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

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CONCRETE CURI NG

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 301 ( 2010; ERTA 2015) Speci f i cat i ons f or St r uct ur al Concr et e

ACI 301M ( 2010; ERTA 2015) Met r i c Speci f i cat i ons f or St r uct ur al Concr et e

ACI 308. 1 ( 2011) Speci f i cat i on f or Cur i ng Concr et e

ASTM I NTERNATI ONAL ( ASTM)

ASTM C1602/ C1602M ( 2012) St andar d Speci f i cat i on f or Mi xi ng Wat er Used i n Pr oduct i on of Hydr aul i c Cement Concr et e

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- 03 Pr oduct Dat a

Cur i ng Mat er i al s

SD- 06 Test Repor t s

Test i ng and I nspect i on f or CQC

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

Cur i ng Compound

1. 3 DELI VERY, STORAGE, AND HANDLI NG

St or e mat er i al s i n such a manner as t o avoi d cont ami nat i on and det er i or at i on. Mat er i al s must be capabl e of bei ng accur at el y i dent i f i ed af t er bundl es or cont ai ner s ar e opened.

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PART 2 PRODUCTS

2. 1 CURI NG MATERI ALS

Pr ovi de cur i ng mat er i al s i n accor dance wi t h ACI 301 Sect i ons 5 and ACI 308. 1 Sect i on 2. Submi t pr oduct dat a and manuf act ur er ' s i nst r uct i ons f or concr et e cur i ng compound.

2. 2 WATER

Pr ovi de wat er f or cur i ng t hat i s f r esh, c l ean, pot abl e, and f r ee of i nj ur i ous amount s of oi l , aci d, sal t , or al kal i , except t hat non- pot abl e wat er may be used i f i t meet s t he r equi r ement s of ASTM C1602/ C1602M.

PART 3 EXECUTI ON

3. 1 CURI NG AND PROTECTI ON

Cur e and pr ot ect concr et e i n accor dance wi t h ACI 301 Sect i on 5.

3. 2 TESTI NG AND I NSPECTI ON FOR CQC

Per f or m t he i nspect i on and t est s descr i bed bel ow and, based upon t he r esul t s of t hese i nspect i ons and t est s, t ake t he act i on r equi r ed. Submi t cer t i f i ed copi es of l abor at or y t est r epor t s, i ncl udi ng cur i ng compound pr oposed f or use on t hi s pr oj ect .

3. 2. 1 Moi st Cur i ng I nspect i ons

At l east once each shi f t , and not l ess t han t wi ce per day on bot h wor k and non- wor k days, i nspect al l ar eas subj ect t o moi st cur i ng. Not e and r ecor d t he sur f ace moi st ur e condi t i on.

3. 2. 2 Moi st Cur i ng Cor r ect i ve Act i one

When a dai l y i nspect i on r epor t l i s t s an ar ea of i nadequat e cur i ng, t ake i mmedi at e cor r ect i ve act i on, and ext end t he r equi r ed cur i ng per i od f or t hose ar eas by 1 day.

3. 2. 3 Membr ane Cur i ng I nspect i on

Appl y no cur i ng compound unt i l t he Cont r act or has ver i f i ed t hat t he compound i s pr oper l y mi xed and r eady f or spr ayi ng. At t he end of each oper at i on, est i mat e t he quant i t y of compound used by measur ement of t he cont ai ner and t he ar ea of concr et e sur f ace cover ed, comput e t he r at e of cover age i n squar e f eet / gal l on, and not e whet her or not cover age i s uniform.

3. 2. 4 Membr ane Cur i ng Cor r ect i ve Act i on

When t he cover age r at e of t he cur i ng compound i s l ess t han t hat speci f i ed or when t he cover age i s not uni f or m, spr ay t he ent i r e sur f ace agai n.

3. 2. 5 Sheet Cur i ng I nspect i on

At l east once each shi f t and once per day on non- wor k days, i nspect i on al l ar eas bei ng cur ed usi ng i mper vi ous sheet s. Not e and r ecor d t he condi t i on of t he cover i ng and t he t i ght ness of t he l aps and t apes.

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3. 2. 6 Sheet Cur i ng Cor r ect i ve Act i on

When a dai l y i nspect i on r epor t l i s t s any t ear s, hol es, or l aps or j oi nt s t hat ar e not compl et el y c l osed, pr ompt l y r epai r t he t ear s and hol es or r epl ace t he sheet s, c l ose t he j oi nt s, and ext end t he r equi r ed cur i ng per i od f or t hose ar eas by 1 day.

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