Technical_Specification_(Revised)_Section_03_01_30.72_08.pdf

Mont gomer y Mi ddl e Wal l Cr ack St abi l i zat i on

SECTI ON TABLE OF CONTENTS

DI VI SI ON 03 - CONCRETE

SECTI ON 03 01 30. 72 08

COLD JOI NT ANCHORS

PART 1 GENERAL

1. 1 SCOPE

1. 2 RELATED WORK SPECI FI ED ELSEWHERE

1. 3 REFERENCES

1. 4 SUBMI TTALS

1. 5 ANCHOR I NSTALLATI ON PLAN

1. 6 DELI VERY, STORAGE, AND HANDLI NG

1. 7 QUALI TY ASSURANCE

1. 7. 1 Fabr i cat or Qual i f i cat i ons

1. 7. 2 I nst al l er Qual i f i cat i ons

1. 7. 3 Cer t i f i cat i on of Pr est r essi ng Techni c i ans

1. 7. 4 I nst al l at i on Dr awi ngs

1. 8 CONTROL OF CONCRETE DEBRI S

PART 2 PRODUCTS

2. 1 MATERI ALS

2. 1. 1 Mechani cal Expansi on Anchor s

2. 1. 1. 1 Cent r al i zer s

2. 1. 1. 2 Vent Tubes

2. 1. 1. 3 Gr out Tubes

2. 1. 1. 4 Encapsul at ed End Anchor age

2. 1. 2 Non- Shr i nk Gr out f or Anchor Dr i l l Hol es

2. 1. 3 Non- Shr i nk Gr out f or Anchor Recesses

2. 2 EQUI PMENT

2. 2. 1 Dr i l l i ng Equi pment

2. 2. 2 St r essi ng Equi pment

2. 2. 3 Test i ng Equi pment

2. 2. 4 Gr out Mi xer s

2. 2. 5 Power Saw and Hand- Hel d Chi ppi ng Hammer

2. 2. 6 I nspect i on Camer a

PART 3 EXECUTI ON

3. 1 I NSTALLATI ON

3. 1. 1 Dr i l l i ng

3. 1. 2 Al i gnment

3. 1. 3 Anchor Recesses

3. 1. 4 Sur f ace Pr epar at i on

3. 1. 5 Rod Pl acement

3. 1. 6 Anchor age I nst al l at i on

3. 1. 7 Pr est r essi ng Met hod and Equi pment

3. 1. 8 St r essi ng

3. 1. 8. 1 Gener al Requi r ement s

3. 1. 8. 2 Lock- of f

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3. 1. 9 Envi r onment al Requi r ement s f or Gr out i ng

3. 1. 10 Gr out Pl acement f or Anchor Dr i l l Hol es

3. 1. 11 Gr out Pl acement f or Anchor Recesses

3. 2 I NSPECTI ON

3. 3 FI ELD QUALI TY CONTROL

3. 3. 1 Pr oof Test

3. 3. 2 Dr i l l er Logs

3. 3. 3 Anchor Recor ds

3. 4 ACCEPTANCE

3. 4. 1 Gener al

3. 4. 1. 1 Movement

3. 4. 1. 2 I ni t i al Li f t - Of f Readi ng

3. 4. 2 Repl acement of Rej ect ed Anchor s

3. 5 MATERI ALS DI SPOSI TI ON RECORDS

3. 6 PHOTOGRAPHY

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

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SECTI ON 03 01 30. 72 08

COLD JOI NT ANCHORS

PART 1 GENERAL

1. 1 SCOPE

The wor k descr i bed i n t hi s sect i on consi st s of f ur ni shi ng al l pl ant , l abor , equi pment , and mat er i al s f or t he i nst al l at i on of col d j oi nt anchor s acr oss t he ver t i cal concr et e col d j oi nt / cr ack i n Monol i t h M- 6, M8 and M17.

1. 2 RELATED WORK SPECI FI ED ELSEWHERE

Sect i on 03 01 32 CONCRETE REHABI LI TATI ON FOR CI VI L WORKS.

1. 3 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 A123/ A123M ( 2015) St andar d Speci f i cat i on f or Zi nc ( Hot - Di p Gal vani zed) Coat i ngs on I r on and St eel Pr oduct s

ASTM A153/ A153M ( 2016) St andar d Speci f i cat i on f or Zi nc Coat i ng ( Hot - Di p) on I r on and St eel Hardware

ASTM A722/ A722M ( 2015) St andar d Speci f i cat i on f or Uncoat ed Hi gh- St r engt h St eel Bar f or Pr est r essi ng Concrete

ASTM C1107/ C1107M ( 2014a) St andar d Speci f i cat i on f or Packaged Dr y, Hydr aul i c- Cement Gr out (Nonshrink)

POST- TENSI ONI NG I NSTI TUTE ( PTI )

PTI DC35. 1 ( 2014) Recommendat i ons f or Pr est r essed Rock and Soi l Anchor s

U. S. NATI ONAL ARCHI VES AND RECORDS ADMI NI STRATI ON ( NARA)

29 CFR 1926. 1153 Respi r abl e Cr yst al l i ne Si l i ca

1. 4 SUBMITTALS

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 . Submi t t he f ol l owi ng i n accor dance wi t h Sect i on 01 33 00 SUBMI TTAL PROCEDURES:

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

Anchor I nst al l at i on Pl an; G, DO

Gr out Seepage Remedi at i on Pl an; G, DO

I nst al l er Qual i f i cat i ons; G, DO

Fabr i cat or Qual i f i cat i ons; G, DO

SD- 02 Shop Dr awi ngs

I nst al l at i on Dr awi ngs; G, DO

SD- 03 Pr oduct Dat a

Mechani cal Expansi on Anchor s; G, DO Non- Shr i nk Gr out f or Anchor Dr i l l Hol es; G, DO Non- Shr i nk Gr out f or Anchor Recesses; G, DO Bondi ng Agent ; G, DO Dr i l l i ng Equi pment ; G, RO Pr est r essi ng Met hod and Equi pment ; G, DO Gr out Mi xer s; G, RO Power Saw and Hand- Hel d Chi ppi ng Hammer ; G, RO St r essi ng Equi pment Test i ng Equi pment Encapsul at ed End Anchor age Plugs

SD- 06 Test Repor t s St r essi ng Recor ds; G, DO St r essi ng Equi pment Cal i br at i on Recor ds; G, DO

SD- 07 Cer t i f i cat es

Cer t i f i cat i on of Pr est r essi ng Techni c i ans; G, RO

Mechani cal Expansi on Anchor s; G, DO Non- Shr i nk Gr out f or Anchor Dr i l l Hol es; G, DO Non- Shr i nk Gr out f or Anchor Recesses; G, DO Bondi ng Agent ; G, DO

Cer t i f i cat es of compl i ance st at i ng t hat t he mat er i al s conf or m t o t he speci f i ed r equi r ement s.

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

Anchor i ng Syst em

SD- 09 Manuf act ur er ' s Fi el d Repor t s

Pr est r essi ng Oper at i ons Recor ds; G, DO

SD- 11 Cl oseout Submi t t al s

Mat er i al s Di sposi t i on Recor ds Phot ogr aphs of Anchor s Dr i l l er Logs

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Anchor Recor ds

1. 5 ANCHOR I NSTALLATI ON PLAN

The Cont r act or shal l devel op and submi t a pl an f or t he i nst al l at i on and gr out i ng of t he anchor s. The i ni t i al pl an shal l assume t hat t he anchor s shown on t he dr awi ngs wi l l be i nst al l ed. The pl an shal l i ncl ude a speci f i c sect i on t hat addr esses t he equi pment and met hods per t ai ni ng t o gr out i ng i n addi t i on t o t hat r equi r ed f or anchor i nst al l at i on. The st r essi ng sequence i s as shown on t he const r uct i on pl ans.

1. 6 DELI VERY, STORAGE, AND HANDLI NG

Mat er i al s shal l be del i ver ed t o t he j ob i n t he manuf act ur er ' s or i gi nal pr ot ect i ve mat er i al . The package l abel or accompanyi ng dat a sheet shal l i ncl ude t he f ol l owi ng i nf or mat i on as appl i cabl e: manuf act ur er , mi l l r un speci f i cat i on number , l ot number , and dat e of manuf act ur e. Mat er i al s shal l be handl ed and st or ed t o pr event damage. Mat er i al s st or ed at t he s i t e shal l be pl aced above gr ound on el evat ed, cover ed pl at f or ms.

1. 7 QUALI TY ASSURANCE

1. 7. 1 Fabr i cat or Qual i f i cat i ons

The anchor s shal l be f abr i cat ed by a manuf act ur er t hat has been i n t he pr act i ce of desi gni ng and f abr i cat i ng r ock anchor s s i mi l ar i n s i ze and scope t o t hi s pr oj ect f or at l east 10 year s.

1. 7. 2 I nst al l er Qual i f i cat i ons

The anchor s shal l be i nst al l ed by a f i r m whi ch i s r egul ar l y engaged i n t he i nst al l at i on of r ock anchor s and has at l east 10 year s exper i ence i n t he i nst al l at i on of s i mi l ar anchor s. The super i nt endent shal l have i nst al l ed anchor s on at l east f i ve pr oj ect s of s i mi l ar scope and si ze.

1. 7. 3 Cer t i f i cat i on of Pr est r essi ng Techni c i ans

Submi t cer t i f i cat i on of Pr est r essi ng Techni c i ans who wi l l use t he pr oposed syst em i n t he wor k. Cer t i f y by name t hat t hese t echni c i ans ar e t hor oughl y t r ai ned and ski l l ed i n t he use of t he syst em pr i or t o st ar t of pr est r essi ng operations.

1. 7. 4 I nst al l at i on Dr awi ngs

Submi t det ai l ed i nst al l at i on dr awi ngs f or st r essi ng col d j oi nt anchor s and accessor i es appr oved pr i or t o commenci ng t he wor k and showi ng t he t ype and si ze of anchor s and anchor ages, er ect i on met hods, sequence of st r essi ng and st r essi ng cal cul at i ons. The manuf act ur er ' s i nst r uct i ons shal l be submi t t ed f or t he pr oposed Anchor i ng Syst em.

1. 8 CONTROL OF CONCRETE DEBRI S

Concr et e and debr i s shal l not be al l owed t o f al l i nt o t he r i ver . Concr et e and debr i s shal l be cont r ol l ed, col l ect ed and r et ai ned near t o i t s poi nt of r emoval . The Cont r act or ' s met hod of debr i s cont r ol and r emoval shal l be descr i bed i n t he wor k pl an and must meet t he appr oval of t he Cont r act i ng Of f i cer . Concr et e or debr i s t hat f al l s i nt o t he r i ver shal l be col l ect ed by t he Cont r act or at hi s own expense.

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PART 2 PRODUCTS

2. 1 MATERIALS

2. 1. 1 Mechani cal Expansi on Anchor s

Col d j oi nt anchor s shal l be mechani cal expansi on t ype anchor s compr i sed of st eel r ods and mechani cal expansi on shel l head assembl i es. Al l component s shal l have Cl ass 1 cor r osi on pr ot ect i on i n accor dance wi t h PTI DC35. 1.

The anchor desi gn l oad, per t he manuf act ur er ' s pr oduct dat a, shal l be 72 ki ps +/ - 2 k i ps and shal l have a 2: 1 saf et y f act or . St eel r ods shal l conf or m t o ASTM A722/ A722M. St eel r ods shal l meet t he di amet er and l engt h shown on t he dr awi ngs. Expansi on shel l head assembl i es shal l be z i nc pl at ed and shal l not exceed 10. 5 i nches i n l engt h. Anchor har dwar e ( i . e.

hex nut s, washer s, bear i ng pl at es, gr out / vent t ubes) shal l be i n accor dance wi t h t he anchor manuf act ur er ' s r ecommendat i ons. Anchor r ods shal l be hot di p gal vani zed i n accor dance wi t h ASTM A123/ A123M. Anchor har dwar e shal l be hot di p gal vani zed i n accor dance wi t h ASTM A153/ A153M.

2. 1. 1. 1 Centralizers

Cent r al i zer s shal l be f abr i cat ed f r om pl ast i c, st eel or ot her appr oved mat er i al whi ch i s nondet r i ment al t o t he pr est r essi ng st eel . Wood shal l not be used. The cent r al i zer shal l be abl e t o suppor t t he t endon i n t he dr i l l hol e and posi t i on t he t endon so a mi ni mum of 0. 5 i nch of gr out cover i s pr ovi ded. Cent r al i zer s and spacer s shal l per mi t gr out t o f r eel y f l ow up t he dr i l l hol e.

2. 1. 1. 2 Vent Tubes

Vent t ubes used dur i ng gr out i ng oper at i ons, i f necessar y, shal l be any appr opr i at e t ype f or t he j ob, as r ecommended by t he suppl i er of t he anchors.

2. 1. 1. 3 Gr out Tubes

Gr out t ubes shal l be pol yet hyl ene t ubi ng or as r ecommended by t he anchor manuf act ur er and appr oved by t he Cont r act i ng Of f i cer . I nsi de di amet er of gr out t ubes shal l be adequat e t o f ul l y gr out t he ent i r e hol e.

2. 1. 1. 4 Encapsul at ed End Anchor age

Pr ovi de a cor r osi on i nhi bi t i ng encapsul at ed end anchor age sui t abl e f or per manent aggr essi ve cor r osi on condi t i ons i n accor dance wi t h t he manuf act ur er ' s r ecommendat i ons.

2. 1. 2 Non- Shr i nk Gr out f or Anchor Dr i l l Hol es

Non- shr i nk cement gr out f or anchor dr i l l hol es shal l be i n accor dance wi t h t he anchor manuf act ur er ' s r ecommendat i ons. Gr out shal l be sui t abl e f or condi t i ons exposed t o t he at mospher e and under wat er .

2. 1. 3 Non- Shr i nk Gr out f or Anchor Recesses

Non- shr i nk cement gr out f or anchor r ecesses at f ace of wal l shal l conf or m to ASTM C1107/ C1107M, shal l be a commer ci al f or mul at i on sui t abl e f or t he pr oposed appl i cat i on, and shal l be non- met al l i c . Gr out shal l be sui t abl e f or under wat er pl acement . Use bondi ng agent as r ecommended by t he manuf act ur er . I f t he Cont r act or wi shes t o gr out t he r ecesses wi t h t he

SECTI ON 03 01 30. 72 08 Page 6 same non- shr i nk gr out used f or anchor dr i l l hol e gr out i ng, wr i t t en appr oval shal l be pr ovi ded by t he anchor gr out manuf act ur er st at i ng t hat t he gr out pr oduct i s appl i cabl e f or t he speci f i c s i t uat i on and shal l i ncl ude an expl anat i on of any addi t i onal r equi r ement s ( i . e. addi t i on of sand, pea gr avel , et c. ) f or mi xi ng and pl aci ng t he gr out f or t he anchor recesses.

2. 2 EQUIPMENT

2. 2. 1 Dr i l l i ng Equi pment

Hol es shal l be cor e dr i l l ed. Cont r act or shal l ver i f y wi t h anchor manuf act ur er t hat met hod and equi pment used meet s t he r equi r ement s of t he manuf act ur er . Submi t a l et t er f r om t he manuf act ur er st at i ng t hat t he met hods and equi pment ar e accept abl e and t hat t he bond of t he gr out t o t he sur f ace of t he hol e i s adequat e. Dr i l l i ng equi pment shal l be i n accor dance wi t h t he anchor manuf act ur er ' s r ecommended i nst al l at i on pr ocedur es. Use r ot ar y dr i l l i ng equi pment of a t ype sui t abl e f or t he dept h, di amet er , and mat er i al t o be dr i l l ed. Use equi pment capabl e of mai nt ai ni ng t he r equi r ed al i gnment .

2. 2. 2 St r essi ng Equi pment

St r essi ng equi pment shal l be hydr aul i cal l y oper at ed and shal l have a capaci t y suf f i c i ent t o st r ess t he anchor s t o t he speci f i ed Test Loads wi t hi n t he r at ed capaci t y i n one st r oke. Pumps shal l be capabl e of appl y i ng each l oad i ncr ement i n l ess t han 60 seconds and shal l be capabl e of mai nt ai ni ng t he hydr aul i c pr essur e wi t hi n 50 psi . The equi pment shal l per mi t st r essi ng of t he anchor i n i ncr ement s and r ai s i ng or l ower i ng t he l oad i n t he t endon. The equi pment shal l be cal i br at ed wi t h an accur acy of +2 per cent and t he cal i br at i on cer t i f i cat e and gr aphs shal l be avai l abl e at t he s i t e. The pr oduct i on gage shal l have gr aduat i ons of 100 psi or l ess. A second cer t i f i ed gage shal l be mai nt ai ned f or per i odi c ver i f i cat i on of t he pr oduct i on gage. A di al gage or appr oved devi ce shal l be pr ovi ded t o measur e t ot al t endon el ongat i on at each l oad i ncr ement t o t he near est 0. 001 i nch. The di al gage shal l be capabl e of measur i ng t he ent i r e anchor movement wi t hout bei ng r eset . Cal i br at i on of gages shal l be ver i f i ed no mor e t han 30 cal endar days pr i or t o commenci ng wor k under t hi s cont r act and at s i x- mont h i nt er val s t hr oughout t he per i od of use.

2. 2. 3 Test i ng Equi pment

Pr ovi de t est i ng equi pment consi st i ng of a hydr aul i c j ack wi t h cal i br at ed pr essur e gage f or appl y i ng t he l oad and a di al gage or ver ni er scal e t o measur e anchor movement . The r am t r avel of t he st r essi ng equi pment shal l be not l ess t han t he t heor et i cal el ast i c el ongat i on of t he t ot al anchor l engt h at t he maxi mum Test Load. The pr essur e gage shal l be gr aduat ed i n 100 psi i ncr ement s. The st r essi ng equi pment and pr essur e gage must have been cal i br at ed as a uni t no mor e t han 30 cal endar days pr i or t o commenci ng wor k under t hi s cont r act and at s i x- mont h i nt er val s t hr oughout t he per i od of use. The movement measur i ng devi ce shal l have a mi ni mum t r avel equal t o t he t heor et i cal el ast i c el ongat i on of t he t ot al anchor l engt h at t he maxi mum Test Load wi t hout r eset t i ng t he devi ce.

2. 2. 4 Gr out Mi xer s

Mi xi ng equi pment f or anchor gr out shal l be i n accor dance wi t h t he gr out manuf act ur er ' s r ecommendat i ons. Use a hi gh- speed, hi gh- shear , col l oi dal t ype gr out mi xer capabl e of cont i nuous mechani cal mi xi ng t hat wi l l pr oduce

SECTI ON 03 01 30. 72 08 Page 7 uni f or m and t hor oughl y mi xed gr out whi ch i s f r ee of l umps and undi sper sed cement . The mi xer shal l be equi pped wi t h sui t abl e wat er and admi xt ur e measur i ng devi ces cal i br at ed t o r ead i n cubi c f eet and t ent hs.

2. 2. 5 Power Saw and Hand- Hel d Chi ppi ng Hammer

Power saws and hand- hel d chi ppi ng hammer s r equi r ed f or anchor r ecesses at f ace of wal l shal l meet t he r equi r ement s descr i bed i n Sect i on 03 01 32 CONCRETE REHABI LI TATI ON FOR CI VI L WORKS, wi t h t he except i on t hat t he power saw f or anchor r ecesses shal l be s i zed f or sawcut t i ng t o a 1 i nch dept h.

2. 2. 6 I nspect i on Camer a

Camer a f or i nspect i on of hol es pr i or t o i nser t i on of anchor s shal l be a down- t he- hol e camer a si mi l ar or equal t o GeoVi si on Del uxe Dual Scan wi t h hi gh r esol ut i on col or v i deo, hi gh i nt ensi t y LED l i ght s, 350 degr ee ver t i cal and hor i zont al t i l t and pan, l i ve v i deo r eadout of camer al dept h, di gi t al r ecor di ng of v i deo and user audi o dat e, and a col or obser vat i on scr een wi t h a mi ni mum di agonal di mensi on of 12" f or adequat e scal e of obser vat i on i n r eal t i me dur i ng v i deo r ecodi ng oper at i ons.

PART 3 EXECUTI ON

3. 1 INSTALLATION

3. 1. 1 Drilling

Dr i l l i ng met hods must compl y wi t h 29 CFR 1926. 1153. Advance hol es f r om t he l and chamber s i de of t he monol i t h t o appr oxi mat el y 12 i nches f r om t he f ace of t he r i ver chamber s i de of t he monol i t h. Reduce pr oduct i on r at e as r equi r ed as t he hol e becomes wi t hi n 12 t o 18 i nches of t he wal l f ace. The hol es shal l be l ocat ed as shown on t he dr awi ngs. The dr i l l hol e di amet er shown on t he dr awi ngs i s appr oxi mat e. The act ual dr i l l hol e di amet er shal l be as r ecommended by t he anchor manuf act ur er and shal l be of suf f i c i ent s i ze t o accommodat e cent r al i z i ng r i ngs, r od, and gr out . Hol es t hr ough exi st i ng st r uct ur es shal l be dr i l l ed i n accor dance wi t h par agr aph " Dr i l l i ng Equi pment " , her ei n, and shal l not cause damage t o t he sur r oundi ng st r uct ur e. The Cont r act or i s advi sed t hat f or ei gn mat er i al , i ncl udi ng r ei nf or ci ng st eel , f or m t i es, met al s and ot her mat er i al r emai ni ng f r om t he or i gi nal const r uct i on of t he exi st i ng st r uct ur e, may be encount er ed dur i ng dr i l l i ng t hr ough exi st i ng st r uct ur es. Hol es shal l be t empor ar i l y pl ugged t o pr event debr i s and wat er f r om ent er i ng t he hol es.

The pl ugs shal l r emai n i n pl ace f r om t he t i me dr i l l i ng i s compl et ed f or t he hol e unt i l i mmedi at el y pr i or t o i nst al l i ng t he anchor .

3. 1. 2 Alignment

The hol es shal l be l ocat ed wi t h or i ent at i ons as i ndi cat ed on t he dr awi ngs.

Lengt h, di amet er , di r ect i on, and i ncl i nat i on of al l anchor hol es shal l be checked and ver i f i ed by t he Cont r act or ever y 5 f eet t hr ough t he concr et e.

Pl umbness of t he dr i l l hol e shal l be checked wi t h a l evel i n t wo di r ect i ons ever y 5 f eet of dr i l l i ng. The devi at i on f r om t he speci f i ed i ncl i nat i on shal l not exceed 1. 0 degr ee i n t he appr oxi mat el y 23- f oot anchor hol e l engt h. The st r ai ght ness shal l be such t hat over t he 23- f oot hol e l engt h, t he maxi mum devi at i on f r om a st r ai ght l i ne bet ween t he ends of t he hol e shal l not exceed 0. 50 i nches. Each bar shal l have a mi ni mum of t hr ee cent r al i zer s. Cent r al i zer s shal l be pr ovi ded on t he bar s at a maxi mum 10- f oot cent er t o cent er spaci ng.

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3. 1. 3 Anchor Recesses

The anchor bear i ng pl at e shal l be r ecessed bel ow f ace of wal l as shown on t he dr awi ngs. Appr oxi mat e r ecess di mensi ons ar e pr ovi ded on t he dr awi ngs, however , t he s i ze of t he r ecess i n pl an shal l be per t he anchor manuf act ur er ' s r ecommendat i ons t o ensur e adequat e c l ear ance f or anchor st r essi ng. The r ecess dept h shal l pr ovi de 3 i nches of cover f r om end of anchor , mi ni mum. The r ecess per i met er shal l be del i neat ed wi t h a saw cut at l east 1 i nch deep. The per i met er saw cut shal l have no angl es l ess t han 90 degr ees. Removal of r emai ni ng concr et e wi t hi n r ecess per i met er not r emoved dur i ng dr i l l i ng shal l be accompl i shed usi ng hand- hel d chi ppi ng hammer s. Concr et e r emoval bel ow t he per i met er saw cut shal l cr eat e a dovet ai l ef f ect f or t he ver t i cal wal l s of t he r ecess, as shown on t he drawings.

3. 1. 4 Sur f ace Pr epar at i on

The sur f ace of t he hol e or r ecess t o r ecei ve gr out shal l be f r ee of al l f r ost , di r t , par t i c l es of concr et e dust , and ot her f or ei gn subst ances.

The hol e shal l be c l eaned by " bl owi ng" t he hol e wi t h wat er , ai r , or a combi nat i on t her eof . Pr i or t o anchor i nst al l at i on shal l be i nspect ed wi t h a camer a t o ver i f y t hat no voi d, cavi t i es or ot her def or mi t y exi st t hat al l ow f or a l oss of gr out dur i ng t he gr out oper at i on. The camer a shal l compl y wi t he t he r equi r ement s of par agr aph I nspect i on Camer a.

3. 1. 5 Rod Pl acement

Rods shal l be pl aced i n t he cent er of t he hol e and shal l be suppl i ed wi t h cent r al i z i ng r i ngs of pr oper s i ze and spaci ng t o mai nt ai n r od l ocat i on al i gnment i n accor dance wi t h par agr aph " Al i gnment " her ei n.

3. 1. 6 Anchor age I nst al l at i on

The bear i ng pl at e and nut shal l be i nst al l ed per pendi cul ar t o t he t endon, wi t hi n 3 degr ees, and cent er ed on t he t endon wi t hout bendi ng of t he st r essi ng st eel . Cor r osi on pr ot ect i on shal l be mai nt ai ned i nt act at t he anchor age and any damage shal l be r epai r ed pr i or t o st r essi ng.

3. 1. 7 Pr est r essi ng Met hod and Equi pment

Submi t St r essi ng Equi pment Cal i br at i on Recor ds f or r evi ew and appr oval by t he Cont r act i ng Of f i cer pr i or t o t he st ar t of pr est r essi ng oper at i ons.

Submi t descr i pt i ons of t he pr oposed pr est r essi ng met hods and equi pment i ndi cat i ng t he manuf act ur er of al l pr est r essi ng equi pment , i ncl udi ng t ensi oni ng j acks, st r ess measur ement gages, dynamomet er s, and l oad cel l s or ot her devi ces f or measur i ng st r essi ng l oads. Descr i pt i ons shal l i ncl ude cer t i f i ed cal i br at i on r ecor ds f or each set of j acki ng equi pment and t est i ng cur ves f or st r ess measur ement gages whi ch show t hat t he gages have been cal i br at ed wi t hi n t he l ast 60 cal endar days, and have been cal i br at ed f or t he j acks f or whi ch t hey ar e t o be used. Pr est r essi ng Oper at i ons Recor ds shal l be document ed by t he Cont r act or ' s QCM and shal l be submi t t ed t o t he Cont r act i ng of f i cer f or appr oval .

3. 1. 8 Stressing

3. 1. 8. 1 Gener al Requi r ement s

Anchor i nst al l at i on shal l be i n accor dance wi t h t he anchor manuf act ur er ' s pr ocedur es and r ecommendat i ons. Pr i or t o st r essi ng, sur f aces upon whi ch

SECTI ON 03 01 30. 72 08 Page 9 t he st r essi ng equi pment i s r est i ng must be cl ean and t he st r essi ng equi pment shal l be al i gned as near l y wi t h t he cent er of t he hol e as possi bl e. St r ess t he anchor i n accor dance wi t h t he anchor manuf act ur er ' s r ecommendat i on, subj ect t o t he appr oval of t he Cont r act i ng Of f i cer .

Desi gn and Lock- of f l oads ar e gi ven on t he dr awi ngs. Det er mi ne t he l ock- of f pr ocedur e so t hat t he l i f t - of f r esul t s meet t he accept ance cr i t er i a speci f i ed i n par agr aph Accept ance. The maxi mum st r ess shal l never exceed 80 per cent of t he guar ant eed ul t i mat e st r engt h of anchor st eel . The pr ocess of st r essi ng t he anchor s shal l be so conduct ed t hat accur at e el ongat i on of t he anchor st eel can at al l t i mes be r ecor ded and compar ed wi t h t he comput at i ons submi t t ed t o, and accept ed by t he Cont r act i ng Of f i cer . Saf et y pr ecaut i ons shal l be t aken t o pr event wor ker s f r om bei ng behi nd t he st r essi ng equi pment dur i ng st r essi ng. St r essi ng of t he anchor s shal l be per f or med i n t he sequence shown on t he dr awi ngs. Al l st r essi ng shal l be done i n t he pr esence of a r epr esent at i ve of t he Cont r act i ng Of f i cer . At no t i me dur i ng t he st r essi ng and t est i ng of an anchor shal l t he st r essi ng equi pment be di sconnect ed f r om t he t empor ar y st r essi ng head or anchor .

3. 1. 8. 2 Lock-off

Af t er compl et i on of t he al l r equi r ed t est s, t he l oad shal l be r et ur ned t o t he Al i gnment Load and t he speci f i ed Lock- of f Load shal l be appl i ed t o t he anchor . A l i f t - of f t est shal l be made t o ver i f y t he l oad i n t he anchor t endon bef or e t he t endon i s l ocked- of f and t he st r essi ng equi pment i s r emoved. The l i f t - of f r eadi ng shal l be wi t hi n f i ve per cent of t he speci f i ed l ock- of f l oad. I f t he l i f t - of f r eadi ng i s not wi t hi n f i ve per cent of t he speci f i ed l ock- of f l oad, t he anchor age shal l be r eset and anot her l i f t - of f r eadi ng shal l be made. Thi s pr ocedur e shal l be r epeat ed unt i l a sat i sf act or y l i f t - of f r eadi ng i s obt ai ned. Af t er l ock- of f and accept ance of t he anchor , t he anchor age r ecess shal l be f ul l y gr out ed f l ush wi t h t he adj acent sur f aces.

3. 1. 9 Envi r onment al Requi r ement s f or Gr out i ng

See Sect i on 03 01 32 CONCRETE REHABI LI TATI ON FOR CI VI L WORKS, par agr aph PROJECT/ SI TE CONDI TI ONS, subpar agr aph Envi r onment al Requi r ement s f or r equi r ement s f or pl aci ng cement - based gr out .

3. 1. 10 Gr out Pl acement f or Anchor Dr i l l Hol es

Pr i or t o gr out i ng hol es shal l be i nspect ed wi t h a camer a t o ver i f y t hat no voi d, cavi t i es or ot her def or mi t y exi st t hat al l ow f or a l oss of gr out dur i ng t he gr out oper at i on. The camer a shal l compl y wi t he t he r equi r ement s of par agr aph I nspect i on Camer a. Gr out f or anchor dr i l l hol es shal l not be pl aced unt i l t he Pr est r essi ng Oper at i ons Recor ds submi t t al i s appr oved by t he Cont r act i ng Of f i cer . Gr out shal l be mi xed and i nst al l ed i n accor dance wi t h t he manuf act ur er ' s wr i t t en i nst r uct i ons. The set t i me shal l be adj ust ed t o pr ovi de a uni f or m seal al ong t he t ot al l engt h of t he hol e wi t hout f l ash- set al ong any por t i on of t he hol e. Dur i ng t he gr out i ng oper at i ons, gr out i ng shal l begi n at t he bot t om of t he hol e ( i . e. pl acement v i a gr out t ube) and shal l cont i nue unt i l al l wat er and di l ut ed gr out has f l owed out of t he end of t he dr i l l ed hol e and compet ent gr out f l ows f r eel y f r om t he hol e. Af t er t he hol e has been gr out ed f or at l east 24 hour s, t he dr i l l ed hol e shal l be " t opped of f " wi t h addi t i onal gr out i f any set t l ement of t he gr out i n t he hol e has occur r ed. Compet ent gr out shal l ext end t he ent i r e l engt h of t he dr i l l ed hol e.

The Cont r act or shal l be awar e t hat t he condi t i on of t he cr ack i nt er f ace i s

SECTI ON 03 01 30. 72 08 Page 10 unknown and gr out deposi t i on may occur al ong t he cr ack j oi nt i nt er f ace.

Thi s condi t i on may r esul t i n pl acement of l ar ger gr out vol umes t han t hose det er mi ned. I t i s ant i c i pat ed t hat an addi t i onal 10% of gr out wi l l be r equi r ed due t o t hi s condi t i on. Moni t or t he vol ume of gr out bei ng pl aced and not i f y t he Cont r act i ng Of f i ce i mmedi at el y i n t he event t hat t he gr out exceeds t he ant i c i pat ed amount .

Dur i ng anchor dr i l l hol e gr out pl acement , Gover nment per sonnel wi l l be on si t e. I f gr out seepage i s encount er ed, al l anchor gr out i ng shal l be hal t ed Cont r act or shal l submi t a gr out seepage r emedi at i on pl an t o t he Cont r act i ng Of f i ce f or appr oval . Upon appr oval of t he pl an by t he Cont r act i ng Of f i cer , t he Cont r act or shal l per f or m t he necessar y wor k t o r emedy t he gr out seepage. Payment f or r equi r ed gr out seepage r emedi at i on wi l l be made i n accor dance wi t h Sect i on 00 70 00 CONDI TI ONS OF THE

CONTRACT, FAR 52. 243- 4 CHANGES.

3. 1. 11 Gr out Pl acement f or Anchor Recesses

Gr out f or t he anchor r ecesses shal l not be pl aced unt i l t he Cont r act i ng Of f i cer has appr oved gr out pl acement f or anchor dr i l l hol es. Revi ew of t he st r essi ng r ecor ds shal l be compl et ed and appr oved by t he Gover nment Cont r act i ng Of f i cer Pr i or t o gr out i ng of t he anchor r ecesses. Anchor r ecesses shal l be f i l l ed wi t h non- shr i nk gr out . Use bondi ng agent as r ecommended by t he manuf act ur er . Fi ni shed sur f aces shal l be f l ush wi t h exi st i ng f ace of wal l and shal l be br oom f i ni shed as descr i bed i n Sect i on

03 01 32 CONCRETE REHABI LI TATI ON FOR CI VI L WORKS.

3. 2 INSPECTION

The Cont r act or ' s f aci l i t i es shal l be open f or i nspect i on by t he Cont r act i ng Of f i cer at any t i me.

3. 3 FI ELD QUALI TY CONTROL

Dur i ng t he st r essi ng of each anchor , a r ecor d shal l be kept of gage pr essur e and of anchor el ongat i on at each st age of st r essi ng t o t he speci f i ed Lock- of f Load. Pr ovi de a qual i f i ed engi neer t o eval uat e t he anchor t est r esul t s and det er mi ne t he accept abi l i t y of t he anchor s i n accor dance wi t h t he cr i t er i a i ndi cat ed her eunder . Fi nal accept ance of each anchor wi l l be made by t he Cont r act i ng Of f i cer . Al l t est s shal l be r un i n t he pr esence of t he Cont r act i ng Of f i cer or hi s r epr esent at i ve.

3. 3. 1 Pr oof Test

Pr oof t est shal l consi st of i ncr ement al l y l oadi ng t he anchor and shal l be conduct ed i n accor dance wi t h PTI DC35. 1, Par agr aph 8. 3. 3. Dur i ng t he t est i ng of each anchor , a r ecor d shal l be kept of gage pr essur e and of anchor el ongat i on at each st age of st r essi ng t o t he Test Load r equi r ed by PTI DC35. 1. Measur ement s of t he el ongat i on of pr est r essi ng st eel shal l be made i n accor dance wi t h PTI DC35. 1. I f t he t ot al movement at t he end of 10 mi nut es at t he Test Load exceeds 0. 040 i nch, t he Test Load shal l be hel d an addi t i onal 50 mi nut es and t he movement r eadi ngs shal l be t aken at t he i nt er val speci f i ed i n PTI DC35. 1, Par agr aph 8. 3. 3. Test r ecor ds, i ncl udi ng pl ot s and gr aphi cal anal ysi s of t est dat a, shal l be f ur ni shed upon accept ance of each pr oof t est ed anchor i n accor dance wi t h par agr aph SUBMI TTALS. The pr oof t est r esul t s shal l be compar ed wi t h s i mi l ar anchor s i n whi ch per f or mance t est s have been per f or med. I f any s i gni f i cant var i at i on f r om t he pr oof t est s occur s, t he Cont r act i ng Of f i cer may r equi r e addi t i onal per f or mance t est s.

SECTI ON 03 01 30. 72 08 Page 11

3. 3. 2 Dr i l l er Logs

Submi t t he or i gi nal handwr i t t en l og and t hr ee ( 3) copi es i n t yped f or mat wi t hi n t wo wor k days of t he compl et i on of each hol e. Keep accur at e dr i l l er l ogs and r ecor ds of al l wor k accompl i shed under t hi s cont r act and del i ver compl et e, l egi bl e copi es of t hese l ogs and r ecor ds t o t he Cont r act i ng Of f i cer upon compl et i on of t he wor k or at such ot her t i me or t i mes as he may be di r ect ed. Al l such r ecor ds shal l be pr eser ved i n good condi t i on and or der by t he Cont r act or unt i l t hey ar e del i ver ed and accept ed, and t he Cont r act i ng Of f i cer shal l have t he r i ght t o exami ne such r ecor ds at any t i me pr i or t o t hei r del i ver y. Separ at e l ogs shal l be made f or each hol e. Use DRI LLI NG LOG, ENG FORM 1836 and 1836A or ot her appr oved f or m whi ch pr ovi des t he r equi r ed i nf or mat i on. The f ol l owi ng i nf or mat i on shal l be i ncl uded on t he l ogs or i n t he r ecor ds f or each hol e:

a. Hol e number or desi gnat i on and el evat i on of hol e.

b. Make and manuf act ur er ' s model desi gnat i on of dr i l l i ng equi pment .

c. Dat es and t i me when dr i l l i ng oper at i ons wer e per f or med.

d. Ti me r equi r ed f or dr i l l i ng each r un.

3. 3. 3 Anchor Recor ds

Upon compl et i on of i nst al l at i on of each anchor , t he anchor r ecor ds shal l be f ur ni shed t o t he Cont r act i ng Of f i cer . The l i f t - of f r esul t s shal l i ncl ude measur ed l engt hs of dr i l l hol es and anchor s, t he l oads and el ongat i ons r ecor ded dur i ng t est i ng, moni t or i ng and st r essi ng of t he anchor s, and gr aphs of t est r esul t s as speci f i ed i n par agr aph SUBMI TTALS.

I n addi t i on as- bui l t dr awi ngs showi ng t he compl et ed i nst al l at i on of t he anchor s shal l be f ur ni shed upon compl et i on of i nst al l at i on of al l anchor s.

3. 4 ACCEPTANCE

3. 4. 1 General

Accept ance of anchor s shal l be det er mi ned by t he Cont r act i ng Of f i cer . The f ol l owi ng cr i t er i a wi l l be used i n det er mi nat i on of t he accept abi l i t y of each anchor :

3. 4. 1. 1 Movement

Appar ent f r ee l engt h shal l be cal cul at ed f r om t he obser ved el ast i c movement i n accor dance wi t h PTI DC35. 1, Sect i on 8. 3. 2.

3. 4. 1. 2 I ni t i al Li f t - Of f Readi ng

The i ni t i al l i f t - of f r eadi ng shal l be wi t hi n 5 per cent of t he speci f i ed Lock- of f Load. I f t he anchor does not meet t hi s cr i t er i a, t he anchor shal l be adj ust ed as necessar y and t he l i f t - of f r eadi ng shal l be r epeat ed.

3. 4. 2 Repl acement of Rej ect ed Anchor s

Any anchor t hat f ai l s t he pr oof t est or i s r ej ect ed by t he Cont r act i ng Of f i cer shal l be r epl aced. A r epl acement anchor , i ncl udi ng a new anchor hol e, shal l be pr ovi ded by t he Cont r act or at no expense t o t he Gover nment . The l ocat i on of t he r epl acement anchor shal l be as di r ect ed

SECTI ON 03 01 30. 72 08 Page 12 by t he Cont r act i ng Of f i cer . Pr ovi de al l mat er i al s, suppl i es, equi pment , and l abor necessar y t o pr ovi de a new anchor assembl y t o t he sat i sf act i on of t he Cont r act i ng Of f i cer . No dr i l l i ng shal l be per f or med f or a r epl acement anchor unt i l t he gr out i ng of al l r ock anchor s wi t hi n 50 f eet of t he r epl acement anchor l ocat i on has been al l owed t o set f or at l east 24 hour s. Payment wi l l not be made f or r ej ect ed or f ai l ed anchor s. Ei t her r emove f ai l ed anchor s and t hor oughl y r eam and cl ear t he anchor hol e or r emove t he l oad and cut t he anchor and casi ng f l ush.

3. 5 MATERI ALS DI SPOSI TI ON RECORDS

Compi l e accur at e mat er i al s di sposi t i on r ecor ds, i dent i f y i ng al l mat er i al s i ncor por at ed i nt o t he wor k and showi ng t he di sposi t i on of speci f i c l ot s of appr oved t est ed mat er i al s. Submi t r ecor ds whi ch i dent i f y t he i ncor por at i on of appr oved mat er i al s i nt o t he wor k bef or e compl et i on of t he cont r act .

3. 6 PHOTOGRAPHY

The Cont r act or shal l , dur i ng t he pr ogr ess of t he wor k, f ur ni sh t he Cont r act i ng Of f i cer di gi t al l y pr oduced Phot ogr aphs of Anchor s. The camer a shal l have a CCD r esol ut i on no l ess t han 7. 0 mi l l i on pi xel s per i mage ( 3072 by 2304) whi ch wi l l pr ovi de enough det ai l t o pr i nt an 8" by 10" hi gh- r esol ut i on phot ogr aph. The camer a shal l pr oduce f i l es t hat al l ows t he user t o downl oad t he i mages ont o an I BM- compat i bl e per sonal comput er r unni ng Wi ndows 7, and al l ow t he i mages t o be saved i n one of t he f ol l owi ng gr aphi c f or mat s: JPG ( Joi nt Phot ogr aphi c Exper t s Gr oup) , TI FF ( Tagged I mage Fi l e For mat ) or BMP ( Wi ndows Bi t map) . The i mages shal l be submi t t ed as t wo ( 2) set s pr i nt ed i n col or i n 8" by 10" f or mat , and ( 1) el ect r oni c set i n one of t he di gi t al f or mat s st at ed above. The phot ogr aphs shal l i ncl ude:

1. Phot o of each anchor pr i or t o i nst al l at i on

2. Phot o of each anchor af t er gr out i ng and st r essi ng, pr i or t o backf i l l i ng anchor r ecesses

- - End of Sect i on - -

SECTI ON 03 01 30. 72 08 Page 13

1.8 CONTROL OF CONCRETE DEBRIS

3.4.2 Replacement of Rejected Anchors