Attachment D UFGS 04 03 00 Conservation Treatment for Period Masonry.pdf

USACE / NAVFAC / AFCEC / NASA UFGS- 04 03 00 ( November 2017) Pr epar i ng Act i v i t y: USACE Super sedi ng UFGS- 04 01 20. 70 ( November 2015)

UNI FI ED FACI LI TI ES GUI DE SPECI FI CATI ONS

Ref er ences ar e i n agr eement wi t h UMRL dat ed Apr i l 2019

SECTI ON TABLE OF CONTENTS

DI VI SI ON 04 - MASONRY

SECTI ON 04 03 00

CONSERVATI ON TREATMENT FOR PERI OD MASONRY

11/17

PART 1 GENERAL

1. 1 REFERENCES

1. 2 DEFI NI TI ONS

1. 2. 1 Aggr egat es

1. 2. 2 Bi oci des

1. 2. 3 Bi nder

1. 2. 4 Di sper sed Li me Cr ack I nj ect i on

1. 2. 5 Consol i dant

1. 2. 6 Dut chman

1. 2. 7 Har vest ed

1. 2. 8 I n s i t u

1. 2. 9 Joi nt Seal ant

1. 2. 10 Lead Fl ashi ng

1. 2. 11 Li me Wash

1. 2. 12 Mockup

1. 2. 13 Mor t ar

1. 2. 14 New El ement s

1. 2. 15 Pat ch

1. 2. 16 Remedi at e

1. 2. 17 Remove

1. 2. 18 Repl ace

1. 2. 19 Repoi nt

1. 2. 20 Ret ool

1. 2. 21 St ucco

1. 2. 22 Sur f ace Tr eat ment

1. 2. 23 Test Panel

1. 2. 24 Tuckpoi nt i ng

1. 2. 25 Wat er Repel l ent

1. 2. 26 Wal l Syst em

1. 2. 27 Masonr y Tr eat ment Requi r ement ( MTR)

1. 2. 28 Sat ur at ed Sur f ace Dr y ( SSD)

1. 3 ADMI NI STRATI VE REQUI REMENTS

1. 3. 1 Pr e- I nst al l at i on Meet i ng

1. 4 SUBMI TTALS

1. 5 QUALI TY CONTROL

SECTI ON 04 03 00 Page 1

1. 5. 1 Qual i t y Cont r ol Pl an

1. 5. 2 Qual i f i cat i ons

1. 5. 2. 1 Hi st or i c Masonr y Consul t ant

1. 5. 2. 2 Masonr y Fi r m

1. 5. 2. 3 Fi el d Super vi sor

1. 5. 2. 4 Masonr y Appl i cat or

1. 5. 3 Pr oj ect Tr ai ni ng Def i ni t i on and Use

1. 5. 4 Mor t ar Anal yst

1. 5. 5 Document at i on

1. 5. 6 Cl eani ng and Rest or at i on Met hods

1. 5. 6. 1 Gener al Pr ocedur e

1. 5. 6. 2 Cl eani ng Pr oduct s and Pr ocedur es

1. 5. 6. 2. 1 Gener al Cl eani ng Requi r ement s

1. 5. 6. 2. 2 Cl eani ng Mock- Ups

1. 5. 7 Masonr y Rest or at i on Pr oduct s and Pr ocedur es

1. 5. 7. 1 Gener al Rest or at i on Requi r ement s

1. 5. 7. 2 Gener al Rest or at i on Mock- Up Requi r ement s

1. 5. 7. 2. 1 Mock- ups

1. 5. 7. 3 Rest or at i on Mock- Ups

1. 5. 7. 3. 1 Repoi nt i ng

1. 5. 7. 3. 2 Ret ool i ng St one Masonr y I n Si t u

1. 5. 7. 3. 3 Masonr y Removal and Repl acement

1. 5. 7. 3. 4 Repai r Mat er i al

1. 5. 7. 3. 4. 1 Pat chi ng

1. 5. 7. 3. 4. 2 Dut chman

1. 5. 7. 3. 5 Cr ack Repai r

1. 5. 7. 3. 6 Sur f ace Tr eat ment s

1. 5. 7. 3. 7 New Masonr y El ement s

1. 6 DELI VERY, STORAGE, AND HANDLI NG

1. 7 PROJECT/ SI TE CONDI TI ONS

1. 7. 1 Envi r onment al Requi r ement s

1. 7. 2 Masonr y I nst al l at i on Requi r ement s

1. 8 WARRANTY

1. 8. 1 Cl eani ng War r ant y

1. 8. 2 Repai r War r ant y

PART 2 PRODUCTS

2. 1 CLEANI NG MATERI ALS

2. 1. 1 Gener al Requi r ement s

2. 1. 2 Pai nt Remover s

2. 1. 3 Chemi cal Cl eaner s

2. 1. 4 Bi oci des

2. 1. 5 Li qui d St r i ppabl e Maski ng Agent

2. 1. 6 Cl eani ng I mpl ement s

2. 1. 7 Wat er

2. 2 REPAI R MATERI ALS

2. 2. 1 Gener al

2. 2. 2 Mor t ar and St ucco

2. 2. 2. 1 Test i ng and Mat chi ng

2. 2. 2. 2 Repl acement Mor t ar and St ucco

2. 2. 2. 3 Bi nder Cont ent

2. 2. 2. 4 Repoi nt i ng Mor t ar

2. 2. 2. 5 Admi xt ur es

2. 2. 3 Cr ack I nj ect i on

2. 2. 4 Repl acement Masonr y Mat er i al s

2. 2. 4. 1 Cl ay Br i ck

2. 2. 4. 2 St one

2. 2. 4. 3 Ter r a Cot t a

SECTI ON 04 03 00 Page 2

2. 2. 4. 4 Ar chi t ect ur al Pr ecast St one

2. 2. 5 Sur f ace Tr eat ment s

2. 2. 5. 1 Gener al

2. 2. 5. 2 Consol i dant s

2. 2. 5. 3 Wat er Repel l ent s

2. 2. 6 Mi scel l aneous Mat er i al s

2. 2. 6. 1 Cement i t i ous Gr out

2. 2. 6. 2 Met al At t achment s

2. 2. 6. 3 Lead Fl ashi ng

2. 3 EQUI PMENT

2. 3. 1 Cl eani ng Equi pment

2. 3. 1. 1 Sandbl ast i ng

2. 3. 1. 2 Wat er Bl ast i ng

2. 3. 1. 3 Al t er nat i ve Bl ast i ng Equi pment

2. 3. 2 Spr ay Equi pment

2. 3. 3 Dr i l l i ng Equi pment

2. 3. 4 Compr essed Ai r Suppl i es

2. 3. 5 Mat er i al Handl i ng and Associ at ed Equi pment

2. 3. 5. 1 Mi x i ng, Tr anspor t i ng, and Pl aci ng Job Mat er i al s

2. 3. 5. 2 Associ at ed Equi pment

2. 4 Mor t ar Mi x

2. 4. 1 Gener al

2. 4. 2 Bat chi ng

2. 4. 3 Cement and Li me Pr opor t i ons

2. 4. 4 Sand Pr opor t i ons

PART 3 EXECUTI ON

3. 1 EXAMI NATI ON

3. 1. 1 Fi el d ( I n Si t u) Mor t ar Exami nat i on

3. 1. 2 Taki ng and Pr epar at i on of Sampl es

3. 2 PREPARATI ON

3. 2. 1 Pr ot ect i on

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

3. 2. 3 Equi pment and Techni ques Demonst r at i on

3. 3 MASONRY CLEANI NG

3. 3. 1 Gener al

3. 3. 2 Chemi cal Cl eaner s

3. 3. 3 Pai nt Removal

3. 3. 4 Wat er Cl eani ng

3. 3. 4. 1 Pr essur e Spr ayi ng

3. 3. 4. 2 Hand Scr ubbi ng

3. 3. 4. 3 Ri nsi ng

3. 3. 5 Chemi cal Cl eani ng

3. 3. 5. 1 Gener al

3. 3. 5. 2 Sur f ace Pr ewet t i ng

3. 3. 5. 3 Aci di c Chemi cal Cl eani ng

3. 3. 5. 4 Al kal i ne Chemi cal Cl eani ng

3. 3. 5. 4. 1 Pr ewash Phase

3. 3. 5. 4. 2 Af t er wash Phase

3. 3. 5. 5 Ri nsi ng and pH Test i ng

3. 4 MASONRY REPAI R

3. 4. 1 Gener al

3. 4. 2 Repoi nt i ng Masonr y

3. 4. 2. 1 Wal l Pr epar at i on

3. 4. 2. 2 Pr esoaki ng Masonr y / Mor t ar Consi st ency / Li f t s

3. 4. 2. 3 Compr essi on / Joi nt Fi ni sh / Cur i ng

3. 4. 2. 4 Pr ot ect i on

3. 4. 3 Ret ool i ng St one Masonr y I n s i t u

SECTI ON 04 03 00 Page 3

3. 4. 4 Masonr y Removal and Repl acement

3. 4. 5 Mat er i al Repai r

3. 4. 5. 1 Sel ect i ve Demol i t i on

3. 4. 5. 2 Appl i cat i on of Subst i t ut e Repai r Mat er i al s

3. 4. 5. 3 Pat ch Anchor s

3. 4. 5. 4 Cl eanup

3. 4. 6 Dut chman Repai r s

3. 4. 7 Cr ack I nj ect i on wi t h Di sper sed Hydr at ed Li me ( DHL)

3. 4. 7. 1 Gener al

3. 4. 7. 2 Appl i cat i on of DHL

3. 4. 7. 3 Tool s and Equi pment

3. 4. 8 Sur f ace Tr eat ment s

3. 4. 8. 1 St ucco

3. 4. 8. 2 Li mewashes

3. 4. 8. 3 Wat er Repel l ent s I nf i l t r at i on

3. 4. 8. 4 St one Consol i dant s

3. 5 I NSTALLATI ON OF NEW ELEMENTS

3. 5. 1 St r uct ur al Upgr ades

3. 5. 2 Joi nt Seal ant and Lead Fl ashi ng

3. 6 FI NAL CLEANI NG

3. 7 PROTECTI ON OF WORK

3. 8 DEFECTI VE WORK

3. 9 FI NAL I NSPECTI ON

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

SECTI ON 04 03 00 Page 4

USACE / NAVFAC / AFCEC / NASA UFGS- 04 03 00 ( November 2017) Pr epar i ng Act i v i t y: USACE Super sedi ng UFGS- 04 01 20. 70 ( November 2015)

UNI FI ED FACI LI TI ES GUI DE SPECI FI CATI ONS

Ref er ences ar e i n agr eement wi t h UMRL dat ed Apr i l 2019

SECTI ON 04 03 00

CONSERVATI ON TREATMENT FOR PERI OD MASONRY

11/17

NOTE: Thi s gui de speci f i cat i on cover s t he r equi r ement s f or r est or at i on and cl eani ng of masonr y i n hi st or i c st r uct ur es.

Adher e t o UFC 1- 300- 02 Uni f i ed Faci l i t i es Gui de Speci f i cat i ons ( UFGS) For mat St andar d when edi t i ng t hi s gui de speci f i cat i on or pr epar i ng new pr oj ect speci f i cat i on sect i ons. Edi t t hi s gui de speci f i cat i on f or pr oj ect speci f i c r equi r ement s by addi ng, del et i ng, or r evi s i ng t ext . For br acket ed i t ems, choose appl i cabl e i t em( s) or i nser t appr opr i at e i nf or mat i on.

Remove i nf or mat i on and r equi r ement s not r equi r ed i n r espect i ve pr oj ect , whet her or not br acket s ar e present.

Comment s, suggest i ons and r ecommended changes f or t hi s gui de speci f i cat i on ar e wel come and shoul d be submi t t ed as a Cr i t er i a Change Request ( CCR) .

PART 1 GENERAL

NOTE: Wher e t he wor ds " as i ndi cat ed" ar e used, ensur e t hat s i zes, posi t i ons and ot her desi gnat ed i nf or mat i on ar e i ndi cat ed on t he desi gn dr awi ngs.

The f ol l owi ng publ i cat i ons, f r om t he Uni t ed St at es Depar t ment of t he I nt er i or - Nat i onal Par k Ser vi ce, pr ovi de usef ul gui dance i n t he r est or at i on of hi st or i c masonr y and may be i ncl uded as addenda t o t he speci f i cat i ons.

The Secr et ar y of t he I nt er i or ' s St andar ds f or t he Tr eat ment of Hi st or i c Pr oper t i es wi t h Gui del i nes f or Pr eser vi ng, Rehabi l i t at i ng, Rest or i ng, and Reconst r uct i ng Hi st or i c Bui l di ngs ( 1995) .

SECTI ON 04 03 00 Page 5

Pr eser vat i on Br i ef #1 - ( 2000) Assessi ng Cl eani ng and Wat er - Repel l ent Tr eat ment s f or Hi st or i c Masonr y Buildings

Pr eser vat i on Br i ef #2 - ( 1998) Repoi nt i ng Mor t ar Joi nt s i n Hi st or i c Br i ck Bui l di ngs

Pr eser vat i on Br i ef #6 - ( 1979) Danger s of Abr asi ve Cl eani ng t o Hi st or i c Bui l di ngs

Pr eser vat i on Br i ef #7 - ( 1979) The Pr eser vat i on of Hi st or i c Gl azed Ar chi t ect ur al Ter r a- Cot t a

Pr eser vat i on Br i ef #22 - ( 1990) The Pr eser vat i on and Repai r of Hi st or i c St ucco

Pr eser vat i on Br i ef #38 - ( 1995) Removi ng Gr af f i t i f r om Hi st or i c Masonr y

1. 1 REFERENCES

NOTE: Thi s par agr aph i s used t o l i s t t he publ i cat i ons c i t ed i n t he t ext of t he gui de speci f i cat i on. The publ i cat i ons ar e r ef er r ed t o i n t he t ext by basi c desi gnat i on onl y and l i s t ed i n t hi s par agr aph by or gani zat i on, desi gnat i on, dat e, and t i t l e.

Use t he Ref er ence Wi zar d' s Check Ref er ence f eat ur e when you add a Ref er ence I dent i f i er ( RI D) out s i de of t he Sect i on' s Ref er ence Ar t i c l e t o aut omat i cal l y pl ace t he r ef er ence i n t he Ref er ence Ar t i c l e. Al so use t he Ref er ence Wi zar d' s Check Ref er ence f eat ur e t o updat e t he i ssue dat es.

Ref er ences not used i n t he t ext wi l l aut omat i cal l y be del et ed f r om t hi s sect i on of t he pr oj ect speci f i cat i on when you choose t o r econci l e r ef er ences i n t he publ i sh pr i nt pr ocess.

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 CONFERENCE OF GOVERNMENTAL I NDUSTRI AL HYGI ENI STS ( ACGI H)

ACGI H 0100 ( 2015; Suppl 2002- 2016) Document at i on of t he Thr eshol d Li mi t Val ues and Bi ol ogi cal Exposur e I ndi ces

ASTM I NTERNATI ONAL ( ASTM)

ASTM A36/ A36M ( 2014) St andar d Speci f i cat i on f or Car bon St r uct ur al St eel

ASTM C1196 ( 2014) St andar d Test Met hod f or I n Si t u

SECTI ON 04 03 00 Page 6

Compr essi ve St r ess Wi t hi n Sol i d Uni t Masonr y Esi t mat ed Usi ng Fl at j ack Measurements

ASTM C1197 ( 2014) St andar d Test Met hod f or I n Si t u Measur ement of Masonr y Def or mabi l i t y Pr oper t i es Usi ng t he Fl at j ack Met hod

ASTM C1324 ( 2015) St andar d Test Met hod f or Exami nat i on and Anal ysi s of Har dened Masonr y Mor t ar

ASTM C1364 ( 2018) St andar d Speci f i cat i on f or Ar chi t ect ur al Cast St one

ASTM C1489 ( 2015) St andar d Speci f i cat i on f or Li me Put t y f or St r uct ur al Pur poses

ASTM C1531 ( 2015) St andar d Test Met hods f or I n Si t u Measur ement of Masonr y Mor t ar Joi nt Shear St r engt h I ndex

ASTM C1601 ( 2014) St andar d Test Met hod f or Fi el d Measur ement of Wat er Penet r at i on of Masonr y Wal l Sur f aces

ASTM C170/ C170M ( 2017) St andar d Test Met hod f or Compr essi ve St r engt h of Di mensi on St one

ASTM C1713 ( 2012) St andar d Speci f i cat i on f or Mor t ar s f or t he Repai r of Hi st or i c Masonr y

ASTM C207 ( 2018) St andar d Speci f i cat i on f or Hydr at ed Li me f or Masonr y Pur poses

ASTM C216 ( 2017) St andar d Speci f i cat i on f or Faci ng Br i ck ( Sol i d Masonr y Uni t s Made f r om Cl ay or Shal e)

ASTM C34 ( 2017) St andar d Speci f i cat i on f or St r uct ur al Cl ay Loadbear i ng Wal l Ti l e

ASTM C67/ C67M ( 2018) 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 C926 ( 2018b) St andar d Speci f i cat i on f or Appl i cat i on of Por t l and Cement - Based Plaster

ASTM E2260 ( 2012) St andar d Gui de f or Repoi nt i ng ( Tuckpoi nt i ng) Hi st or i c Masonr y

ASTM E2659 ( 2018) St andar d Pr act i ce f or Cer t i f i cat e Programs

ASTM E96/ E96M ( 2016) St andar d Test Met hods f or Wat er Vapor Tr ansmi ssi on of Mat er i al s

SECTI ON 04 03 00 Page 7

NATI ONAL PARK SERVI CE ( NPS)

NPS Hi st Pr op ( 2017) Nat i onal St andar ds f or t he Tr eat ment of Hi st or i c Pr oper t i es wi t h Gui del i nes f or Pr eser vi ng, Rehabi l i t at i ng, Rest or i ng, and Reconst r uct i ng Hi st or i c Buildings

NPS TPS Br i ef 1 ( 2000) Assessi ng Cl eani ng and Wat er - Repel l ent Tr eat ment s f or Hi st or i c Masonr y Bui l di ngs

NPS TPS Br i ef 2 ( 1998) Repoi nt i ng Mor t ar Joi nt s i n Hi st or i c Masonr y Bui l di ngs

THE MASONRY SOCI ETY ( TMS)

TMS MSJC ( 2016) 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

U. S. GENERAL SERVI CES ADMI NI STRATI ON ( GSA)

GSA HPTP 07656- 01 I nst al l i ng Lead St one Fl ashi ng t o Pr ot ect Masonr y Joi nt s

1. 2 DEFINITIONS

Ter ms ar e def i ned bel ow as appl i cabl e t o t hi s pr oj ect .

1. 2. 1 Aggregates

The sand component of mor t ar .

1. 2. 2 Biocides

A chemi cal t r eat ment t hat i nhi bi t s, det er s, or cont r ol s or gani c gr owt h.

Such gr owt h i s t ypi cal l y r emoved by c l eani ng f ol l owi ng bi oci de t r eat ment . .

1. 2. 3 Binder

The component of mor t ar t hat bi nds t oget her t he aggr egat e par t i c l es i nt o a cohesi ve mat er i al .

1. 2. 4 Di sper sed Li me Cr ack I nj ect i on

A r epai r met hod i n whi ch di sper sed l i me mat er i al i s i nj ect ed i nt o smal l cr acks r angi ng i n wi dt h f r om hai r l i ne t o 3. 2 mm 1/ 8 i n by use of needl e or syringe.

1. 2. 5 Consolidant

A chemi cal pr oduct meant t o st r engt hen l oose or det er i or at ed st one.

SECTI ON 04 03 00 Page 8

1. 2. 6 Dutchman

A r epai r met hod i n whi ch det er i or at ed st one i s r emoved i n par t and r epl aced wi t h sal vaged, har vest ed or new st one t o make a seaml ess pat ch.

1. 2. 7 Harvested

Uni t s r emoved f r om i nconspi cuous ar eas of t he bui l di ng.

1. 2. 8 I n s i t u

A t er m r ef er enci ng a r epai r pr ocedur e i n whi ch t he masonr y uni t s and mor t ar r emai n i n pl ace and ar e r epai r ed wi t hout r emoval f r om t he wal l syst em

1. 2. 9 Joi nt Seal ant

A f l exi bl e, chemi cal pr oduct t hat i s used t o cr eat e a weat her - t i ght seal at t he boundar y of masonr y uni t s wi t h ot her uni t s or di ssi mi l ar mat er i al s.

1. 2. 10 Lead Fl ashi ng

An ext r uded l ead mat er i al t hat i s i nser t ed i nt o j oi nt s t o assi st i n pr ecl udi ng wat er ent r y i nt o t he masonr y.

1. 2. 11 Li me Wash

A pr ot ect i ve sur f ace t r eat ment compr i sed of cal c i um hydr oxi de par t i c l es i n suspensi on i n wat er , al ong wi t h smal l amount s of cal c i um car bonat e, s i l i ca par t i c l es and ot her mi ner al s.

1. 2. 12 Mockup

Speci f i c ar ea on t he bui l di ng appr oved by Cont r act i ng Of f i cer t o demonst r at e t he abi l i t y t o appl y, mat ch and i nst al l speci f i ed mat er i al s.

1. 2. 13 Mortar

A mi xt ur e of bi nder s, aggr egat es, and pi gment s used f or r econst r uct i on, r epoi nt i ng or st ucco appl i cat i ons.

1. 2. 14 New El ement s

New, non- hi st or i c mat er i al s added t o masonr y st r uct ur es t o ai d i n t hei r abi l i t y t o r esi st l oads ( t ypi cal l y sei smi c) or t o r esi st wat er i nf i l t r at i on.

1. 2. 15 Patch

The use of subst i t ut e r epai r mat er i al s t o t r eat damaged or det er i or at ed masonr y uni t s i n s i t u.

1. 2. 16 Remediate

An i nt er vent i on of a hi st or i c masonr y st r uct ur e and i t s component mat er i al s wi t h t he i nt ent t o mai nt ai n t he or i gi nal f abr i c t o t he gr eat est ext ent possible.

1. 2. 17 Remove

Speci f i cal l y f or hi st or i c masonr y mat er i al s, t he t er m means t o det ach an

SECTI ON 04 03 00 Page 9 i t em f r om exi st i ng const r uct i on t o t he l i mi t s i ndi cat ed.

1. 2. 18 Replace

To r ei nst al l an i t em i n i t s or i gi nal posi t i on ( or wher e i ndi cat ed) af t er r emedi al t r eat ment , or t o dupl i cat e and r ei nst al l an ent i r e i t em wi t h new mat er i al ; wi t h t he or i gi nal i t em ser vi ng as t he pat t er n f or cr eat i ng t he duplicate.

1. 2. 19 Repoint

To r emove exi st i ng mor t ar j oi nt s t o t he speci f i ed dept h and r epl ace wi t h a mor t ar t hat mat ches i n col or , t ext ur e, and per f or mance wi t h wat er vapor t r ansmi ssi on, bond, har dness, and f l exi bi l i t y compat i bl e wi t h or i gi nal mor t ar , as assessed i n accor dance wi t h ASTM C1713.

1. 2. 20 Retool

A r epai r met hod i n whi ch a chi sel i s used t o r e- cr eat e t he sur r oundi ng st one t ext ur e f i ni sh by r emovi ng l oose pi eces of s t one.

1. 2. 21 Stucco

A mi xt ur e of bi nder s and aggr egat es, somet i mes i nc l udi ng ani mal hai r or f i ber s used f or t he r epai r t r eat ment of exi st i ng st ucco.

1. 2. 22 Sur f ace Tr eat ment

The appl i cat i on of t r adi t i onal mat er i al s or cont empor ar y chemi cal pr oduct s t o t he sur f ace of masonr y t o pr ovi de pr ot ect i on t o t he masonr y uni t s and mor t ar and/ or r educe wat er i nf i l t r at i on.

1. 2. 23 Test Panel

Speci f i c ar ea on t he bui l di ng appr oved by t he Cont r act i ng Of f i cer t o demonst r at e i ndi v i dual appl i cat or compet ency and wor kmanshi p pr of i c i ency pr i or t o t he st ar t of r est or at i on wor k.

1. 2. 24 Tuckpointing

Of t en cal l ed ski m- coat i ng, an Amer i can pr act i ce of sur f ace r epai r i ng mor t ar j oi nt s wi t hout t he r equi r ed r emoval of exi st i ng det er i or at ed mor t ar beneat h. Thi s pr act i ce i s not r ecommended f or mor t ar j oi nt r epai r wor k on hi st or i c masonr y. Ther e i s al so an accept abl e Br i t i sh f or m of t uckpoi nt i ng pr act i ce t hat i nvol ves car ef ul t hi n penci l i ng of smal l er j oi nt s wi t hi n l ar ger ones t o gi ve t he wal l t he appear ance of an ashl ar f i ni sh.

1. 2. 25 Wat er Repel l ent

A sur f ace- appl i ed chemci al i nt ended t o r educe l i qui d wat er ent r y i nt o a masonr y wal l wi t hout s i gni f i cant l y af f ect i ng t he vapr o t r ansmi ssi on pr oper t i es of t he or i gi nal mat er i al .

1. 2. 26 Wal l Syst em

A t er m used t o addr ess t he f act t hat masonr y st r uct ur es ar e compr i sed of di f f er ent mat er i al s but f unct i on hol i st i cal l y , r equi r i ng t hat al l r est or at i on and cl eani ng pr ocess t ake i nt o account t he i mpl i cat i ons of t he t r eat ment t o t he adj acent mat er i al s and t he bui l di ng as a whol e.

SECTI ON 04 03 00 Page 10

1. 2. 27 Masonr y Tr eat ment Requi r ement ( MTR)

Def i ned t r eat ment s t hat ar e r equi r ed by t he speci f i cat i on ( cont r act ) document s f or pr oj ect speci f i c r epai r s t o masonr y.

1. 2. 28 Sat ur at ed Sur f ace Dr y ( SSD)

Condi t i on of t he wal l sur f ace af t er wat er has been appl i ed suf f i c i ent t o sat ur at e mor e t han t he sur f ace, t hen al l owed t o dr y unt i l t he sur f ace i s dr y but t he body of t he masonr y st i l l has moi st ur e.

1. 3 ADMI NI STRATI VE REQUI REMENTS

1. 3. 1 Pr e- I nst al l at i on Meet i ng

Pr i or t o begi nni ng t he wor k of t hi s Sect i on, convene a meet i ng wi t h t he Cont r act i ng Of f i cer ' s Repr esent at i ve( s) t o r evi ew t he r equi r ement s of t he Qual i t y Cont r ol Pl an, Pr oj ect Tr ai ni ng Pr ogr am, i nst al l at i on pr ocedur es, l ocat i on of r equi r ed mockup ar eas, and al l j ob condi t i ons and pr ocesses.

Al l subcont r act i ng f i r ms i nvol ved wi t h t hi s wor k must par t i c i pat e i n t hi s meeting.

1. 4 SUBMITTALS

NOTE: Revi ew submi t t al descr i pt i on ( SD) def i ni t i ons i n Sect i on 01 33 00 SUBMI TTAL PROCEDURES and edi t t he f ol l owi ng l i s t t o r ef l ect onl y t he submi t t al s r equi r ed f or t he pr oj ect .

The Gui de Speci f i cat i on t echni cal edi t or s have desi gnat ed t hose i t ems t hat r equi r e Gover nment appr oval , due t o t hei r compl exi t y or cr i t i cal i t y , wi t h a " G. " Gener al l y, ot her submi t t al i t ems can be r evi ewed by t he Cont r act or ' s Qual i t y Cont r ol Syst em. Onl y add a “ G” t o an i t em, i f t he submi t t al i s suf f i c i ent l y i mpor t ant or compl ex i n cont ext of t he pr oj ect .

For submi t t al s r equi r i ng Gover nment appr oval on Ar my pr oj ect s, a code of up t o t hr ee char act er s wi t hi n t he submi t t al t ags may be used f ol l owi ng t he " G" desi gnat i on t o i ndi cat e t he appr ovi ng aut hor i t y.

Codes f or Ar my pr oj ect s usi ng t he Resi dent Management Syst em ( RMS) ar e: " AE" f or Ar chi t ect - Engi neer ; " DO" f or Di st r i c t Of f i ce ( Engi neer i ng Di v i s i on or ot her or gani zat i on i n t he Di st r i c t Of f i ce) ; " AO" f or Ar ea Of f i ce; " RO" f or Resi dent Of f i ce; and " PO" f or Pr oj ect Of f i ce. Codes f ol l owi ng t he " G" t ypi cal l y ar e not used f or Navy, Ai r For ce, and NASA pr oj ect s.

The " S" f ol l owi ng a submi t t al i t em i ndi cat es t hat t he submi t t al i s r equi r ed f or t he Sust ai nabi l i t y eNot ebook t o f ul f i l l f eder al l y mandat ed sust ai nabl e r equi r ement s i n accor dance wi t h Sect i on 01 33 29 SUSTAI NABI LI TY REPORTI NG. Locat e t he " S" submi t t al under t he SD number t hat best descr i bes t he

SECTI ON 04 03 00 Page 11 submi t t al i t em.

Choose t he f i r st br acket ed i t em f or Navy, Ai r For ce and NASA pr oj ect s, or choose t he second br acket ed i t em f or Ar my pr oj ect s.

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 . ] [ 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 al s wi t h an " S" ar e f or i ncl usi on i n t he Sust ai nabi l i t y eNot ebook, i n conf or mance t o Sect i on 01 33 29 SUSTAI NABI LI TY REPORTI NG. 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- 01 Pr econst r uct i on Submi t t al s

Qual i t y Cont r ol Pl an; G[ , [ _____] ]

Pr oj ect Tr ai ni ng Pr ogr am; G[ , [ _____] ]

Qual i f i cat i ons; G[ , [ _____] ]

SD- 02 Shop Dr awi ngs; G[ , [ _____] ]

Phot ogr aphi c Document at i on

St r uct ur al Upgr ades; G[ , [ _____] ]

SD- 03 Pr oduct Dat a

Qualifications

Cl eani ng and Rest or at i on Met hods; G[ , [ _____] ]

Cl eani ng Mat er i al s; G[ , [ _____] ]

Biocides

Repl acement Mor t ar And St ucco; G[ , [ ____] ]

Mor t ar Mi x; G[ , [ _____] ]

Wat er Repel l ent s I nf i l t r at i on; G[ , [ _____] ]

St one Consol i dant s; G[ , [ _____] ]

SD- 04 Sampl es

Mock- ups; G[ , [ _____] ]

SD- 05 Desi gn Dat a

Cal cul at i ons f or St r uct ur al Upgr ades; G[ , [ _____] ]

SD- 06 Test Repor t s

Test i ng and Mat chi ng

SECTI ON 04 03 00 Page 12

Exi st i ng Seal ant s f or Asbest os and PCBs

SD- 07 Cer t i f i cat es

Repai r Mat er i al s

1. 5 QUALI TY CONTROL

1. 5. 1 Qual i t y Cont r ol Pl an

[ Pr i or t o begi nni ng r est or at i on and cl eani ng wor k, submi t a wr i t t en Qual i t y Cont r ol Pl an. ] [ I ncl ude a separ at e sect i on i n t he over al l pr oj ect Qual i t y Cont r ol Pl an speci f i cal l y addr essi ng t hi s r est or at i on and cl eani ng wor k. ] Do not pr oceed wi t hout wr i t t en appr oval of t he Qual i t y Cont r ol Pl an. At a mi ni mum, i ncl ude t he f ol l owi ng i t ems i n t he Qual i t y Cont r ol Pl an:

a. Descr i be met hods of dust cont ai nment dur i ng t he wor k speci f i c t o t he wor k of t hi s sect i on.

b. Descr i be t he met hods of pr ot ect i ng sur r oundi ng masonr y, wi ndows, door s, r oof , and bui l di ng t r i m as wel l as sur r oundi ng l andscape. Pr ovi de dr awi ngs of pr ot ect i on when r equest ed.

c. Descr i be t he wor k pr ocedur es, mat er i al s, and pr oposed t ool s t o use f or each Masonr y Tr eat ment Requi r ement ( MTR) speci f i ed.

d. Descr i be t he sequence of each MTR.

e. Descr i be how each MTR sequence and t he over al l const r uct i on schedul e changes wi t h weat her var i at i ons and how compl et ed wor k wi l l be protected.

f . Descr i be t he met hods f or sur veyi ng or i gi nal l ayout and col l ect i ng dat um poi nt s and pl umb l i nes f or r ebui l di ng masonr y.

g. Descr i be t he met hods f or shor i ng and pr ovi di ng a saf e wor ki ng environment.

h. Descr i be t he met hods f or sel ect deconst r uct i on of i ndi v i dual masonr y uni t s and t ool s/ met hods f or c l eani ng t he masonr y f or r euse.

i . Descr i be t he met hod and appr oach t o mor t ar j oi nt r emoval .

j . Descr i be t he met hod and appr oach f or assur i ng r epai r mat er i al compat i bi l i t y wi t h or i gi nal mat er i al s.

k. Descr i be t he met hod and appr oach t o c l eani ng mor t ar , coat i ng, smear s and ol d pat chi ng mat er i al s f r om t he masonr y sur f aces.

l . Descr i be, i n det ai l , t he pr ocedur es r el at i ng t o t echni ques and t ool s pr oposed f or masonr y mat chi ng.

m. Descr i be t he compl et e masonr y r emoval and mat chi ng pr ocedur es; i ncl ude equi pment , appr oach, l engt h of t i me t he masonr y wi l l be out of t he wal l , document at i on on mappi ng t he l ocat i on, and wher e ( on- si t e or i n shop) t he masonr y uni t s wi l l be r epai r ed.

n. Descr i be t he pr ocedur e f or mat chi ng of di f f er ent col or s at di f f er ent

SECTI ON 04 03 00 Page 13 locations.

o. Descr i be t he pr ocedur e f or mi xi ng and mat chi ng of r epai r mat er i al s.

p. Descr i be t he met hods and syst em by whi ch t he use of r ecl ai med masonr y uni t s can be ut i l i zed.

q. Descr i be t he met hods f or set t i ng masonr y back i nt o i t s or i gi nal posi t i on and mai nt ai ni ng t he or i gi nal bond pat t er ns and j oi nt wi dt h.

r . Descr i be t he met hods of t r ansi t i on poi nt s wher e r epl acement / pr eser vat i on wor k wi l l meet t he or i gi nal hi st or i c wor k.

s. Descr i be t he on- si t e pr oj ect t r ai ni ng pr ogr am. Pr ovi de t he oppor t uni t y f or wor ker s t o be t r ai ned i n each masonr y t r eat ment r equi r ement ( MTR) as wor k pr oceeds.

1. 5. 2 Qualifications

1. 5. 2. 1 Hi st or i c Masonr y Consul t ant

a. Secur e t he ser vi ces of a hi st or i c masonr y consul t ant wi t h a mi ni mum of 10 year s exper i ence appl y i ng NPS Hi st Pr op as t hey r el at e t o t he wor k i n t hi s sect i on.

b. Submi t a r esume t hat descr i bes f i ve r el evant pr oj ect s wi t hi n t hat per i od and i ncl ude how NPS Hi st Pr op was appl i ed t o t he wor k of s i mi l ar scope and scal e and what j ur i sdi ct i on or agency was i nvol ved i n appr ovi ng t he wor k. .

c. The consul t ant ' s ser vi ces i nc l ude:

( 1) I nvest i gat i ng t he condi t i on of t he masonr y mat er i al s and mor t ar .

( 2) Ar r angi ng f or mat er i al anal ys i s i n t he l abor at or y

( 3) Recommendi ng appr opr i at e c l eani ng met hods and mat er i al s

( 4) Recommendi ng r est or at i on opt i ons.

( 5) Pr ovi di ng pr oj ect speci f i c speci f i cat i ons.

( 6) Pr ovi di ng an on- si t e t r ai ni ng pr ogr am.

( 7) Pr ovi di ng qual i t y cont r ol ser vi ces dur i ng const r uct i on.

( 8) Recommendi ng appr opr i at e r epai r and r est or at i on mat er i al s.

1. 5. 2. 2 Masonr y Fi r m

a. The f i r m per f or mi ng t he masonr y wor k must have a mi ni mum of f i ve year s exper i ence on r el evant pr oj ect s.

b. The f i r m must have compl et ed wor k s i mi l ar i n mat er i al , desi gn, and ext ent t o t hat i ndi cat ed f or t hi s Pr oj ect and demonst r at e a r ecor d of successf ul i n- ser vi ce per f or mance.

c. Pr oven i mpl ement at i on of NPS Hi st Pr op and r el at ed Pr eser vat i on Br i ef s ar e r equi r ed.

SECTI ON 04 03 00 Page 14

d. Submi t a r esume t hat descr i bes t he r equi r ed exper i ence.

1. 5. 2. 3 Fi el d Super vi sor

Ret ai n an exper i enced f ul l - t i me super vi sor on t he pr oj ect s i t e at al l t i mes when masonr y r est or at i on i s i n pr ogr ess. A s i ngl e i ndi v i dual must be r esponsi bl e f or super vi s i ng t he hi st or i c masonr y r est or at i on wor k t hr oughout t he dur at i on of t he pr oj ect .

Submi t a r esume t hat descr i bes t he r equi r ed exper i ence.

1. 5. 2. 4 Masonr y Appl i cat or

a. Empl oy cr af t speopl e who ar e exper i enced wi t h and speci al i ze i n r est or at i on wor k of t he t ypes t hey wi l l be per f or mi ng.

b. Al l masonr y r est or at i on t r eat ment s must be per f or med by a cr af t sper son t hat i s f ami l i ar wi t h hi st or i c masonr y const r uct i on and has wor ked on hi st or i c masonr y pr oj ect s f or at l east f i ve year s.

c. Onl y ski l l ed t echni c i ans who ar e f ami l i ar and exper i enced wi t h t he mat er i al s and met hods speci f i ed may be used.

d. Submi t r esumes f or al l hi st or i c masonr y appl i cat or s, demonst r at i ng t he r equi r ed exper i ence.

1. 5. 3 Pr oj ect Tr ai ni ng Def i ni t i on and Use

I n addi t i on t o f i ve year s demonst r abl e exper i ence on masonr y r est or at i on pr oj ect s, of f er wor ker s pr oj ect t r ai ni ng cer t i f i cat e( s) wi t hi n t he f r amewor k of ASTM E2659. Pr oj ect t r ai ni ng cer t i f i cat es ar e ear ned by i ndi v i dual wor ker s and i ssued wi t h t he under st andi ng t hat t hey ar e f or l i mi t ed t i me use, enf or ceabl e onl y t o t hi s speci f i c pr oj ect and f or a speci f i c MTR. I t i s not necessar y, nor a r equi r ement of t hi s speci f i cat i on, t hat al l r est or at i on wor ker s obt ai n al l pr oj ect t r ai ni ng cer t i f i cat es of f er ed. Rat her i t i s desi r abl e t hat wor ker s be t r ai ned f or each pr oj ect speci f i c t ask t hey wi l l per f or m t o ensur e t he hi ghest qual i t y r esul t s f r om t he c l eani ng and r est or at i on pr ogr am.

1. 5. 4 Mor t ar Anal yst

Labor at or y mor t ar anal ysi s equi pment shoul d be oper at ed by and r esul t s anal yzed by t r ai ned per sonnel exper i enced wi t h anal ysi s of hi st or i c masonr y mortar.

1. 5. 5 Documentation

Submi t di gi t al phot ogr aphi c document at i on of t he al l phases of masonr y r est or at i on, i nc l udi ng pr i or t o t he st ar t of r est or at i on wor k.

Pr ovi de t hor ough phot o document at i on of t he pr oj ect and pr oj ect det ai l s and t ar get ed ar eas.

1. 5. 6 Cl eani ng and Rest or at i on Met hods

1. 5. 6. 1 Gener al Pr ocedur e

a. Submi t t he c l eani ng and r est or at i on met hods, and mat er i al s sel ect ed f or

SECTI ON 04 03 00 Page 15 a speci f i c st r uct ur e f or appr oval bef or e wor k st ar t s.

b. Take i nt o account t he t ot al const r uct i on syst em of t he bui l di ng t o be wor ked upon, i nc l udi ng di f f er ent masonr y and mor t ar mat er i al s, as wel l as non- masonr y el ement s whi ch may be af f ect ed by t he wor k.

c. Ut i l i ze mockups t o i dent i f y t he appr opr i at e c l eani ng and r est or at i on t r eat ment and mat er i al s and set t he st andar d f or each pr oj ect t ask.

d. Demonst r at e t he cor r ect execut i on of t he appr oved cl eani ng and r est or at i on met hods and mat er i al s dur i ng t he on- si t e wor kmanshi p t r ai ni ng pr ogr am wi t hi n t he f r amewor k of ASTM E2659.

1. 5. 6. 2 Cl eani ng Pr oduct s and Pr ocedur es

1. 5. 6. 2. 1 Gener al Cl eani ng Requi r ement s

a. Est abl i sh c l eani ng pr oduct s and pr ocedur es dur i ng t he mockup pr ocess.

b. Sel ect t he l east aggr essi ve met hod used t o achi eve t he desi r ed l evel of cleanliness.

c. Wher e chemi cal pr oduct s ar e sel ect ed f or c l eani ng, use t hem i n accor dance wi t h t he manuf act ur er ' s i nst r uct i ons.

1. 5. 6. 2. 2 Cl eani ng Mock- Ups

a. Demonst r at e t he mat er i al s, equi pment , and met hods t o be used i n c l eani ng i n a t est sect i on appr oxi mat el y 1 met er by 1 met er 3 f eet by 3 feet.

b. Locat e t est pat ches i n i nconspi cuous ar eas of t he bui l di ng. The ar eas t est ed ar e subj ect t o appr oval by t he Cont r act i ng Of f i cer . The ar eas t est ed must exhi bi t soi l i ng char act er i st i cs r epr esent at i ve of t hose l ar ger ar eas t o be c l eaned.

c. Adj ust t he c l eani ng pr ocess as r equi r ed and t he t est sect i on r er un unt i l an accept abl e pr ocess i s obt ai ned.

d. Conduct t est s on ar eas t o be st r i pped of pai nt .

e. Al l ow t est ed ar eas t o dr y bef or e a det er mi nat i on i s made on t he ef f ect i veness of a par t i cul ar t r eat ment .

1. 5. 7 Masonr y Rest or at i on Pr oduct s and Pr ocedur es

1. 5. 7. 1 Gener al Rest or at i on Requi r ement s

a. Do not use masonr y or mor t ar i n t he wor k unt i l t he mock- ups and t he r epr esent ed mat er i al and wor kmanshi p have been submi t t ed and appr oved.

b. Demonst r at e t he met hods and qual i t y of wor kmanshi p t o be per f or med i n each masonr y t r eat ment r equi r ement ( MTR) . Pr ovi de a mock- up f or each MTR i ndi cat ed.

1. 5. 7. 2 Gener al Rest or at i on Mock- Up Requi r ement s

a. Thr oughout r est or at i on, r et ai n appr oved mock- up panel s i n undi st ur bed condi t i on, sui t abl y mar ked, as a st andar d f or j udgi ng compl et ed wor k.

SECTI ON 04 03 00 Page 16

b. Revi ew manuf act ur er ' s pr oduct dat a sheet s t o det er mi ne sui t abi l i t y of each pr oduct f or each sur f ace.

c. Appl y pr oduct s usi ng manuf act ur er - appr oved appl i cat i on met hods, det er mi ni ng act ual r equi r ement s f or appl i cat i on.

d. Obt ai n appr oval as t o t he pr eser vat i on t r eat ment appr oach, desi gn, and wor kmanshi p t o i ncl ude, but not l i mi t ed t o t he ver i f i cat i on of al l mat er i al appl i cat i ons and f i ni shes as speci f i ed t o t he r equi r ement s of col or , t ext ur e, pr of i l es, and f i ni shes bef or e pr oceedi ng wi t h wor k.

1. 5. 7. 2. 1 Mock-ups

May be per f or med on i nconspi cuous sect i ons of act ual const r uct i on under t he same weat her condi t i ons expect ed t he r emai nder of t he wor k.

a. Locat i on and number as di r ect ed[ , but no mor e t han [ _____] ] .

b. Si ze: 1 m by 1 m 3 f eet by 3 f eet or as appr opr i at e f or t he r epai r specified.

c. Repai r unaccept abl e wor k.

1. 5. 7. 3 Rest or at i on Mock- Ups

1. 5. 7. 3. 1 Repointing

Repoi nt mor t ar j oi nt s, mi ni mum accept abl e mock up di mensi ons: t wel ve f eet i n l engt h - 2/ 3 hor i zont al j oi nt s and 1/ 3 ver t i cal j oi nt s. Demonst r at e met hod f or cut t i ng out mor t ar j oi nt s, pr epar i ng wal l f or r epoi nt i ng, mi x i ng mor t ar , i nst al l i ng mor t ar and cur i ng t he mor t ar . Pr epar e and pl ace r epoi nt i ng mor t ar i n accor dance wi t h NPS TPS Br i ef 2 and i n compl i ance wi t h NPS Hi st Pr op.

1. 5. 7. 3. 2 Ret ool i ng St one Masonr y I n Si t u

NOTE: Common hi st or i c f i ni sh t ext ur es i ncl ude, but ar e not l i mi t ed t o, cor dur oy and poi nt chi sel finishes.

Demonst r at e t r eat ment t echni que and met hods t o r et ool t hr ee det er i or at ed st one f aces i n s i t u i n al l known hi st or i c pr of i l e t ext ur es i dent i f i ed.

1. 5. 7. 3. 3 Masonr y Removal and Repl acement

Ful l y r emove masonr y and r epl ace t o speci f i ed di mensi ons and t ext ur e.

Sel ect s i ze of masonr y uni t s r epr esent i ng t ypi cal condi t i ons. Ret ur n one masonr y uni t t o same l ocat i on, set t o sur r oundi ng pr of i l e j oi nt wi dt h and bond pat t er n. Set masonr y uni t usi ng speci f i ed mor t ar . Conf i r m wi t h Cont r act i ng Of f i cer ' s Repr esent at i ve t hat t he r epl acement masonr y uni t s meet speci f i cat i on r equi r ement s f or mat chi ng and t hat suf f i c i ent quant i t y r equi r ed f or t he wor k have been i dent i f i ed. Leave one st one dr y- set i nt o openi ng set on wood shi ms f or eval uat i on and appr oval of pr epar at i on conditions.

SECTI ON 04 03 00 Page 17

1. 5. 7. 3. 4 Repai r Mat er i al

1. 5. 7. 3. 4. 1 Patching

Appl y r epai r mat er i al on at l east t wo masonr y uni t s f or r epai r . I ncl ude one masonr y uni t on whi ch t o demonst r at e pr of i c i ency i n r emovi ng pr evi ous pat chi ng mat er i al and r epai r i ng wi t h new subst i t ut e r epai r mat er i al .

I ncl ude t he r emoval of met al anchor s at t wo l ocat i ons and f i l l i n t he hol es wi t h r epai r mat er i al on t he second masonr y uni t ( wher e appl i cabl e) .

1. 5. 7. 3. 4. 2 Dutchman

Under t ake dut chman r epai r s i n t wo l ocat i ons, i ncl udi ng one t hat i s onl y cut and pr epar ed f or appl i cat i on. Demonst r at e t he qual i t y of t he st one i nser t , as wel l as t he wor kmanshi p and t echni ques t o be per f or med i n t he dut chman r epai r s. Do not pr oceed wi t h ot her dut chman r epai r s unt i l t he t echni que has been appr oved.

1. 5. 7. 3. 5 Cr ack Repai r

Repai r one cr ack, 600 mm 2 f eet i n l engt h, usi ng mor t ar . Repai r one cr ack, 600 mm 2 f eet i n l engt h, usi ng di sper sed hydr at ed l i me i nj ect i on t echni que wi t h appr opr i at e r epai r mat er i al .

1. 5. 7. 3. 6 Sur f ace Tr eat ment s

I nst al l a mi ni mum 1. 5 squar e met er 16 squar e f oot mockup f or each sur f ace t r eat ment on each subst r at e t o be t r eat ed. For st ucco, demonst r at e t he means f or i nst al l i ng each coat ; i ncl udi ng mechani cal suppor t syst ems such as wood or met al l at h. For wat er r epel l ent s and/ or consol i dant s, demonst r at e t he equi pment and i nst al l at i on pr ocedur e. Al l ow 48 hour s f or l i mewash appl i cat i ons t o dr y t o t hei r f i nal col or and appear ance.

1. 5. 7. 3. 7 New Masonr y El ement s

NOTE: Consi der at i on of new el ement s on a hi st or i c st r uct ur e shoul d onl y be under t aken once t he addi t i on i s appr oved by t he Cont r act i ng Of f i cer .

New accessor i es ar e i nt ended t o pr ovi de st r uct ur al st r engt heni ng or f aci l i t at e weat her pr ot ect i on.

I nst al l new component s i n a manner demonst r at i ng t hei r f i nal i nst al l at i on on t he st r uct ur e.

1. 6 DELI VERY, STORAGE, AND HANDLI NG

a. Fur ni sh cement i n sui t abl e bags used f or packagi ng cement s.

b. Pr ovi de packages wi t h l abel i ng t hat c l ear l y def i nes cont ent s, manuf act ur er , and bat ch i dent i f i cat i on.

c. Pr ovi de det er gent s, masonr y c l eaner s, pai nt r emover s, sol vent s, epoxi es and ot her chemi cal s used f or masonr y c l eani ng i n seal ed cont ai ner s t hat l egi bl y show t he desi gnat ed name, f or mul a or speci f i cat i on number , quant i t y, dat e of manuf act ur e, manuf act ur er ' s f or mul at i on number , manuf act ur er ' s di r ect i ons i ncl udi ng any war ni ngs and speci al pr ecaut i ons, and name of manuf act ur er .

SECTI ON 04 03 00 Page 18

d. St or e mat er i al s i n weat her t i ght st r uct ur es whi ch wi l l pr ot ect al l mat er i al s f r om moi st ur e and cont ami nant s.

e. St or e accessor i es t o avoi d cont ami nat i on and det er i or at i on.

f . Do not use admi xt ur es whi ch have been i n st or age onsi t e f or s i x mont hs or l onger , or whi ch have been subj ect ed t o f r eezi ng, unl ess r et est ed and pr oven t o meet t he speci f i ed r equi r ement s.

1. 7 PROJECT/ SI TE CONDI TI ONS

1. 7. 1 Envi r onment al Requi r ement s

a. Do not pl ace mat er i al s when weat her condi t i ons adver sel y af f ect t he qual i t y of t he f i ni shed pr oduct .

b. Do not pl ace masonr y or mor t ar when t he ai r or sur f ace t emper at ur e i s bel ow 5 degr ees C 40 degr ees F i n t he shade and wi l l r emai n so f or at l east 48 hour s af t er compl et i on of t he wor k. Heat ed encl osur es may be used t o over come ambi ent weat her r est r i c t i ons, wher e such encl osur es ar e f easi bl e.

c. Do not pl ace masonr y or mor t ar when ai r or sur f ace t emper at ur e i s above 35 degr ees C 90 degr ees F wi t h a wi nd speed above13 ki l omet er s per hour 8 mi l es per hour and wi l l r emai n so f or at l east 48 hour s af t er compl et i on of t he wor k.

d. Do not pl ace masonr y or mor t ar when ai r or sur f ace t emper at ur e i s above 38 degr ees C100 degr ees F wi t h or wi t hout wi nd and wi l l r emai n so f or at l east 48 our s af t er compl et i on of t he wor k.

e. Do not pr oduct or pl ace mat er i al s dur i ng per i ods of r ai n or ot her pr eci pi t at i on. St op mat er i al pl acement s, and pr ot ect al l i n- pl ace mat er i al f r om exposur e, dur i ng per i ods of r ai n or ot her pr eci pi t at i on.

f . Cl ean masonr y sur f aces when ai r t emper at ur es ar e above 5 degr ees C 40 degr ees F and wi l l r emai n so unt i l masonr y has dr i ed out , but f or not l ess t han 7 days af t er compl et i on of t he wor k.

g. Do not per f or m wor k i n wi nd condi t i ons t hat may bl ow mat er i al s ont o sur f aces not i nt ended t o be t r eat ed.

1. 7. 2 Masonr y I nst al l at i on Requi r ement s

a. Phase wor k dur i ng hot weat her by per f or mi ng wor k on t he shady s i de( s) of t he bui l di ng dur i ng dayl i ght hour s and on t he dayl i ght s i de( s) of t he bui l di ng dur i ng cool er eveni ng hour s t o pr event pr emat ur e evapor at i on of t he wat er f r om t he mor t ar .

b. Do not use f r ozen mat er i al s or mat er i al s mi xed or coat ed wi t h i ce or f r ost . Do not appl y mat er i al s t o f r ozen sur f aces; al l ow compl et e t hawi ng pr i or t o i nst al l at i on.

c. Do not l ower t he f r eezi ng poi nt of mor t ar by t he use of admi xt ur es or ant i - f r eeze agent s. Do not add chl or i des or admi xt ur es cont ai ni ng gr eat er t han 0. 2 per cent chl or i des t o t he mor t ar , per TMS MSJC.

d. Pr event mor t ar f r om st ai ni ng t he f ace of t he masonr y or ot her exposed

SECTI ON 04 03 00 Page 19 sur f aces. I mmedi at el y r emove mor t ar t hat comes i n cont act wi t h such sur f aces. Cover par t i al l y compl et ed wor k when wor k i s not i n pr ogr ess. Pr ot ect s i l l s , l edges and pr oj ect i ons f r om mor t ar dr oppi ngs. Bui l di ng damage r esul t i ng f r om wor k of t hi s Sect i on i s t he Cont r act or ' s r esponsi bi l i t y . Rest or e damaged ar eas t o t he sat i sf act i on of t he Owner at no expense t o t he Owner . Do not appl y pr oduct s under condi t i ons out s i de pr oduct manuf act ur er ' s r equi r ement s.

1. 8 WARRANTY

1. 8. 1 Cl eani ng War r ant y

War r ant c l eani ng pr ocedur es f or a per i od of t wo year s agai nst har m t o subst r at e ( masonr y and mor t ar ) or t o adj acent mat er i al s i ncl udi ng, but not l i mi t ed t o di scol or at i on of subst r at e f r om i mpr oper pr ocedur es or usage, chemi cal damage f r om i nadequat e r i nse pr ocedur es, and abr asi ve damage f r om i mpr oper pr ocedur es.

1. 8. 2 Repai r War r ant y

War r ant r epai r pr ocedur es, i ncl udi ng r epoi nt i ng, f or a per i od of t wo year s agai nst : di scol or at i on or mi smat ch of new mor t ar t o adj acent or i gi nal hi st or i c mor t ar , di scol or at i on or damage t o masonr y f r om i mpr oper mor t ar c l ean- up, l oss of bond bet ween masonr y and mor t ar , f r act ur i ng of masonr y edges f r om i mpr oper mor t ar j oi nt pr epar at i on pr ocedur es or i mpr oper mor t ar f or mul at i on, and occur r ence of ef f l or escence f r om i mpr oper r epai r procedures.

PART 2 PRODUCTS

2. 1 CLEANI NG MATERI ALS

2. 1. 1 Gener al Requi r ement s

Sel ect i on of appr opr i at e c l eani ng pr oduct s r equi r es a c l ear under st andi ng of t he masonr y mat er i al s t o be c l eaned, a r at i onal e f or t he c l eani ng, and an under st andi ng of t he ant i c i pat ed l evel of c l eanl i ness expect ed f r om t he c l eani ng pr ogr am. Over l y aggr essi ve c l eani ng met hods and mat er i al s can cause subt l e, l ong- t er m damage t o masonr y uni t s. Use pr oduct s t hat have a mi ni mum 5 year per f or mance r ecor d on r el evant pr oj ect s. Sel ect t he pr oduct s pr edi cat ed on l ong- t er m negat i ve ef f ect s t o t he masonr y r at her t han cur r ent l evel of c l eanl i ness of t he compar abl e st r uct ur e.

2. 1. 2 Pai nt Remover s

a. Pr ovi de chemi cal pai nt r emover s t hat ar e wat er sol ubl e, l ow t oxi c i t y pr oduct s, ef f ect i ve f or r emoval of pai nt on masonr y wi t hout al t er i ng, damagi ng, or di scol or i ng t he masonr y sur f ace.

b. Pr ovi de commer ci al l y avai l abl e poul t i c i ng mat er i al s desi gned t o adher e t o and peel of f pai nt wi t hout damagi ng t he under l y i ng masonr y or pr oj ect speci f i c mi xt ur es t hat i ncl ude absor bent mat er i al s and cl eani ng sol ut i ons whi ch can be demonst r at ed t o do no har m t o t he masonr y.

2. 1. 3 Chemi cal Cl eaner s

NOTE: Chemi cal c l eaner s r ange f r om aci di c t o al kal i ne i n t hei r chemci al makeup. Sel ect ed

SECTI ON 04 03 00 Page 20 pr oduct s must be sui t abl e f or t he t ype of masonr y uni t s t o be c l eaned.

a. Pr ovi de commer ci al l y avai l abl e pr oduct s t hat have a pr oven r ecor d of c l eani ng masonr y wi t hout al t er i ng, damagi ng or di scol or i ng t he masonr y uni t s, mor t ar or sur r oundi ng mat er i al s.

b. Pr ovi de t he associ at ed pr e and post t r eat ment mat er i al t o neut r al i ze t he l ong t er m ef f ect s of t he chemi cal s.

2. 1. 4 Biocides

Pr ovi de commer ci al l y avai l abl e bi oci des wi t h accompanyi ng pr oduct l i t er at ur e cont ai ni ng i nf or mat i on on t he pr oduct as wel l as t he expect ed ser vi ce l i f e of t he mat er i al and any det r i ment al ef f ect s i t may have on t he masonr y or mor t ar .

2. 1. 5 Li qui d St r i ppabl e Maski ng Agent

Pr ovi de manuf act ur er ' s st andar d l i qui d, f i l m- f or mi ng, st r i ppabl e maski ng mat er i al f or pr ot ect i ng gl ass, met al , and pol i shed st one sur f aces f r om t he damagi ng ef f ect of aci di c and al kal i ne masonr y c l eaner s.

2. 1. 6 Cl eani ng I mpl ement s

Fur ni sh br ushes t hat cont ai n nat ur al or nyl on f i ber br i st l es onl y. Do not use met al l i c wi r e br ushes. Use scr aper s and appl i cat i on paddl es made of wood wi t h r ounded edges. Met al l i c t ool s ar e not per mi t t ed.

2. 1. 7 Water

NOTE: Fi l t er i ng and neut r al i z i ng pH i s r ar el y conduct ed f or masonr y c l eani ng, except f or st at ues or museum pi eces.

Obt ai n pot abl e wat er f r om a l ocal sour ce. [ Fi l t er t o r emove mi ner al s r esul t i ng i n a neut r al pH, pr i or t o appl i cat i on. ]

2. 2 REPAI R MATERI ALS

NOTE: Use mat er i al s, physi cal and chemi cal pr oper t i es, and composi t i on of masonr y and mor t ar i n r enovat i on wor k t hat mat ch t he or i gi nal exi st i ng masonr y and mor t ar t o be r epai r ed, unl ess sampl es and t est i ng det er mi ne t hat exi st i ng mi xt ur es and mat er i al s ar e f aul t y or nonper f or mi ng. Masonr y mat er i al s used f or r epai r and r enovat i on shal l mat ch t he or i gi nal exi st i ng hi st or i c mat er i al s as c l osel y as possi bl e i n composi t i on, col or , t ext ur e, st r engt h, s i ze, f i ni shi ng and por osi t y. Ref er t o ASTM C1713 f or mat chi ng mor t ar .

SECTI ON 04 03 00 Page 21

2. 2. 1 General

Use r epai r mat er i al s of one t ype and f r om one sour ce, when used i n r epai r t r eat ment s t hat wi l l have sur f aces exposed i n t he f i ni shed st r uct ur e.

2. 2. 2 Mor t ar and St ucco

NOTE: Mor t ar t ypes L and K ar e not i ncl uded i n ASTM C270. Type L mor t ar uses onl y hydr at ed l i me or l i me put t y as bi nder . Type K mor t ar has t ypi cal pr opor t i ons i n t he r ange of 1 par t cement , 2 t o 3 par t s l i me, and 2 1/ 4 t o 3 t i mes t he combi ned cement and l i me component s as sand.

2. 2. 2. 1 Test i ng and Mat chi ng

a. Take t est speci mens of exi st i ng mor t ar and st ucco f r om a sound and i nt act r epr esent at i ve por t i on of t he st r uct ur e, at l ocat i ons [ i ndi cat ed] [ or ] [ by t he Cont r act i ng Of f i cer ' s Repr esent at i ve] and assess i n accor dance wi t h ASTM C1713 and ASTM C1324.

b. Subj ect a par t of t he hi st or i c mor t ar sampl e t o pet r ogr aphi c exami nat i on and di f f er ent i al t her mal anal ysi s, or X- r ay di f f r act i on, or anal yt i cal chemi st r y t o det er mi ne t he bi nder component s.

c. Aggr egat e Anal ysi s

( 1) Separ at e aggr egat e of t he mor t ar sampl e f r om t he bi nder [ by t ak i ng t he cr ushed mor t ar sampl e and ei t her gent l y bl owi ng away t he f i ne bi nder mat er i al , pl aci ng t he cr ushed sampl e i n a cent r i f uge, or chemi cal l y separ at i ng t he aggr egat e f r om t he bi nder ] .

( 2) Ri nse t he separ at ed aggr egat e c l ean wi t h wat er and dr y. [ Exami ne t he aggr egat e wi t h a magni f y i ng gl ass, and r ecor d t he component mat er i al s as t o r ange of mat er i al s, s i zes, col or s, as wel l as t he pr esence of ot her mat er i al s. ]

( 3) Per f or m sand anal ysi s usi ng a s i eve anal ysi s of t he aggr egat e as par t of t he ASTM C1324 pr ocess.

d. Mat ch t he r epl acement mor t ar and st ucco t o t he or i gi nal exi st i ng mat er i al i n col or , t ext ur e and t ool i ng.

2. 2. 2. 2 Repl acement Mor t ar and St ucco

Pr ovi de r epl acement mor t ar and st ucco t hat wi l l :

a. Coexi st wi t h t he ol d i n a sympat het i c, suppor t i ve and, i f necessar y, sacr i f i c i al capaci t y.

b. Have gr eat er vapor per meabi l i t y and be sof t er ( measur ed i n compr essi ve st r engt h) t han t he masonr y uni t s.

( 1) Measur e wat er vapor t r ansmi ssi on i n accor dance wi t h ASTM E96/ E96M.

( 2) Pr epar e ASTM E96/ E96M wat er vapor t r ansmi ssi on speci mens wi t h t hi ckness s i mi l ar t o t hat expect ed i n ser vi ce, or a maxi mum of 13

SECTI ON 04 03 00 Page 22 mm 1/ 2 i nch, whi chever i s t hi nner .

c. Be as vapor per meabl e, and as sof t , or sof t er , ( measur ed i n compr essi ve st r engt h) t han t he exi st i ng hi st or i c mor t ar or st ucco.

2. 2. 2. 3 Bi nder Cont ent

NOTE: Hi st or i c mor…