi r ed bet ween bot h pi l e sect i ons. On pi l es r ecei v i ng st r uct ur al cat hodi c pr ot ect i on j acket s, bot h t he new st eel r ei nf or cement and t he exi st i ng st eel member s must be made cont i nuous pr i or t o i nst al l i ng t he j acket syst em.

3. 2. 7. 2 Connect i on Wi r e

The Cont r act or shal l i nst al l an el ect r i cal negat i ve connect i on on each pi l e r ecei v i ng cat hodi c pr ot ect i on. The connect i on shal l be per f or med by br azi ng t wo No. 10 AWG THWN copper st r and wi r es t o di f f er ent ar eas of a hor i zont al t i e at t he el evat i on shown i n t he const r uct i on dr awi ngs. A suf f i c i ent l engt h of wi r e shal l be used such t hat t he wi r es can be r out ed t o t he t er mi nal box mount ed on t he pi l e wi t hout any spl i ces. Thi s l ocat i on shal l be mai nt ai ned const ant at ever y pi l e unl ess ot her wi se appr oved by t he Engi neer and t he Cat hodi c Pr ot ect i on Speci al i s t . The br azed par t of t he negat i ve connect i on wi r e ( at t he spi r al t i es) shal l r ecei ve a coat of 100% sol i ds, non- conduct i ve epoxy such t hat no wi r e or br azi ng mat er i al wi l l be i n cont act wi t h t he concr et e when pat chi ng. The wi r e shal l be br azed t o a mi ni mum l engt h of t he spi r al t i e of 1 i nch. Al l connect i on l ead wi r es shal l be r out ed t o t he PVC t er mi nal box l ocat ed i mmedi at el y above t he expanded zi nc cat hodi c pr ot ect i on j acket syst em as shown i n t he dr awi ngs.

The negat i ve l ead shal l be connect ed t o t he wi r e or i gi nat i ng at t he cat hodi c pr ot ect i on j acket anode and t o t he bul k anode wi r e i n t he t er mi nal box. Sol der ed el ect r i cal r i ng connect or s shal l be used f or t he connect i on. Connect i on bet ween t he r i ng connect or s shal l be made usi ng 316 st ai nl ess st eel bol t s, nut s and washer s. The connect i on shal l be pr oper l y i nsul at ed af t er compl et i on. Wi r e spl i ces and connect i on i nsul at i ng met hod and mat er i al s shal l be submi t t ed t o t he Cont r act i ng Of f i cer ' s

SECTI ON 03 01 30. 71 Page 14

Repr esent at i ve f or appr oval pr i or t o per f or mi ng t hi s wor k.

3. 2. 7. 3 Ter mi nal Box

The t er mi nal pl aced above t he j acket s t o house t he anode t o st eel connect i ons shal l be 4 i nch by 4 i nch by 2 i nch or ot her sui t abl e s i ze wi t h weat her t i ght cover and shal l be at t ached t o t he concr et e wi t h f our st ai nl ess st eel f ast ener s per box. Al l PVC component s shal l be schedul e 80, sunl i ght r esi st ant . Al l har dwar e f or i nst al l at i on of t he PVC condui t and t er mi nal box shal l be 316 gr ade st ai nl ess st eel . El evat i on of t he t er mi nal box shal l be mai nt ai ned const ant t hr oughout t he pr oj ect .

A 0. 1 ohm shunt shal l be pl aced i nsi de t he t er mi nal box and wi r es f or measur i ng t he cur r ent shal l be r out ed t o t wo, ¼ i nch di amet er st ai nl ess st eel bol t s t hat shal l ext end out s i de t he box.

3. 2. 7. 4 Cont i nui t y

Concr et e excavat i on t o expose t he hor i zont al t i e shal l be per f or med i nsi de t he j acket l i mi t s. Di mensi ons of t he excavat i on shal l be kept t o a mi ni mum but not exceed 4 i nch by 4 i nch. Rout i ng wi r es out s i de t he excavat i on t o t he condui t syst em shal l be per f or med i nsi de t he j acket condui t at t ached t o t he t er mi nal box. The Cont r act or shal l submi t det ai l s of t he i nt ended met hod f or t hi s oper at i on and mat er i al s speci f i cat i ons f or appr oval by t he Cont r act i ng Of f i cer or hi s/ her desi gnat ed r epr esent at i ve. The Cont r act or shal l ver i f y cont i nui t y bet ween t he connect i ons and t he spi r al t i e pr i or t o coat i ng wi t h epoxy. Repai r any connect i on t est i ng di scont i nuous at no ext r a cost . Af t er connect i on i s appr oved, t he excavat i on shal l be f i l l ed wi t h an appr oved mor t ar pr i or t o t he j acket i nst al l at i on. Pr i or t o i nst al l i ng t he j acket s, t he Cat hodi c Pr ot ect i on Speci al i s t shal l per f or m an el ect r i cal cont i nui t y t est bet ween al l r ei nf or c i ng bar s, spi r al t i es, and dowel bar s ( i f pr esent ) on al l pi l es r ecei v i ng cat hodi c pr ot ect i on. The Cat hodi c Pr ot ect i on Speci al i s t shal l cer t i f y such t est s cor r ect and a det ai l ed r epor t shal l be pr ovi ded t o t he Cont r act i ng Of f i cer ' s Repr esent at i ve at t he end of t he pr oj ect .

Rei nf or c i ng bar s and dowel s f or cont i nui t y t est shal l be exposed by dr i l l i ng a 3/ 4 i nch di amet er hol e t o each st r and and/ or dowel i n t he concr et e and measur i ng i nt er - bar ( or dowel ) vol t age usi ng a hi gh i mpedance vol t met er . Dr i l l hol es i n a st agger ed pat t er n wi t hi n t he l i mi t s of t he j acket . Usi ng exi st i ng exposed st eel f or cont i nui t y t est i ng when possi bl e.

Some addi t i onal chi ppi ng may be necessar y t o expose t he bar s and/ or dowel s.

Wher e cont i nui t y cor r ect i on i s r equi r ed, addi t i onal concr et e excavat i on wi l l be necessar y. Si ze of cont i nui t y cor r ect i on excavat i on shal l be mai nt ai ned at t he mi ni mum r equi r ed t o expose t he di scont i nuous t o a cont i nuous adj acent bar as shown i n t he const r uct i on pl ans or advi sed by t he Cont r act i ng Of f i cer or hi s/ her desi gnat ed r epr esent at i ve. On pi l es wher e di scont i nuous st r ands ar e f ound on t wo or mor e f aces of t he pi l e, saw- cut a 3- i nch wi de gr oove at an el evat i on no l ess t han 6 i nches bel ow t he t op of t he j acket . Cont i nui t y shal l t hen be pr ovi ded t o al l s t r ands i nsi de t he gr oove. Any hol e and/ or excavat i on f or cont i nui t y t est i ng shal l be f i l l ed wi t h an appr oved concr et e r epai r mor t ar pr i or t o pl aci ng t he j acket s. Speci al car e shal l be obser ved t o avoi d cut t i ng any of t he bar s or spi r al t i es dur i ng t he dr i l l i ng or saw cut t i ng oper at i on.

I f i nst al l i ng t he expanded zi nc j acket syst em as r ei nf or ced concr et e j acket s ( st r uct ur al ) , el ect r i cal cont i nui t y shal l be pr ovi ded bet ween t he j acket r ei nf or cement and t he pi l i ng r ei nf or c i ng st r ands. Thi s shal l be accompl i shed ei t her by connect i ng t wo bond wi r es f r om t he new r ei nf or cement cage t o a sol i d spi r al t i e wi r e, or by r out i ng i ndependent wi r e f r om t he

SECTI ON 03 01 30. 71 Page 15 new r ei nf or cement cage di r ect l y t o t he t er mi nal box f or connect i on wi t h t he ot her l ead wi r es.

Pr ovi de cont i nui t y by r esi st ance wel di ng t wo cont i nuous sol i d st eel wi r es t o each st r and r equi r i ng cont i nui t y cor r ect i on i ns i de t he excavat i on.

Re- t est cont i nui t y on al l bar s af t er t hi s oper at i on i s compl et ed. Al l wel ds shal l be appr oved sat i sf act or y by t he Cont r act i ng Of f i cer or hi s/ her desi gnat ed r epr esent at i ve, appoi nt ed i nspect or or cat hodi c pr ot ect i on speci al i s t bef or e coat i ng wi t h epoxy. Cont i nui t y wel ds shal l r ecei ve a coat of 100% sol i ds, non- conduct i ve epoxy such t hat no wel ded wi r e shal l be i n cont act wi t h t he concr et e when pat chi ng. I nt ended r esi st ance welding equi pment and pr ocedur e shal l be i ncl uded and submi t t ed f or appr oval i n t he shop dr awi ngs pr i or t o per f or mi ng t hi s wor k.

3. 2. 8 Ener gi z i ng t he Syst em

The Cat hodi c Pr ot ect i on Speci al i s t shal l submi t a r epor t t o t he Cont r act i ng Of f i cer or hi s/ her desi gnat ed r epr esent at i ve det ai l i ng: cont i nui t y t est i ng and cor r ect i on, anode t o st eel r esi st ance, ener gi z i ng cur r ent , and st at i c and ener gi zed on and of f pot ent i al s f or each pi l e. Pot ent i al s shal l be measur ed wi t h a r ef er ence el ect r ode pl aced i n t he wat er and i n t he access hol e. The ener gi z i ng r epor t and t he Cont r act or ' s spal l s i ze l og shal l be submi t t ed t o t he Cont r act i ng Of f i cer or hi s/ her desi gnat ed r epr esent at i ve at t he compl et i on of t he pr oj ect .

3. 3 FI ELD QUALI TY CONTROL

3. 3. 1 Sampl i ng

As soon as mat er i al s ar e avai l abl e f or sampl i ng, obt ai n by r andom sel ect i on a sampl e of each bat ch. Cl ear l y i dent i f y sampl es by desi gnat ed name, speci f i cat i on number , bat ch number , pr oj ect cont r act number , i nt ended use and quant i t y i nvol ved.

3. 3. 2 Test i ng

Test sampl es by an appr oved l abor at or y. I f a sampl e f ai l s t o meet speci f i cat i on r equi r ement s af t er t wo t est s, r epl ace t he bat ch r epr esent ed by t he sampl es t est ed and r et est . Test aggr egat es i n accor dance wi t h ASTM C117 and ASTM C136/ C136M.

3. 3. 3 I nspect i on

Check each r epai r ed spal l ar ea f or cr acks, spal l s, popout s and l oss of bond bet ween r epai r ed ar ea and sur r oundi ng concr et e. Check each r epai r ed ar ea f or voi ds by t appi ng wi t h a hammer or st eel r od and l i s t eni ng f or dul l or hol l ow sounds. I mmedi at el y r epai r def ect s.

3. 3. 4 Cat hodi c Pr ot ect i on Speci al i s t

The cont r act or shal l secur e t he ser vi ces of a Cat hodi c Pr ot ect i on Speci al i s t accr edi t ed by t he Nat i onal Associ at i on of Cor r osi on Engi neer s ( NACE) , a pr of essi onal engi neer , r egi st er ed i n t he st at e of Nor t h Car ol i na wi t h a mi ni mum of f i ve year s of exper i ence i n t he f i el d of cat hodi c pr ot ect i on on concr et e, or a cor r osi on engi neer i ng pr act i t i oner wi t h no l ess t han 12 year s of cer t i f i abl e exper i ence i n t he f i el d of cat hodi c pr ot ect i on on concr et e. The Cat hodi c Pr ot ect i on Speci al i s t , or t he t echni c i an under hi s di r ect i on, shal l super vi se t he over al l i nst al l at i on of t he cat hodi c pr ot ect i on syst em i ncl udi ng par t i c i pat i on wi t h t he cont r act or

SECTI ON 03 01 30. 71 Page 16 i n desi gni ng t he const r uct i on sequence, per f or mi ng r andom si t e v i s i t s t o over see ever y phase of t he wor k. The Cat hodi c Pr ot ect i on Speci al i s t shal l per sonal l y v i s i t t he pr oj ect s i t e at a mi ni mum f r equency of once per mont h.

Addi t i onal l y, t he speci al i s t shal l be r esponsi bl e f or al l t he cont i nui t y t est i ng, t est i ng al l t he cont i nui t y cor r ect i ons, and per f or mi ng t he i ni t i al ener gi z i ng on al l pi l es i ncl udi ng: cur r ent , st at i c , and ener gi zed pot ent i al measur ement s. The cat hodi c pr ot ect i on speci al i s t , or t he t echni c i an under hi s di r ect i on, shal l al so check f or shor t s bet ween t he anode and t he st eel and not i f y t he Cont r act or f or cor r ect i on as necessar y pr i or t o pl aci ng any j acket s. Test i ng f or shor t s wi l l be done bef or e and af t er t he f i l l i ng mat er i al s ar e set . The Cat hodi c Pr ot ect i on Speci al i s t ' s NACE cer t i f i cat i on shal l be submi t t ed t o t he Cont r act i ng Of f i cer or hi s/ her desi gnat ed r epr esent at i ve f or appr oval . Cost of t he Cat hodi c Pr ot ect i on Speci al i s t ser vi ces shal l be i nci dent al t o t he j acket i nst al l at i on.

The Cat hodi c Pr ot ect i on Speci al i s t shal l submi t a qual i t y cont r ol pl an f or appr oval pr i or t o commenci ng t he syst em i nst al l at i on. The qual i t y cont r ol pl an shal l i ncl ude qual i t y cont r ol pr ocesses, t est i ng pr ocedur ed, t est i ng equi pment , t est i ng f r equency, t est i ng cer t i f i cat i ons, dat a t r acki ng sheet s, et c. Cost of qual i t y cont r ol and t he Cat hodi c Pr ot ect i on Speci al i s t ser vi ces shal l be consi der ed i nci dent al , and i ncl uded i n t he cost of t he cat hodi c pr ot ect i on syst em.