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Ti nker AFB, OK TAFB Techni cal Spr ci f i cat i ons 2019

SECTI ON 04 20 00

UNI T MASONRY

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.

AMERI CAN CONCRETE I NSTI TUTE I NTERNATI ONAL ( ACI )

ACI SP- 66 ( 2004) ACI Det ai l i ng Manual

ASTM I NTERNATI ONAL ( ASTM)

ASTM A1008/ A1008M ( 2015) St andar d Speci f i cat i on f or St eel , Sheet , Col d- Rol l ed, Car bon, St r uct ur al , Hi gh- St r engt h Low- Al l oy and Hi gh- St r engt h Low- Al l oy wi t h I mpr oved For mabi l i t y , Sol ut i on Har dened, and Bake Har dened

ASTM A1064/ A1064M ( 2015) St andar d Speci f i cat i on f or Car bon- St eel Wi r e and Wel ded Wi r e Rei nf or cement , Pl ai n and Def or med, f or Concrete

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 A167 ( 2011) St andar d Speci f i cat i on f or St ai nl ess and Heat - Resi st i ng Chr omi um- Ni ckel St eel Pl at e, Sheet , and Strip

ASTM A185/ A185M ( 2007) St andar d Speci f i cat i on f or St eel Wel ded Wi r e Rei nf or cement , Pl ai n, f or Concrete

ASTM A615/ A615M ( 2015a; E 2015) St andar d Speci f i cat i on f or Def or med and Pl ai n Car bon- St eel Bar s f or Concr et e Rei nf or cement

ASTM A641/ A641M ( 2009a; R 2014) St andar d Speci f i cat i on f or Zi nc- Coat ed ( Gal vani zed) Car bon St eel Wi r e

ASTM A653/ A653M ( 2015) St andar d Speci f i cat i on f or St eel Sheet , Zi nc- Coat ed ( Gal vani zed) or Zi nc- I r on Al l oy- Coat ed ( Gal vanneal ed) by t he Hot - Di p Pr ocess

ASTM A951/ A951M ( 2011) St andar d Speci f i cat i on f or St eel Wi r e f or Masonr y Joi nt Rei nf or cement

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ASTM A996/ A996M ( 2015) St andar d Speci f i cat i on f or Rai l - St eel and Axl e- St eel Def or med Bar s f or Concr et e Rei nf or cement

ASTM B370 ( 2012) St andar d Speci f i cat i on f or Copper Sheet and St r i p f or Bui l di ng Const r uct i on

ASTM C1019 ( 2014) St andar d Test Met hod f or Sampl i ng and Test i ng Gr out

ASTM C1384 ( 2012a) St andar d Speci f i cat i on f or Admi xt ur es f or Masonr y Mor t ar s

ASTM C1611/ C1611M ( 2014) St andar d Test Met hod f or Sl ump Fl ow of Sel f - Consol i dat i ng Concr et e

ASTM C207 ( 2006; R 2011) St andar d Speci f i cat i on f or Hydr at ed Li me f or Masonr y Pur poses

ASTM C270 ( 2014a) St andar d Speci f i cat i on f or Mor t ar f or Uni t Masonr y

ASTM C476 ( 2010) St andar d Speci f i cat i on f or Gr out f or Masonr y

ASTM C494/ C494M ( 2015a) St andar d Speci f i cat i on f or Chemi cal Admi xt ur es f or Concr et e

ASTM C652 ( 2015) Hol l ow Br i ck ( Hol l ow Masonr y Uni t s Made f r om Cl ay or Shal e)

ASTM C67 ( 2014) St andar d Test Met hods f or Sampl i ng and Test i ng Br i ck and St r uct ur al Cl ay Ti l e

ASTM C780 ( 2015a) Pr econst r uct i on and Const r uct i on Eval uat i on of Mor t ar s f or Pl ai n and Rei nf or ced Uni t Masonr y

ASTM D2000 ( 2012) St andar d Cl assi f i cat i on Syst em f or Rubber Pr oduct s i n Aut omot i ve Appl i cat i ons

ASTM D2287 ( 2012) Nonr i gi d Vi nyl Chl or i de Pol ymer and Copol ymer Mol di ng and Ext r usi on Compounds

THE MASONRY SOCI ETY ( TMS)

TMS MSJC ( 2011) Masonr y St andar d Joi nt Commi t t ee' s ( MSJC) Book - Bui l di ng Code Requi r ement s and Speci f i cat i on f or Masonr y St r uct ur es, Cont ai ni ng TMS 402/ ACI 530/ ASCE 5, TMS 602/ ACI 530. 1/ ASCE 6, and Compani on Commentaries

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1. 2 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 Cont r act or Qual i t y Cont r ol appr oval 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:

SD- 02 Shop Dr awi ngs

Cut CMU Dr awi ngs; G Rei nf or cement Det ai l Dr awi ngs; G

SD- 03 Pr oduct Dat a

Hot Weat her Pr ocedur es; G Col d Weat her Pr ocedur es; G Cl ay or Shal e Br i ck; G Gl azed St r uct ur al Cl ay Faci ng Ti l e; G Gl azed Br i ck; G Cement ; G Cement i t i ous Mat er i al s; G

SD- 04 Sampl es

Gl azed St r uct ur al Cl ay Faci ng Ti l e; G Gl azed Br i ck; G Di mensi on St one Uni t s; G Admi xt ur es f or Masonr y Mor t ar ; G Anchor s, Ti es, and Bar Posi t i oner s; G Joi nt Rei nf or cement ; G Cl ay Masonr y Expansi on- Joi nt Mat er i al s; G

SD- 05 Desi gn Dat a

Masonr y Compr essi ve St r engt h; G Fi r e- Rat ed Concr et e Masonr y Uni t s Br aci ng Cal cul at i ons; G

SD- 06 Test Repor t s

Fi el d Test i ng of Mor t ar Fi el d Test i ng of Gr out Pr i sm Test s Si ngl e- Wyt he Masonr y Wal l Wat er Penet r at i on Test

SD- 07 Cer t i f i cat es

Speci al Masonr y I nspect or Qual i f i cat i ons Gl azed St r uct ur al Cl ay Faci ng Ti l e Gl azed Br i ck Concr et e Br i ck Pr ecast Concr et e Uni t s Cement i t i ous Mat er i al s Admi xt ur es f or Masonr y Mor t ar Admi xt ur es f or Gr out Anchor s, Ti es, and Bar Posi t i oner s Joi nt Rei nf or cement

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

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Admi xt ur es f or Masonr y Mor t ar Admi xt ur es f or Gr out

1. 3 QUALI TY ASSURANCE

1. 3. 1 Speci al Masonr y I nspect or Qual i f i cat i ons

Ref er t o Sect i on 01 45 35 SPECI AL I NSPECTI ONS f or qual i f i cat i ons and r esponsi bi l i t i es of t he masonr y speci al i nspect or .

1. 4 DELI VERY, STORAGE, AND HANDLI NG

Del i ver , st or e, handl e, and pr ot ect mat er i al t o avoi d chi ppi ng, br eakage, and cont act wi t h soi l or cont ami nat i ng mat er i al . St or e and pr epar e mat er i al s i n al r eady di st ur bed ar eas t o mi ni mi ze pr oj ect s i t e di st ur bance and si ze of pr oj ect s i t e.

1. 4. 1 Masonr y Uni t s

Cover and pr ot ect masonr y uni t s f r om pr eci pi t at i on. Conf or m t o handl i ng and st or age r equi r ement s of TMS MSJC.

a. Pack gl azed br i ck, gl azed st r uct ur al c l ay t i l e, and pr ef aced concr et e masonr y uni t s i n t he manuf act ur er ' s st andar d paper car t ons, t r ays, or shr i nk wr apped pal l et s wi t h a di v i der bet ween each uni t . Do not st ack pal l et s. Do not r emove uni t s f r om car t ons unt i l car t ons ar e pl aced on scaf f ol ds or i n t he l ocat i on wher e uni t s ar e t o be l ai d.

b. Mar k pr ef abr i cat ed l i nt el s on t op si des t o show ei t her t he l i nt el schedul e number or t he number and si ze of t op and bot t om bar s.

1. 4. 2 Rei nf or cement , Anchor s, and Ti es

St or e st eel r ei nf or ci ng bar s, coat ed anchor s, t i es, and j oi nt r ei nf or cement above t he gr ound. Mai nt ai n st eel r ei nf or ci ng bar s and uncoat ed t i es f r ee of l oose mi l l scal e and l oose r ust .

1. 4. 3 Cement i t i ous Mat er i al s, Sand and Aggr egat es

Del i ver cement i t i ous and ot her packaged mat er i al s i n unopened cont ai ner s, pl ai nl y mar ked and l abel ed wi t h manuf act ur er s ' names and br ands. St or e cement i t i ous mat er i al i n dr y, weat her t i ght encl osur es or compl et el y cover . Handl e cement i t i ous mat er i al s i n a manner t hat wi l l pr event t he i ncl usi on of f or ei gn mat er i al s and damage by wat er or dampness. St or e sand and aggr egat es i n a manner t o pr event cont ami nat i on and segr egat i on.

1. 5 PROJECT/ SI TE CONDI TI ONS

Conf or m t o TMS MSJC f or hot and col d weat her masonr y er ect i on.

1. 5. 1 Hot Weat her Pr ocedur es

When ambi ent ai r t emper at ur e exceeds 100 degr ees F, or exceeds 90 degr ees F and t he wi nd vel oci t y i s gr eat er t han 8 mph, compl y wi t h TMS MSJC Ar t i c l e

1. 8 D f or : pr epar at i on pr i or t o conduct i ng masonr y wor k; const r uct i on whi l e masonr y wor k i s i n pr ogr ess; and pr ot ect i on f or newl y compl et ed masonry.

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1. 5. 2 Col d Weat her Pr ocedur es

When ambi ent t emper at ur e i s bel ow 40 degr ees F, compl y wi t h TMS MSJC Ar t i c l e 1. 8 C f or : pr epar at i on pr i or t o conduct i ng masonr y wor k;

const r uct i on whi l e masonr y wor k i s i n pr ogr ess; and pr ot ect i on f or newl y compl et ed masonr y.

PART 2 PRODUCTS

2. 1 SYSTEM DESCRI PTI ON

2. 1. 1 Desi gn - Speci f i ed Compr essi ve St r engt h of Masonr y

The speci f i ed compr essi ve st r engt h of masonr y, f ' m, i sas i ndi cat ed f or each t ype of masonr y.

2. 1. 2 Per f or mance - Ver i f y Masonr y Compr essi ve St r engt h

Ver i f y speci f i ed compr essi ve st r engt h of masonr y usi ng t he " Uni t St r engt h Met hod" of TMS MSJC. Submi t cal cul at i ons and cer t i f i cat i ons of uni t and mor t ar st r engt h.

Ver i f y speci f i ed compr essi ve st r engt h of masonr y usi ng t he " Pr i sm Test Met hod" of TMS MSJC when t he " Uni t St r engt h Met hod" cannot be used.

Submi t t est r esul t s.

2. 2 MANUFACTURED UNI TS

2. 2. 1 Gener al Requi r ement s

Do not change t he sour ce of mat er i al s, whi ch wi l l af f ect t he appear ance of t he f i ni shed wor k, af t er t he wor k has st ar t ed except wi t h Cont r act i ng Of f i cer ' s appr oval . Submi t t est r epor t s f r om an appr oved i ndependent l abor at or y. Cer t i f y t est r epor t s on a pr evi ousl y t est ed mat er i al as t he same mat er i al s as t hat pr oposed f or use i n t hi s pr oj ect . Submi t cer t i f i cat es of compl i ance st at i ng t hat t he mat er i al s meet t he speci f i ed requirements.

2. 3 EQUIPMENT

2. 3. 1 Gr out Pumps

Pumpi ng t hr ough al umi num t ubes i s not per mi t t ed.

2. 4 MATERIALS

2. 4. 1 Mor t ar Mat er i al s

2. 4. 1. 1 Cement i t i ous Mat er i al s

Pr ovi de cement i t i ous mat er i al s t hat conf or m t o t hose per mi t t ed by ASTM C270.

2. 4. 1. 2 Hydr at ed Li me and Al t er nat es

Pr ovi de l i me t hat conf or ms t o one of t he mat er i al s per mi t t ed by ASTM C207 f or use i n combi nat i on wi t h por t l and cement , hydr aul i c cement , and bl ended hydr aul i c cement . Do not use l i me i n combi nat i on wi t h masonr y cement or mor t ar cement .

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2. 4. 1. 3 Admi xt ur es f or Masonr y Mor t ar

I n col d weat her , use a non- chl or i de based accel er at i ng admi xt ur e t hat conf or ms t o ASTM C1384, unl ess Type I I I por t l and cement i s used i n t he mortar.

I n shower s and ki t chens, use mor t ar t hat cont ai ns a wat er - r epel l ent admi xt ur e t hat conf or ms t o ASTM C1384. Pr ovi de a wat er - r epel l ent admi xt ur e, conf or mi ng t o ASTM C1384 and of t he same br and and manuf act ur er as t he bl ock' s i nt egr al wat er - r epel l ent , i n t he mor t ar used t o pl ace concr et e masonr y uni t s t hat have an i nt egr al wat er - r epel l ent admi xt ur e.

2. 4. 1. 4 Aggr egat e and Wat er

Pr ovi de aggr egat e ( sand) and wat er t hat conf or m t o mat er i al s per mi t t ed by

ASTM C270.

2. 4. 2 Gr out and Ready- Mi x Gr out Mat er i al s

2. 4. 2. 1 Cement i t i ous Mat er i al s f or Gr out

Pr ovi de cement i t i ous mat er i al s t hat conf or m t o t hose per mi t t ed by ASTM C476.

2. 4. 2. 2 Admi xt ur es f or Gr out

Wat er - r educi ng admi xt ur es t hat conf or m t o ASTM C494/ C494M Type F or G and vi scosi t y- modi f y i ng admi xt ur es t hat conf or m t o ASTM C494/ C494M Type S ar e per mi t t ed f or use i n gr out . Ot her admi xt ur es r equi r e appr oval by t he Cont r act i ng Of f i cer .

I n col d weat her , a non- chl or i de based accel er at i ng admi xt ur e may be used subj ect t o appr oval by t he Cont r act i ng Of f i cer ; use accel er at i ng admi xt ur e t hat i s non- cor r osi ve and conf or ms t o ASTM C494/ C494M, Type C.

2. 4. 2. 3 Aggr egat e and Wat er

Pr ovi de f i ne and coar se aggr egat es and wat er t hat conf or m t o mat er i al s per mi t t ed by ASTM C476.

2. 5 MORTAR AND GROUT MI XES

2. 5. 1 Mor t ar Mi x

a. Pr ovi de mor t ar Type S unl ess speci f i ed ot her wi se her ei n.

b. Use ASTM C270 Type S cement - l i me mor t ar or mor t ar cement mor t ar f or sei smi c- f or ce- r esi st i ng el ement s i ndi cat ed.

c. Pr ovi de mor t ar t hat conf or ms t o ASTM C270. Use Type S mor t ar f or f oundat i on wal l s, basement wal l s, and i n pi er s.

d. Pr ovi de Type N or S mor t ar f or non- l oad- bear i ng, non- shear - wal l i nt er i or masonr y.

e. For f i el d- bat ched mor t ar , measur e component mat er i al s by vol ume. Use measur i ng boxes f or mat er i al s t hat do not come i n packages, such as sand, f or consi st ent bat chi ng. Mi x cement i t i ous mat er i al s and aggr egat es bet ween 3 and 5 mi nut es i n a mechani cal bat ch mi xer wi t h a suf f i c i ent amount of wat er t o pr oduce a wor kabl e consi st ency. Do not hand mi x mor t ar unl ess appr oved by t he Cont r act i ng Of f i cer . Mai nt ai n

Apr i l 2019 Page 6 SECTI ON 04 20 00 wor kabi l i t y of mor t ar by r emi xi ng or r et emper i ng. Di scar d mor t ar t hat has begun t o st i f f en or i s not used wi t hi n 2- 1/ 2 hour s af t er i ni t i al mixing.

f . For pr ebl ended mor t ar , f ol l ow manuf act ur er ' s mi xi ng i nst r uct i ons.

2. 5. 2 Gr out and Ready Mi x Gr out Mi x

Use gr out t hat conf or ms t o ASTM C476, f i ne. Use convent i onal gr out wi t h a s l ump bet ween 8 and 11 i nches. Use sel f - consol i dat i ng gr out wi t h s l ump f l ow of 24 t o 30 i nches and a v i sual st abi l i t y i ndex ( VSI ) not gr eat er t han 1. Pr ovi de mi ni mum gr out st r engt h of 2000 psi i n 28 days, as t est ed i n accor dance wi t h ASTM C1019. Do not change pr opor t i ons and do not use mat er i al s wi t h di f f er ent physi cal or chemi cal char act er i st i cs i n gr out f or t he wor k unl ess addi t i onal evi dence i s f ur ni shed t hat gr out meet s t he speci f i ed r equi r ement s. Use r eady- mi xed gr out t hat conf or ms t o ASTM C476.

2. 6 ACCESSORIES

2. 6. 1 Gr out Bar r i er s

Gr out bar r i er s f or ver t i cal cor es t hat consi st of f i ne mesh wi r e, f i ber gl ass, or expanded met al .

2. 6. 2 Anchor s, Ti es, and Bar Posi t i oner s

2. 6. 2. 1 General

a. Fabr i cat e anchor s and t i es wi t hout dr i ps or cr i mps. Si ze anchor s and t i es t o pr ovi de a mi ni mum of 5/ 8 i nch mor t ar cover f r om each f ace of masonry.

b. Fabr i cat e st eel wi r e anchor s and t i es shal l f r om wi r e conf or mi ng t o ASTM A1064/ A1064M and hot - di p gal vani ze i n accor dance wi t h

ASTM A153/ A153M.

c. Fabr i cat e j oi nt r ei nf or cement i n conf or mance wi t h ASTM A951/ A951M.

Hot di p gal vani ze j oi nt r ei nf or cement i n ext er i or wal l s and i n i nt er i or wal l s exposed t o moi st envi r onment i n conf or mance wi t h ASTM A153/ A153M. Gal vani ze j oi nt r ei nf or cement i n ot her i nt er i or wal l s i n conf or mance wi t h ASTM A641/ A641M; coor di nat e wi t h par agr aph JOI NT REI NFORCEMENT bel ow.

d. Fabr i cat e sheet met al anchor s and t i es i n conf or mance wi t h ASTM A1008/ A1008M. Hot di p gal vani ze sheet met al anchor s and t i es i n ext er i or wal l s and i n i nt er i or wal l s exposed t o moi st envi r onment i n compl i ance wi t h ASTM A153/ A153M Cl ass B. Gal vani ze sheet met al anchor s and t i es i n ot her i nt er i or wal l s i n compl i ance wi t h ASTM A653/ A653M, Coat i ng Desi gnat i on G60.

e. Submi t t wo anchor s, t i es and bar posi t i oner s of each t ype used, as samples.

2. 6. 2. 2 Wi r e Mesh Anchor s

Pr ovi de wi r e mesh anchor s of 1/ 4 i nch mesh gal vani zed har dwar e cl ot h, conf or mi ng t o ASTM A185/ A185M, wi t h l engt h not l ess t han 12 i nches, at i nt er sect i ons of i nt er i or non- bear i ng masonr y wal l s.

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2. 6. 2. 3 Wal l Ti es f or Mul t i - Wyt he Masonr y Const r uct i on

Pr ovi de r ect angul ar - shaped wal l t i es, f abr i cat ed of hot - di pped gal vani zed W2. 8 di amet er st eel wi r e. Pr ovi de r ect angul ar wal l t i es no l ess t han 4 i nches wi de.

Pr ovi de adj ust abl e t ype wal l t i es, i f appr oved f or use, t hat consi st of t wo essent i al l y U- shaped el ement s f abr i cat ed of mi ni mum W2. 8 di amet er st eel wi r e or pi nt l e t ype t i es t hat ar e i nser t ed t o eyes of hor i zont al j oi nt r ei nf or cement , hot - di p gal vani zed. Pr ovi de adj ust abl e t i es wi t h doubl e pi nt l e l egs and al l ows a maxi mum of f set of 1- 1/ 4 i nch bet ween each el ement of t he t i e and maxi mum di st ance bet ween connect i ng par t s no mor e t han 1/ 16 i nch. For m t he pi nt l e and eye el ement s shal l be f or med so t hat bot h can be i n t he same pl ane. Wal l t i es may al so be of a cont i nuous t ype conf or mi ng t o par agr aph JOI NT REI NFORCEMENT.

2. 6. 2. 4 Dovet ai l Anchor s

Pr ovi de dovet ai l anchor s of 3/ 16 i nch di amet er st eel wi r e, t r i angul ar shaped, and at t ached t o a 12 gauge or heavi er st eel dovet ai l sect i on. Use t hese anchor s t o connect t he ext er i or masonr y wyt he as i t passes over t he f ace of concr et e col umns, beams, or wal l s. Fi l l cel l s i mmedi at el y above and bel ow t hese anchor s unl ess sol i d uni t s ar e used. Fur ni sh dovet ai l s l ot s, whi ch ar e speci f i ed t o be i nst al l ed by ot her s, i n accor dance wi t h Sect i on 03 30 00 CAST- I N- PLACE CONCRETE.

2. 6. 2. 5 Adj ust abl e Anchor s

2. 6. 2. 5. 1 Anchor age t o St r uct ur al St eel

Pr ovi de st ai nl ess st eel adj ust abl e anchor s f or connect i ng masonr y wal l s t o t he st r uct ur al st eel f r ame as det ai l ed on t he dr awi ngs.

2. 6. 2. 5. 2 Anchor age of Veneer t o Li ght Gauge St eel or Concr et e Backi ng

Use one of t he f ol l owi ng t ypes of adj ust abl e anchor s t o connect veneer t o l i ght gauge st eel or concr et e backi ng:

a. sheet met al at l east 7/ 8 i nch wi de, 0. 06 i nch t hi ck, and wi t h cor r ugat i ons havi ng a wavel engt h of 0. 3 t o 0. 5 i nch and an ampl i t ude of

0. 06 t o 0. 10 i nch or bent , not ched or punched t o pr ovi de equi val ent performance;

b. wi r e anchor s of mi ni mum si ze W1. 7 wi t h ends bent t o f or m a mi ni mum 2 i nches ext ensi on and wi t hout dr i ps;

c. or wi r e pi nt l e anchor s used i n conj unct i on wi t h j oi nt r ei nf or cement .

Do not exceed 1/ 16 i nch cl ear ance bet ween connect i ng par t s of t he t i e.

Assembl e adj ust abl e anchor s t o pr event di sengagement . Pr ovi de pi nt l e anchor s wi t h one or mor e pi nt l e l egs of wi r e s i ze W2. 8 and an of f set not exceedi ng 1- 1/ 4 i nch.

2. 6. 2. 6 Veneer Anchor Scr ews

Pr ovi de scr ews f or at t achment of veneer anchor s t o col d- f or med st eel f r ami ng member s of s i ze as r equi r ed by desi gn t o pr ovi de t he needed pul l out l oad capaci t y but not l ess t han No. 12. Pr ovi de l engt h of scr ews such t hat t he scr ews penet r at e t he hol di ng member by not l ess t han 5/ 8 i nch.

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2. 6. 2. 7 Bar Posi t i oner s

Fact or y- f abr i cat e bar posi t i oner s, used t o pr event di spl acement of r ei nf or ci ng bar s dur i ng t he cour se of const r uct i on, f r om 9 gauge st eel wi r e or equi val ent , and hot - di p gal vani zed.

2. 6. 3 Joi nt Rei nf or cement

Fact or y f abr i cat e j oi nt r ei nf or cement i n conf or mance wi t h ASTM A951/ A951M, wel ded const r uct i on. Pr ovi de l adder t ype j oi nt r ei nf or cement , havi ng one l ongi t udi nal wi r e i n t he mor t ar bed of each f ace shel l f or hol l ow uni t s and one wi r e f or sol i d uni t s and wi t h al l wi r es a mi ni mum of 9 gauge.

Si ze j oi nt r ei nf or cement t o pr ovi de a mi ni mum of 5/ 8 i nch cover f r om each f ace. Space cr osswi r es not mor e t han 16 i nches. Pr ovi de j oi nt r ei nf or cement f or st r ai ght r uns i n f l at sect i ons not l ess t han 10 f eet l ong. Pr ovi de j oi nt r ei nf or cement wi t h f act or y f or med cor ner s and i nt er sect i ons. I f appr oved f or use, j oi nt r ei nf or cement may be f ur ni shed wi t h adj ust abl e wal l t i e f eat ur es. Submi t one pi ece of each t ype used, i ncl udi ng cor ner and wal l i nt er sect i on pi eces, showi ng at l east t wo cr oss wires.

2. 6. 4 Rei nf or ci ng St eel Bar s

Rei nf or ci ng st eel bar s and r ods shal l conf or m t o ASTM A615/ A615M or ASTM A996/ A996M, Gr ade 60.

2. 6. 5 Concr et e Masonr y Cont r ol Joi nt Keys

Pr ovi de cont r ol j oi nt keys of a f act or y f abr i cat ed sol i d sect i on of nat ur al or synt het i c r ubber ( or combi nat i on t her eof ) conf or mi ng t o ASTM D2000 M2AA- 805 wi t h a mi ni mum dur omet er har dness of 80 or pol yvi nyl chl or i de conf or mi ng t o ASTM D2287 Type PVC 654- 4 wi t h a mi ni mum dur omet er har dness of 85. For m t he cont r ol j oi nt key wi t h a sol i d shear sect i on not l ess t han 5/ 8 i nch t hi ck and 3/ 8 i nch t hi ck f l anges, wi t h a t ol er ance of pl us or mi nus 1/ 16 i nch, t o f i t neat l y, but wi t hout f or c i ng, i n masonr y uni t j amb sash gr ooves.

2. 6. 6 Cl ay Masonr y Expansi on- Joi nt Mat er i al s

Pr ovi de backer r od and seal ant , adequat e t o accommodat e j oi nt compr essi on and ext ensi on equal t o 50 per cent of t he wi dt h of t he j oi nt . Pr ovi de t he backer r od of compr essi bl e r od st ock of c l osed cel l pol yet hyl ene f oam, pol yur et hane f oam, but yl r ubber f oam, or ot her f l exi bl e, nonabsor pt i ve mat er i al as r ecommended by t he seal ant manuf act ur er . Pr ovi de seal ant i n conf or mance wi t h Sect i on 07 92 00 JOI NT SEALANTS

Submi t one pi ece of each t ype of mat er i al used.

2. 6. 7 Thr ough Wal l Fl ashi ng and Weeps

2. 6. 7. 1 General

Pr ovi de coat ed copper , copper or st ai nl ess st eel sheet , sel f - adhesi ve r ubber i zed sheet , or r ei nf or ced membr ane sheet f l ashi ng except t hat f l ashi ng i ndi cat ed t o t er mi nat e i n r egl et s shal l be met al or coat ed- met al flashing.

Apr i l 2019 Page 9 SECTI ON 04 20 00

2. 6. 7. 2 Coat ed- Copper Fl ashi ng

Pr ovi de 7 ounce, el ect r ol yt i c copper sheet , uni f or ml y coat ed on bot h s i des wi t h aci dpr oof , al kal i pr oof , asphal t i mpr egnat ed kr af t paper or pol yet hyl ene sheet s.

2. 6. 7. 3 Copper or St ai nl ess St eel Fl ashi ng

Pr ovi de copper sheet , compl yi ng wi t h ASTM B370, mi ni mum 16 ounce wei ght ;

or st ai nl ess st eel , ASTM A167, Type 304 or 316, 0. 015 i nch t hi ck, No. 2D f i ni sh. Wher e i ndi cat ed, pr ovi de wi t h f act or y- f abr i cat ed def or mat i ons t hat mechani cal l y bond f l ashi ng agai nst hor i zont al movement i n al l di r ect i ons, wher e def or mat i ons consi st of di mpl es, di agonal cor r ugat i ons, or a combi nat i on of di mpl es and t r ansver se cor r ugat i ons.

2. 6. 7. 4 Rei nf or ced Membr ane Fl ashi ng

Pr ovi de pol yest er f i l m cor e wi t h a r ei nf or ci ng f i ber gl ass scr i m bonded t o one si de. Pr ovi de membr ane t hat i s i mper vi ous t o moi st ur e, f l exi bl e, i s not af f ect ed by caust i c al kal i s, and af t er bei ng exposed f or not l ess t han 1/ 2 hour t o a t emper at ur e of 32 degr ees F, shows no cr acki ng when, at t hat t emper at ur e, i t i s bent 180 degr ees over a 1/ 16 i nch di amet er mandr el and t hen bent at t he same poi nt over t he same si ze mandr el i n t he opposi t e di r ect i on 360 degr ees.

2. 6. 7. 5 Rubber i zed Fl ashi ng

Pr ovi de sel f - adhesi ve r ubber i zed asphal t sheet f l ashi ng consi st i ng of 32- mi l t hi ck pl i abl e and hi ghl y adhesi ve r ubber i zed asphal t compound bonded compl et el y and i nt egr al l y t o 8- mi l t hi ck, hi gh densi t y, cr oss- l ami nat ed pol yet hyl ene f i l m t o pr oduce an over al l t hi ckness of 40 mi l s. Pr ovi de r ubber i zed, asphal t - based mast i c and sur f ace condi t i oner t hat ar e each appr oved by f l ashi ng manuf act ur er f or use wi t h f l ashi ng material.

2. 6. 7. 6 Weep Vent i l at or s

Pr ovi de weep vent i l at or s t hat ar e pr ef abr i cat ed f r om st ai nl ess st eel or pl ast i c. Pr ovi de i nser t s wi t h gr i l l or l ouver - t ype openi ngs desi gned t o al l ow t he passage of moi st ur e f r om cavi t i es and t o pr event t he ent r ance of i nsect s, and wi t h a r ect angul ar c l osur e st r i p t o pr event mor t ar dr oppi ngs f r om cl oggi ng t he openi ng. Pr ovi de vent i l at or s wi t h compr essi bl e f l anges t o f i t i n a st andar d 3/ 8 i nch wi de mor t ar j oi nt and wi t h hei ght equal t o t he nomi nal hei ght of t he uni t . .

2. 6. 7. 7 Met al Dr i p Edge

Pr ovi de st ai nl ess st eel dr i p edge, 15- mi l t hi ck, hemmed edges, wi t h down- t ur ned dr i p at t he out si de edge and upt ur ned dam at t he i nsi de edge f or use wi t h membr ane f l ashi ngs.

2. 6. 8 RI GI D BOARD- TYPE I NSULATI ON

Pr ovi de r i gi d boar d- t ype i nsul at i on as speci f i ed i n Sect i on 07 21 13 BOARD

AND BLOCK I NSULATI ON.

Apr i l 2019 Page 10 SECTI ON 04 20 00

PART 3 EXECUTI ON

3. 1 EXAMINATION

Pr i or t o st ar t of wor k, ver i f y t he appl i cabl e condi t i ons as set f or t h i n TMS MSJC, i nspect i on.

3. 2 PREPARATION

3. 2. 1 Stains

Pr ot ect exposed sur f aces f r om mor t ar and ot her st ai ns. When mor t ar j oi nt s ar e t ool ed, r emove mor t ar f r om exposed sur f aces wi t h f i ber br ushes and wooden paddl es. Pr ot ect base of wal l s f r om spl ash st ai ns by cover i ng adj acent gr ound wi t h sand, sawdust , or pol yet hyl ene.

3. 2. 2 Loads

Do not appl y uni f or m l oads f or at l east 12 hour s or concent r at ed l oads f or at l east 72 hour s af t er masonr y i s const r uct ed. Pr ovi de t empor ar y br aci ng as r equi r ed.

3. 2. 3 Concr et e Sur f aces

Wher e masonr y i s t o be pl aced, c l ean concr et e of l ai t ance, dust , di r t , oi l , or gani c mat t er , or ot her f or ei gn mat er i al s and sl i ght l y r oughen t o pr ovi de a sur f ace t ext ur e wi t h a dept h of at l east 1/ 8 i nch. Sandbl ast , i f necessar y, t o r emove l ai t ance f r om por es and t o expose t he aggr egat e.

3. 2. 4 Shel f Angl es

Adj ust shel f angl es as r equi r ed t o keep t he masonr y l evel and at t he pr oper el evat i on.

3. 2. 5 Bracing

Pr ovi de br aci ng and scaf f ol di ng necessar y f or masonr y wor k. Desi gn br aci ng t o r esi st wi nd pr essur e as r equi r ed by OSHA and l ocal codes and submi t br aci ng cal cul at i ons, seal ed by a r egi st er ed pr of essi onal engi neer . Do not r emove br aci ng i n l ess t han 10 days.

3. 3 ERECTION

3. 3. 1 General

a. Coor di nat e masonr y wor k wi t h t he wor k of ot her t r ades t o accommodat e bui l t - i n i t ems and t o avoi d cut t i ng and pat chi ng. Lay masonr y uni t s i n r unni ng bond pat t er n. Lay f aci ng cour ses l evel wi t h back- up cour ses, unl ess t he use of adj ust abl e t i es has been appr oved i n whi ch case t he t ol er ances i s pl us or mi nus 1/ 2 i nch. Adj ust each uni t t o i t s f i nal posi t i on whi l e mor t ar i s st i l l sof t and has pl ast i c consistency.

b. Remove and cl ean uni t s t hat have been di st ur bed af t er t he mor t ar has st i f f ened, and r el ay wi t h f r esh mor t ar . Keep ai r spaces, cavi t i es, chases, expansi on j oi nt s, and spaces t o be gr out ed f r ee f r om mor t ar and ot her debr i s. Sel ect uni t s t o be used i n exposed masonr y sur f aces f r om t hose havi ng t he l east amount of chi pped edges or ot her i mper f ect i ons det r act i ng f r om t he appear ance of t he f i ni shed wor k.

Apr i l 2019 Page 11 SECTI ON 04 20 00

c. When necessar y t o t empor ar i l y di scont i nue t he wor k, st ep ( r ack) back t he masonr y f or j oi ni ng when wor k r esumes. Toot hi ng may be used onl y when speci f i cal l y appr oved by t he Cont r act i ng Of f i cer . Bef or e r esumi ng wor k, r emove l oose mor t ar and t hor oughl y c l ean t he exposed j oi nt . Cover t he t op of wal l s subj ect ed t o r ai n or snow wi t h nonst ai ni ng wat er pr oof cover i ng or membr ane when wor k i s not i n pr ocess. Ext end t he cover i ng a mi ni mum of 2 f eet down on each si de of t he wal l and hol d secur el y i n pl ace.

d. Ensur e t hat uni t s bei ng l ai d and sur f aces t o r ecei ve uni t s ar e f r ee of wat er f i l m and f r ost . Lay sol i d uni t s i n a nonf ur r owed f ul l bed of mor t ar . Bevel mor t ar f or veneer wyt hes and sl ope down t owar d t he cavi t y s i de. Shove uni t s i nt o pl ace so t hat t he ver t i cal j oi nt s ar e t i ght . Compl et el y f i l l ver t i cal j oi nt s bet ween sol i d uni t s wi t h mor t ar , except wher e i ndi cat ed at cont r ol , expansi on, and i sol at i on j oi nt s. Pl ace hol l ow uni t s so t hat mor t ar ext ends t o t he dept h of t he f ace shel l at heads and beds, unl ess ot her wi se i ndi cat ed. Mor t ar wi l l be per mi t t ed t o pr ot r ude up t o 1/ 2 i nch i nt o t he space or cel l s t o be gr out ed. Pr ovi de means t o pr event mor t ar f r om dr oppi ng i nt o t he space bel ow or c l ean gr out spaces pr i or t o gr out i ng.

d. I n mul t i - wyt he const r uct i on wi t h col l ar j oi nt s no mor e t han 3/ 4 i nch wi de, br i ng up t he i nner wyt he not mor e t han 16 i nches ahead of t he out er wyt he. Fi l l col l ar j oi nt s wi t h mor t ar dur i ng t he l ayi ng of t he f aci ng wyt he, and f i l l i ng shal l not l ag t he l ayi ng of t he f aci ng wyt he by back- but t er i ng each uni t as i t i s l ai d.

3. 3. 1. 1 Jointing

Tool mor t ar j oi nt s when t he mor t ar i s t humbpr i nt har d. Tool hor i zont al j oi nt s af t er t ool i ng ver t i cal j oi nt s. Br ush mor t ar j oi nt s t o r emove l oose and excess mor t ar .

3. 3. 1. 1. 1 Tool ed Joi nt s

Tool mor t ar j oi nt s i n exposed ext er i or and i nt er i or masonr y sur f aces concave, usi ng a j oi nt er t hat i s s l i ght l y l ar ger t han t he j oi nt wi dt h so t hat compl et e cont act i s made al ong t he edges of t he uni t . Per f or m t ool i ng so t hat t he mor t ar i s compr essed and t he j oi nt sur f ace i s seal ed.

Use a j oi nt er of suf f i c i ent l engt h t o obt ai n a st r ai ght and t r ue mor t ar joint.

3. 3. 1. 1. 2 Fl ush Joi nt s

Fl ush cut mor t ar j oi nt s i n conceal ed masonr y sur f aces and j oi nt s at el ect r i cal out l et boxes i n wet ar eas. Fi ni sh f l ush cut j oi nt s by cut t i ng of f t he mor t ar f l ush wi t h t he f ace of t he wal l . Poi nt j oi nt s i n unpar ged masonr y wal l s bel ow gr ade t i ght . For ar chi t ect ur al uni t s, such as f l ut ed uni t s, compl et el y f i l l bot h t he head and bed j oi nt s and f l ush cut .

3. 3. 1. 1. 3 Door and Wi ndow Fr ame Joi nt s

On t he exposed i nt er i or s i de of ext er i or f r ames, j oi nt s bet ween f r ames and abut t i ng masonr y wal l s shal l be r aked t o a dept h of 3/ 8 i nch. On t he ext er i or s i de of ext er i or f r ames, j oi nt s bet ween f r ames and abut t i ng masonr y wal l s shal l be r aked t o a dept h of 3/ 8 i nch.

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3. 3. 1. 1. 4 Joi nt Wi dt hs

a. Const r uct br i ck masonr y wi t h mor t ar j oi nt wi dt hs equal t o t he di f f er ence bet ween t he speci f i ed and nomi nal di mensi ons of t he uni t , wi t hi n t ol er ances per mi t t ed by TMS MSJC.

b. Pr ovi de 3/ 8 i nch wi de mor t ar j oi nt s i n concr et e masonr y, except f or pr ef aced concr et e masonr y uni t s.

c. Pr ovi de 3/ 8 i nch wi de mor t ar j oi nt s on unf aced si de of pr ef aced concr et e masonr y uni t s and not l ess t han 3/ 16 i nch nor mor e t han 1/ 4 i nch wi de on pr ef aced si de.

d. Mai nt ai n mor t ar j oi nt wi dt hs wi t hi n t ol er ances per mi t t ed by TMS MSJC

3. 3. 1. 2 Cut t i ng and Fi t t i ng

Use f ul l uni t s of t he pr oper s i ze wher ever possi bl e, i n l i eu of cut uni t s. Locat e cut uni t s wher e t hey woul d have t he l east i mpact on t he ar chi t ect ur al aest het i c goal s of t he f aci l i t y . Per f or m cut t i ng and f i t t i ng, i ncl udi ng t hat r equi r ed t o accommodat e t he wor k of ot her s, by masonr y mechani cs usi ng power masonr y saws. Concr et e masonr y uni t s may be wet or dr y cut . Bef or e bei ng pl aced i n t he wor k, dr y wet - cut uni t s t o t he same sur f ace- dr y appear ance as uncut uni t s bei ng l ai d i n t he wal l .

Pr ovi de cut edges t hat ar e c l ean, t r ue and shar p.

a. Car ef ul l y make openi ngs i n t he masonr y so t hat wal l pl at es, cover pl at es or escut cheons r equi r ed by t he i nst al l at i on wi l l compl et el y conceal t he openi ngs and wi l l have bot t oms par al l el wi t h t he masonr y bed j oi nt s. Pr ovi de r ei nf or ced masonr y l i nt el s above openi ngs over 12 i nches wi de f or pi pes, duct s, cabl e t r ays, and ot her wal l penet r at i ons, unl ess st eel s l eeves ar e used.

b. Do not r educe masonr y uni t s i n s i ze by mor e t han one- t hi r d i n hei ght and one- hal f i n l engt h. Do not l ocat e cut pr oduct s at ends of wal l s, cor ner s, and ot her openi ngs.

3. 3. 1. 3 Unf i ni shed Wor k

Rack back unf i ni shed wor k f or j oi ni ng wi t h new wor k. Toot hi ng may be r esor t ed t o onl y when speci f i cal l y appr oved by t he Cont r act i ng Of f i cer .

Remove l oose mor t ar and t hor oughl y c l ean t he exposed j oi nt s bef or e l ayi ng new wor k.

3. 3. 1. 4 Cl ay Masonr y Expansi on Joi nt s

Pr ovi de cl ay masonr y expansi on j oi nt s as i ndi cat ed. Const r uct by l eavi ng a gap. Ensur e t hat no mor t ar or ot her noncompr essi bl e mat er i al s ar e wi t hi n t he j oi nt . I nst al l backer r od and seal ant i n accor dance wi t h Sect i on

07 92 00 JOI NT SEALANTS.

3. 3. 1. 5 Cont r ol Joi nt s

Pr ovi de cont r ol j oi nt s i n concr et e masonr y as i ndi cat ed. Const r uct by usi ng sash j amb uni t s wi t h cont r ol j oi nt key i n accor dance wi t h t he det ai l s shown on t he Dr awi ngs. For m a cont i nuous ver t i cal j oi nt at cont r ol j oi nt l ocat i ons, i ncl udi ng t hr ough bond beams, by ut i l i z i ng hal f bl ocks i n al t er nat i ng cour ses on each si de of t he j oi nt . I nt er r upt t he hor i zont al r ei nf or cement and gr out i n bond beams at t he cont r ol j oi nt

Apr i l 2019 Page 13 SECTI ON 04 20 00 except i n bond beams at t he f l oor and r oof di aphr agms.

Wher e mor t ar was pl aced i n t he j oi nt , r ake bot h f aces of t he cont r ol j oi nt s t o a dept h of 3/ 4 i nch. I nst al l backer r od and seal ant on bot h f aces i n accor dance wi t h Sect i on 07 92 00 JOI NT SEALANTS.

3. 3. 1. 6 Decor at i ve Ar chi t ect ur al Uni t s

Pl ace decor at i ve masonr y uni t s wi t h t he pat t er ned f ace shel l pr oper l y al i gned i n t he compl et ed wal l .

3. 3. 2 Anchor ed Veneer Const r uct i on

a. Const r uct ext er i or masonr y wyt hes t o t he t hi ckness i ndi cat ed on t he dr awi ngs. Pr ovi de a mi ni mum __1. 75___ i nch ai r space behi nd t he masonr y veneer . Pr ovi de means t o ensur e t hat t he cavi t y space and f l ashi ngs ar e kept c l ean of mor t ar dr oppi ngs and ot her l oose debr i s.

Mai nt ai n chases and r aked- out j oi nt s f r ee f r om mor t ar and debr i s.

b. Pl ace masonr y i n r unni ng bond pat t er n.

c. For veneer over st ud f r ami ng, do not i nst al l veneer unt i l t he ext er i or sheat hi ng, moi st ur e bar r i er , veneer anchor s and f l ashi ng have been i nst al l ed on t he backi ng. Take ext r eme car e t o avoi d damage t o t he moi st ur e bar r i er and f l ashi ng dur i ng const r uct i on of t he masonr y veneer . Repai r or r epl ace por t i ons of t he moi st ur e bar r i er and f l ashi ng t hat ar e damaged pr i or t o compl et i on of t he veneer . Pr ovi de a cont i nuous cavi t y as i ndi cat ed.

d. For veneer wi t h a masonr y backup wyt he, l ay up bot h t he i nner and t he out er wyt hes t oget her except when adj ust abl e j oi nt r ei nf or cement assembl i es ar e appr oved f or use. When bot h wyt hes ar e not br ought up t oget her , i nst al l t hr ough- wal l f l ashi ngs wi t h t he ext er i or wyt he, secur i ng t he t op edge of t he f l ashi ng wi t h a t er mi nat i on bar and seal ant , or pr ot ect f l ashi ngs t hat ar e i nst al l ed wi t h t he i nt er i or wyt he f r om damage unt i l t hey ar e f ul l y encl osed i n t he wal l .

e. Pr ovi de anchor s ( t i es) t o connect t he veneer t o i t s backi ng i n suf f i c i ent quant i t y t o compl y wi t h t he f ol l owi ng r equi r ement s: maxi mum wal l ar ea per anchor { t i e) of 1. 77 SF, and maxi mum ver t i cal spaci ng of 16 i nches, and maxi mum hor i zont al spaci ng of 16 i nches. Pr ovi de addi t i onal anchor s ar ound openi ngs l ar ger t han 16 i nch i n ei t her di r ect i on. Space anchor s ar ound per i met er of openi ng at a maxi mum of 24 i nches on cent er . Pl ace anchor s wi t hi n 12 i nches of openi ngs.

Anchor s wi t h dr i ps ar e not per mi t t ed.

f . Wi t h sol i d uni t s, embed anchor s i n mor t ar j oi nt and ext end i nt o t he veneer a mi ni mum of 1- 1/ 2 i nch, wi t h at l east 5/ 8 i nch mor t ar cover t o t he out si de f ace.

g. Wi t h hol l ow uni t s, embed anchor s i n mor t ar or gr out and ext end i nt o t he veneer a mi ni mum of 1- 1/ 2 i nch, wi t h at l east 5/ 8 i nch mor t ar or gr out cover t o out si de f ace.

3. 3. 3 Composi t e Wal l s

Ti e masonr y wyt hes t oget her wi t h j oi nt r ei nf or cement or wi t h uni t wal l t i es. Embed wal l t i es at l east 1- 1/ 2 i nch i nt o mor t ar of sol i d uni t s and at l east 1/ 2 i nch i nt o t he mor t ar of t he out er f ace shel l of hol l ow

Apr i l 2019 Page 14 SECTI ON 04 20 00 uni t s. Pr ovi de at l east one t i e ever y 2. 67 squar e f eet f or wi r e s i ze W1. 7 and at l east one t i e ever y 4. 50 squar e f eet f or wi r e s i ze W2. 8. Space t i es at a maxi mum of 36 i nches hor i zont al l y and 24 i nches ver t i cal l y. Do not cr oss expansi on j oi nt s or cont r ol j oi nt s wi t h t i es. Fi l l col l ar j oi nt s bet ween masonr y f aci ng and masonr y backup sol i dl y wi t h gr out .

3. 3. 4 Rei nf or ced, Si ngl e Wyt he Concr et e Masonr y Uni t s Wal l s

3. 3. 4. 1 Concr et e Masonr y Uni t Pl acement

a. Ful l y bed uni t s used t o f or m pi er s, pi l ast er s, col umns, st ar t i ng cour ses on f oot i ngs, sol i d f oundat i on wal l s, l i nt el s, and beams, and wher e cel l s ar e t o be f i l l ed wi t h gr out i n mor t ar under bot h f ace shel l s and webs. Pr ovi de mor t ar beds under bot h f ace shel l s f or ot her uni t s. Mor t ar head j oi nt s f or a di st ance i n f r om t he f ace of t he uni t not l ess t han t he t hi ckness of t he f ace shel l .

b. Sol i dl y gr out f oundat i on wal l s bel ow gr ade.

c. St i f f en doubl e wal l s at wal l - mount ed pl umbi ng f i xt ur es by use of st r ap anchor s, t wo above each f i xt ur e and t wo bel ow each f i xt ur e, l ocat ed t o avoi d pi pe r uns, and ext endi ng f r om cent er t o cent er of each wal l wi t hi n t he doubl e wal l . Adequat el y r ei nf or ce wal l s and par t i t i ons f or suppor t of wal l - hung pl umbi ng f i xt ur es when chai r car r i er s ar e not specified.

d. Submi t dr awi ngs showi ng el evat i ons of wal l s exposed t o v i ew and i ndi cat i ng t he l ocat i on of al l cut CMU pr oduct s.

3. 3. 4. 2 Pr epar at i on f or Rei nf or cement

Lay uni t s i n such a manner as t o pr eser ve t he unobst r uct ed ver t i cal cont i nui t y of cor es t o be gr out ed. Remove mor t ar pr ot r usi ons ext endi ng 1/ 2 i nch or mor e i nt o cel l s bef or e pl aci ng gr out . Posi t i on r ei nf or ci ng bar s accur at el y as i ndi cat ed bef or e pl aci ng gr out . Wher e ver t i cal r ei nf or cement occur s, f i l l cor es sol i d wi t h gr out i n accor dance wi t h par agr aph PLACI NG GROUT i n t hi s Sect i on.

3. 3. 5 Cavi t y Wal l s ( Mul t i - Wyt he Noncomposi t e Wal l s

Pr ovi de a cont i nuous cavi t y as i ndi cat ed. Bevel mor t ar beds away f r om cavi t y t o pr event pr oj ect i on i nt o cavi t y when br i cks ar e shoved i n pl ace.

Keep cavi t i es c l ear and cl ean of mor t ar dr oppi ngs.

Secur el y t i e t he t wo wyt hes t oget her wi t h hor i zont al j oi nt r ei nf or cement , or pr ovi de t i es t o connect t he masonr y wyt hes i n suf f i c i ent quant i t y t o compl y wi t h t he f ol l owi ng r equi r ement s: maxi mum wal l ar ea per t i e of 2. 66 SF, and maxi mum ver t i cal spaci ng of 16 i nches, and maxi mum hor i zont al spaci ng of 24 i nches. Pr ovi de addi t i onal t i es ar ound openi ngs l ar ger t han 16 i nches i n ei t her di r ect i on. Space t i es ar ound per i met er of openi ng at a maxi mum of 3 f eet on cent er . Pl ace t i es wi t hi n 12 i nches of openi ngs.

Ti es wi t h dr i ps ar e not per mi t t ed.

3. 3. 6 ANCHORAGE

3. 3. 6. 1 Anchor age t o Concr et e

Anchor age of masonr y t o t he f ace of concr et e col umns, beams, or wal l s shal l be wi t h dovet ai l anchor s spaced not over 16 i nches on cent er s

Apr i l 2019 Page 15 SECTI ON 04 20 00 ver t i cal l y and 24 i nches on cent er hor i zont al l y.

3. 3. 6. 2 Anchor age t o St r uct ur al St eel

Masonr y shal l be anchor ed t o ver t i cal st r uct ur al st eel f r ami ng wi t h adj ust abl e st eel wi r e anchor s spaced not over 16 i nches on cent er s ver t i cal l y, and i f appl i cabl e, not over 24 i nches on cent er s hor i zont al l y.

3. 3. 6. 3 Anchor age at I nt er sect i ng Wal l s

Pr ovi de wi r e mesh anchor s at maxi mum 16 i nches spaci ng at i nt er sect i ons of i nt er i or non- bear i ng masonr y wal l s.

Anchor st r uct ur al masonr y wal l s wi t h st r ap anchor s of mi ni mum si ze 1/ 4 i nch x 1- 1/ 2 i nch x 28 i nches i ncl udi ng 2 i nch) 90 degr ee bends at each end t o f or m U or Z shape at maxi mum spaci ng 48 i nches, gr out ed i nt o t he wal l , unl ess t he dr awi ngs i ndi cat e a movement j oi nt at t he i nt er sect i on.

3. 3. 7 Lintels

3. 3. 7. 1 Masonr y Li nt el s

Const r uct masonr y l i nt el s wi t h l i nt el uni t s f i l l ed sol i d wi t h gr out i n al l cour ses and r ei nf or ced wi t h a mi ni mum of t wo No. 4 bar s i n t he bot t om cour se unl ess ot her wi se i ndi cat ed. Ext end l i nt el r ei nf or cement beyond each si de of masonr y openi ng 40 bar di amet er s or 24 i nches, whi chever i s gr eat er . Suppor t r ei nf or ci ng bar s i n pl ace pr i or t o gr out i ng and l ocat e 1/ 2 i nch above t he bot t om i nsi de sur f ace of t he l i nt el uni t .

3. 3. 7. 2 Pr ecast Concr et e and St eel Li nt el s

Pr ovi de pr ecast concr et e and st eel l i nt el s as shown on t he Dr awi ngs. Set l i nt el s i n a f ul l bed of mor t ar wi t h f aces pl umb and t r ue. Pr ovi de st eel and pr ecast l i nt el s wi t h a mi ni mum bear i ng l engt h of 8 i nches unl ess ot her wi se i ndi cat ed. I n par t i al l y gr out ed masonr y, pr ovi de f ul l y gr out ed uni t s under t he f ul l l i nt el bear i ng l engt h, unl ess ot her wi se i ndi cat ed.

3. 3. 8 Si l l s and Copi ngs

Set s i l l s and copi ngs i n a f ul l bed of mor t ar wi t h f aces pl umb and t r ue.

Sl ope si l l s and copi ngs t o dr ai n wat er . Mechani cal l y anchor copi ngs and si l l s l onger t han 4 f eet as i ndi cat ed.

3. 4 INSTALLATION

3. 4. 1 Bar Rei nf or cement I nst al l at i on

3. 4. 1. 1 Preparation

Submi t det ai l dr awi ngs showi ng bar spl i ce l ocat i ons. I dent i f y bent bar s on a bendi ng di agr am and r ef er ence and l ocat e such bar s on t he dr awi ngs.

Show wal l di mensi ons, bar c l ear ances, and wal l openi ngs. Ut i l i ze bendi ng det ai l s t hat conf or m t o t he r equi r ement s of ACI SP- 66. No appr oval wi l l be gi ven t o t he shop dr awi ngs unt i l t he Cont r act or cer t i f i es t hat al l openi ngs, i ncl udi ng t hose f or mechani cal and el ect r i cal ser vi ce, ar e shown. I f , dur i ng const r uct i on, addi t i onal masonr y openi ngs ar e r equi r ed, r esubmi t t he appr oved shop dr awi ngs wi t h t he addi t i onal openi ngs shown al ong wi t h t he pr oposed changes. Cl ear l y hi ghl i ght l ocat i on of t hese addi t i onal openi ngs. Pr ovi de wal l el evat i on dr awi ngs wi t h mi ni mum scal e of

Apr i l 2019 Page 16 SECTI ON 04 20 00

1/ 4 i nch per f oot . Submi t dr awi ngs i ncl udi ng pl ans, el evat i ons, and det ai l s of wal l r ei nf or cement ; det ai l s of r ei nf or ci ng bar s at cor ner s and wal l i nt er sect i ons; of f set s; t ops, bot t oms, and ends of wal l s; cont r ol and expansi on j oi nt s; l i nt el s; and wal l openi ngs.

Cl ean r ei nf or cement of l oose, f l aky r ust , scal e, gr ease, mor t ar , gr out , and ot her coat i ngs t hat mi ght dest r oy or r educe i t s bond pr i or t o pl aci ng gr out . Do not use bar s wi t h k i nks or bends not shown on t he appr oved shop dr awi ngs. Pl ace r ei nf or cement pr i or t o gr out i ng. Unl ess ot her wi se i ndi cat ed, ext end ver t i cal wal l r ei nf or cement t o wi t hi n 2 i nches of t ops of wal l s.

3. 4. 1. 2 Posi t i oni ng Bar s

a. Accur at el y pl ace ver t i cal bar s wi t hi n t he cel l s at t he posi t i ons i ndi cat ed on t he dr awi ngs. A mi ni mum cl ear ance of 1/ 2 i nch shal l be mai nt ai ned bet ween t he bar s and masonr y uni t s. Pr ovi de mi ni mum cl ear ance bet ween par al l el bar s of 1/ 2 i nch bet ween t he bar s and masonr y uni t s f or coar se gr out and a mi ni mum cl ear ance of 1/ 4 i nch bet ween t he bar s and masonr y uni t s f or f i ne gr out . Pr ovi de mi ni mum cl ear ance bet ween par al l el bar s of 1 i nch or one di amet er of t he r ei nf or cement , whi chever i s gr eat er . Ver t i cal r ei nf or cement may be hel d i n pl ace usi ng bar posi t i oner s l ocat ed near t he ends of each bar and at i nt er medi at e i nt er val s of not mor e t han 192 di amet er s of t he r ei nf or cement or by ot her means t o pr event di spl acement beyond per mi t t ed t ol er ances. As masonr y wor k pr ogr esses, secur e ver t i cal r ei nf or cement t o pr event di spl acement beyond al l owabl e t ol er ances.

b. Wi r e col umn and pi l ast er l at er al t i es i n posi t i on ar ound t he ver t i cal r ei nf or ci ng bar s. Pl ace l at er al t i es i n cont act wi t h t he ver t i cal r ei nf or cement and do not pl ace i n hor i zont al mor t ar bed j oi nt s.

c. Posi t i on hor i zont al r ei nf or ci ng bar s as i ndi cat ed. St agger spl i ces i n adj acent hor i zont al bar s, unl ess ot her wi se i ndi cat ed.

d. For m spl i ces by l appi ng bar s as i ndi cat ed. Do not cut , bend or el i mi nat e r ei nf or ci ng bar s. Foundat i on dowel bar s may be f i el d- bent when per mi t t ed by TMS MSJC.

3. 4. 1. 3 Spl i ces of Bar Rei nf or cement

Lap spl i ce r ei nf or ci ng bar s as i ndi cat ed. When used, pr ovi de wel ded or mechani cal connect i ons t hat devel op at l east 125 per cent of t he speci f i ed y i el d st r engt h of t he r ei nf or cement .

3. 4. 2 Pl aci ng Gr out

3. 4. 2. 1 General

Fi l l cel l s cont ai ni ng r ei nf or ci ng bar s wi t h gr out . Sol i dl y gr out hol l ow masonr y uni t s i n wal l s or par t i t i ons suppor t i ng pl umbi ng, heat i ng, or ot her mechani cal f i x t ur es, voi ds at door and wi ndow j ambs, and ot her i ndi cat ed spaces. Sol i dl y gr out cel l s under l i nt el bear i ngs on each si de of openi ngs f or f ul l hei ght of openi ngs. Sol i dl y gr out wal l s bel ow gr ade, l i nt el s, and bond beams. Uni t s ot her t han open end uni t s may r equi r e gr out i ng each cour se t o pr ecl ude voi ds i n t he uni t s.

Di scar d s i t e- mi xed gr out t hat i s not pl aced wi t hi n 1- 1/ 2 hour s af t er wat er i s f i r st added t o t he bat ch or when t he speci f i ed s l ump i s not met wi t hout

Apr i l 2019 Page 17 SECTI ON 04 20 00 addi ng wat er af t er i ni t i al mi xi ng. Di scar d r eady- mi xed gr out t hat does not meet t he speci f i ed s l ump wi t hout addi ng wat er ot her t han wat er t hat was added at t he t i me of i ni t i al di schar ge. Al l ow suf f i c i ent t i me bet ween gr out l i f t s t o pr ecl ude di spl acement or cr acki ng of f ace shel l s of masonr y uni t s. Pr ovi de a gr out shear key bet ween l i f t s when gr out i ng i s del ayed and t he l ower l i f t l oses pl ast i c i t y. I f bl owout s, f l owout s, mi sal i gnment , or cr acki ng of f ace shel l s shoul d occur dur i ng const r uct i on, t ear down t he wal l and r ebui l d.

3. 4. 2. 2 Ver t i cal Gr out Bar r i er s f or Mul t i - Wyt he Composi t e Wal l s

I n mul t i - wyt he composi t e wal l s, pr ovi de gr out bar r i er s i n t he col l ar j oi n not mor e t han 30 f eet apar t , or as r equi r ed, t o l i mi t t he hor i zont al f l ow of gr out f or each pour .

3. 4. 2. 3 Hor i zont al Gr out Bar r i er s

Embed hor i zont al gr out bar r i er s i n mor t ar bel ow cel l s of hol l ow uni t s r ecei v i ng gr out .

3. 4. 2. 4 Gr out Hol es and Cl eanout s

3. 4. 2. 4. 1 Gr out Hol es

Pr ovi de gr out i ng hol es i n s l abs, spandr el beams, and ot her i n- pl ace over head const r uct i on. Locat e hol es over ver t i cal r ei nf or ci ng bar s or as r equi r ed t o f aci l i t at e gr out f i l l i n bond beams. Pr ovi de addi t i onal openi ngs spaced not mor e t han 16 i nches on cent er s wher e gr out i ng of hol l ow uni t masonr y i s i ndi cat ed. Fom such openi ngs not l ess t han 4 i nches i n di amet er or 3 by 4 i nches i n hor i zont al di mensi ons. Upon compl et i on of gr out i ng oper at i ons, pl ug and f i ni sh gr out i ng hol es t o mat ch sur r oundi ng sur f aces.

3. 4. 2. 4. 2 Cl eanout s f or Hol l ow Uni t Masonr y Const r uct i on

For hol l ow masonr y uni t s. pr ovi de cl eanout hol es at t he bot t om of ever y gr out pour i n cor es cont ai ni ng ver t i cal r ei nf or cement when t he hei ght of t he gr out pour exceeds 5 f eet 4 i nches.