Amendment_0001_Attachment.pdf

Aviation Maintenance Instruction Building Geotechnical Report Fort Eustis, Virginia March 2018 existing/completed structures), lift thickness may need to be reduced to 6-inches to achieve the required compaction. During fill operations, positive surface drainage should be maintained to prevent the accumulation of water. Each lift of fill should be tested with field density tests in order to confirm the degree of compaction is attained.

6.4 PILE CONSTRUCTION

Precast prestressed concrete piles are recommended for this project. The concrete used in these piles should have a minimum compressive strength of 6,000 pounds per square inch at 28-days. Because of the corrosivity of the subsurface soils, the piles should be designed to adequately resist corrosion (see Section 5.6 for details). The piles should also be designed for a minimum allowable capacity of 207 kips axial compression and a bending moment of 42 kip-ft. All piles should conform to the International Building Code.

Piles should be connected to the pile cap with steel reinforcement, and embedded a minimum of 6-inches into the pile cap. The piles should be spaced a minimum of three diameters on center (3.5 feet), and at least 9 inches from the ends of the pile caps.

Preboring to depths of up to 5 feet below the bottom of the pile cap is allowed in order to establish an accurate location and alignment of the pile in the surficial clays. The hole diameter should not be greater than 2/3 the pile width (i.e., no greater than 9 inches).

Prior to driving piles, a wave equation analysis (e.g., WEAP) should be performed for the proposed hammer assembly. The proposed hammer assembly should not exceed a penetration rate of 120 blows per foot. Once an acceptable hammer assembly is determined, test piles should be driven and appropriate load tests completed as discussed in the following section. If changes are made to the hammer assembly, an additional wave equation analysis should be completed for approval. Based on the results of the load tests, we will provide the final required pile size prior to the ordering of production piles.

Each individual pile should be installed by continuous driving with an impact type pile hammer. All piles should be driven in the presence of an experienced engineering technician, who should keep a record of the driving resistance of each pile. Notes should be made of the date of driving, type, size, and the length of the pile, driven depth, pile hammer used, energy rating of hammer, and blows for each foot of driving for the full length of the pile. The technician should also observe pre-driving handling of the piles to assure that they are not damaged. All production piles should be driven to the required elevation using the same methods as the test piles, with the addition of any modifications approved as a result of the test program.

For pile groups, interior piles should be driven first to prevent excessively hard driving conditions. Previously installed piles should be checked for heave and lateral displacement following driving of adjacent piles. The completed vertical piles shall be plumb to within 2%.

Aviation Maintenance Instruction Building Geotechnical Report Fort Eustis, Virginia March 2018 tested for their corrosive potential. Tests revealed that clays and clayey sands below the groundwater table create a corrosive environment. Full results of the corrosivity testing are available in Appendix B.

Concrete piles need to be protected from corrosion due to a high sulfate content.

5.3 ESTIMATED SETTLEMENT

In accordance with UFC 3-220-01, total settlement must not exceed 1 inch, and differential settlements must not result in angular distortions greater than 1/500. For the proposed loads available at the time of this report, the maximum calculated settlement of the pile caps is approximately 0.88 inches. This meets the requirements for total settlement, and differential settlement is also acceptable based on column loadings and spacing.

5.4 GROUND FLOOR SLABS

Slab-on-grades may be supported on the existing subgrade using an assumed modulus of subgrade reaction, k, of 75 pounds per square inch per inch. A minimum of 6 inches of subgrade beneath the slab should be compacted to a minimum of 90% of the modified Proctor maximum dry density. The addition of a 6 inch gravel base course (such as VDOT 57 stone) beneath the slab is recommended to provide additional support and drainage.

In accordance with Section 1805 of the 2015 International Building Code and UFC 3-301- 01, any interior floor slabs should have a minimum 10-mil polyethylene sheet beneath the slab for damp proofing.

5.5 PAVEMENT DESIGN

For all pavement used for roads and parking areas, a 25 year design life is required in accordance with UFC 3-250-01. UFC 3-250-01 should be consulted for the required depth of compaction.

Modified Proctor tests (ASTM D1557) revealed the Stratum I low plasticity clay has an optimum moisture content of approximately 10.5% and a maximum dry density of 126 pounds per cubic foot. Where Stratum I classifies as a high plasticity clay, the optimum moisture content is 13.5% and the maximum dry density is 117 pounds per cubic foot. To serve as a subgrade, this soil should be compacted to a minimum of 90% of the modified Proctor maximum dry density.

California Bearing Ratio (CBR) test results indicate a CBR of 2 should be used for flexible pavement design. Soil modification may be useful to increase this value.

Aircraft Maintenance Instructional Building 793AMIB

RTA SUBMITTAL

(4) Commissioning Plan and Reports

1.4.1 Sustainability Action Plan

Include the following information in the Sustainability Action Plan:

a. Contractor's planned method to achieve each construction related GP requirement.

b. For each designated construction related ISWG Guiding Principles Requirements that is not achieved, provide narrative explaining how mission or activity precludes achieving specific sustainability requirement or goal. Provide analysis of particular requirement and level to which project is able to comply in accordance with UFC 1-200-02, Section 4-2.

c. Name and contact information for: Contractor's POC responsible for ensuring sustainability goals are accomplished and documentation is assembled.

1.4.2 Costs

Contractor is responsible for all costs associated with constructing and demonstrating that project complies with approved ISWG Guiding Principles Requirements.

1.4.3 Calculations

Provide calculations, product data, and certifications required in this section to demonstrate compliance with the ISWG Guiding Principles Requirements.

1.5 SUSTAINABILITY SUBMITTALS

Provide HPSB Checklist and other documentation in the Sustainability e Notebook to indicate compliance with the sustainability requirements of the project.

1.5.1 High Performance Sustainable Building (HPSB) Checklist

Provide construction documentation that provides proof of and supports compliance with the completed HBSP Checklist.

1.5.1.1 HPSB Checklist Submittals

Submit updated HPSB Checklist with each Sustainability eNotebook submittal. Attach final HPSB Checklist to DD1354 Real Property Record Submittal.

1.5.1.2 HPSB Checklist Public Access

Where not included as attachment to this specification section, use the following as HPSB Checklist for respective service branch. Where Internet address appears on two lines, copy full address into Internet browser.

a. Energy & Sustainability Record Card https://www.wbdg.org/FFC/AF/POLICY/AF_Sust_Scoresheet_GP_vFeb2017.xls

SECTION 01 33 29 Page 5

E4BRIJLW

Polygon bronze, internal parts. The particular make, model/design, and size of backflow preventers to be installed must be included in the latest edition of the List of Approved Backflow Prevention Assemblies issued by the FCCCHR List and be accompanied by a Certificate of Full Approval from FCCCHR List. After installation conduct Backflow Preventer Tests and provide test reports verifying that the installation meets the FCCCHR Manual Standards.

PART 3 EXECUTION

3.1 IDENTIFICATION OF EMPLOYEES

The Contractor shall be responsible for furnishing to each employee, and for requiring each employee engaged on the work to display, identification as approved and directed by the Contracting Officer. Prescribed identification shall immediately be delivered to the Contracting Officer for cancellation upon release of any employee. When required, the Contractor shall obtain and provide fingerprints of persons employed on the project. Contractor and subcontractor personnel shall wear identifying markings on hard hats clearly identifying the company for whom the employee works.

3.2 EMPLOYEE PARKING

Contractor employees will park privately owned vehicles in an area designated by the Contracting Officer. This area will be within reasonable walking distance of the construction site.

Contractor employee parking must not interfere with existing and established parking requirements of the government installation.

3.3 TEMPORARY BULLETIN BOARD

Locate the bulletin board at the project site in a conspicuous place easily accessible to all employees, as approved by the Contracting Officer.

3.4 AVAILABILITY AND USE OF UTILITY SERVICES

3.4.1 Temporary Utilities

Provide temporary utilities required for construction. Materials may be new or used, must be adequate for the required usage, not create unsafe conditions, and not violate applicable codes and standards.

3.4.2 Payment for Utility Services

a. The Government will make all reasonably required utilities available to the Contractor from existing outlets and supplies, as specified in the contract. Unless otherwise provided in the contract, the amount of each utility service consumed will be charged to or paid for by the Contractor at prevailing rates charged to the Government or, where the utility is produced by the Government, at reasonable rates determined by the Contracting Officer.

b. Reasonable amounts of the following utilities will be made available to the Contractor at the prevailing rates as published by the installation at the time of execution of the work. For bidding purposes, please contact the Installation Civil Engineer to access information regarding

SECTION 01 50 00 Page 5

SECTI ON 07 19 00

WATER REPELLENTS

05/11

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 ARCHI TECTURAL MANUFACTURERS ASSOCI ATI ON ( AAMA)

AAMA 501. 1 ( 2005) St andar d Test Met hod f or Wat er Penet r at i on of Wi ndows, Cur t ai n Wal l s and Door s Usi ng Dynami c Pr essur e

AMERI CAN ASSOCI ATI ON OF STATE HI GHWAY AND TRANSPORTATI ON OFFI CI ALS

(AASHTO)

AASHTO T 259 ( 2002; R 2012) St andar d Met hod of Test f or Resi st ance of Concr et e t o Chl or i de I on Penetration

AASHTO T 260 ( 1997; R 2016) St andar d Met hod of Test f or Sampl i ng and Test i ng f or Chl or i de I on i n Concr et e and Concr et e Raw Mat er i al s

ASTM I NTERNATI ONAL ( ASTM)

ASTM C140/ C140M ( 2016) St andar d Test Met hods f or Sampl i ng and Test i ng Concr et e Masonr y Uni t s and Rel at ed Uni t s

ASTM C642 ( 2013) Densi t y, Absor pt i on, and Voi ds i n Har dened Concr et e

ASTM C672/ C672M ( 2012) Scal i ng Resi st ance of Concr et e Sur f aces Exposed t o Dei c i ng Chemi cal s

ASTM D1653 ( 2013) Wat er Vapor Tr ansmi ssi on of Or gani c Coat i ng Fi l ms

ASTM D2369 ( 2010; R 2015; E 2015) Vol at i l e Cont ent of Coatings

ASTM D3278 ( 1996; R 2011) Fl ash Poi nt of Li qui ds by Smal l Scal e Cl osed- Cup Appar at us

ASTM E514/ E514M ( 2014a) St andar d Test Met hod f or Wat er Penet r at i on and Leakage Thr ough Masonr y

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 e4ecedgg

ASTM G154 ( 2016) St andar d Pr act i ce f or Oper at i ng Fl uor escent Li ght Appar at us f or UV Exposur e of Nonmet al l i c Mat er i al s

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

29 CFR 1910. 1000 Ai r Cont ami nant s

1. 2 SUBMI TTALS

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

submi t t al s not havi ng a " G" desi gnat i on ar e f or i nf or mat i on onl y. When used, a desi gnat i on f ol l owi ng t he " G" desi gnat i on i dent i f i es t he of f i ce t hat wi l l r evi ew t he submi t t al f or t he Gover nment . 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 Not ebook, i n conf or mance t o Section 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- 03 Pr oduct Dat a

Wat er r epel l ent s

SD- 06 Test Repor t s

Wat er absor pt i on

Moi st ur e vapor t r ansmi ssi on

Wat er Penet r at i on and Leakage

SD- 07 Cer t i f i cat es

Manuf act ur er ' s qual i f i cat i ons

Appl i cat or ' s qual i f i cat i ons

Evi dence of accept abl e var i at i on

Warranty

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

Application i nst r uct i ons

Pr ovi de manuf act ur er ' s i nst r uct i ons i ncl udi ng pr epar at i on, appl i cat i on, r ecommended equi pment t o be used, saf et y measur es, and pr ot ect i on of compl et ed appl i cat i on.

Manufacturer's mat er i al saf et y dat a sheet s

1. 3 QUALI TY ASSURANCE

1. 3. 1 Qual i f i cat i ons

a. Manuf act ur er ' s qual i f i cat i ons: Mi ni mum f i ve year s r ecor d of successf ul i n- ser vi ce exper i ence of wat er r epel l ent t r eat ment s manuf act ur ed f or concr et e, appl i cat i on.

b. Appl i cat or ' s qual i f i cat i ons: Mi ni mum f i ve year s successf ul exper i ence i n pr oj ect s of s i mi l ar scope usi ng speci f i ed or s i mi l ar t r eat ment mat er i al s and manuf act ur er ' s appr oval f or appl i cat i on.

1. 3. 2 Per f or mance Requi r ement s

a. Wat er absor pt i on: ASTM C140/ C140M. Compar i son of t r eat ed and unt r eat ed speci mens.

b. Moi st ur e vapor t r ansmi ssi on: ASTM E96/ E96M. Compar i son of t r eat ed and unt r eat ed speci mens.

c. Wat er penet r at i on and l eakage t hr ough masonr y: ASTM E514/ E514M.

1. 3. 3 Evi dence of Accept abl e Var i at i on

I f a pr oduct pr oposed f or use does not conf or m t o r equi r ement s of t he r ef er enced speci f i cat i on, submi t f or appr oval t o t he Cont r act i ng Of f i cer , evi dence t hat t he pr oposed pr oduct i s ei t her equal t o or bet t er t han t he pr oduct speci f i ed. I ncl ude t he f ol l owi ng:

a. I dent i f i cat i on of t he pr oposed subst i t ut i on;

b. Reason why t he subst i t ut i on i s necessar y;

c. A compar at i ve anal ysi s of t he speci f i ed pr oduct and t he pr oposed subst i t ut i on, i ncl udi ng t abul at i ons of t he composi t i on of pi gment and vehicle ;

d. The di f f er ence bet ween t he speci f i ed pr oduct and t he pr oposed subst i t ut i on; and

e. Ot her i nf or mat i on necessar y f or an accur at e compar i son of t he pr oposed subst i t ut i on and t he speci f i ed pr oduct .

1. 4 SAMPLE TEST PANEL

The appr oved Sampl e Test Panel wi l l ser ve as t he st andar d of qual i t y f or al l ot her wat er r epel l ent coat i ng wor k. Do not pr oceed wi t h appl i cat i on unt i l t he sampl e panel has been appr oved by t he Cont r act i ng Of f i cer .

1. 4. 1 Sampl e Test Panel

Pr i or t o commenci ng wor k, i ncl udi ng bul k pur chase and del i ver y of mat er i al , appl y wat er r epel l ent t r eat ment t o a mi ni mum 4 f eet hi gh by 4 feet l ong concr et e, t est - panel . Pr ovi de a f ul l hei ght expansi on j oi nt at mi d- panel l engt h. Pr epar e and seal j oi nt wi t h mat er i al s appr oved f or pr oj ect use.

1. 4. 1. 1 Test i ng

AAMA 501. 1 Pr ovi de f i el d wat er t est i ng of wat er r epel l ent t r eat ed sur f aces i n t he pr esence of t he Cont r act i ng Of f i cer and t he wat er r epel l ent t r eat ment manuf act ur er ' s r epr esent at i ve.

a. Appl y wat er r epel l ent t o l ef t s i de of mock- up and al l ow t o cur e pr i or t o appl i cat i on of t r eat ment t o r i ght s i de.

b. Twent y days af t er compl et i on of appl i cat i on of t r eat ment , t est mock- up with 5/ 8 i nch gar den hose, wi t h spr ay nozzl e, l ocat ed 10 f eet f r om wal l and ai med upwar d so wat er st r i kes wal l at 45 degr ee downwar d angl e. Af t er wat er has r un cont i nuousl y f or t hr ee hour s obser ve back si de of mock- up f or wat er penet r at i on and l eakage. I f l eakage i s det ect ed make changes as needed and r et est .

c. Coor di nat e t est i ng pr ocedur es and modi f y pr oj ect t r eat ment appl i cat i on as r equi r ed t o pass mock- up t est s f or wat er penet r at i on and l eakage resistance.

1. 4. 1. 2 Appr oval

Pr oceed wi t h wat er r epel l ent t r eat ment wor k onl y af t er compl et i on of f i el d t est appl i cat i on and appr oval of mock- up and t est s by t he Cont r act i ng Officer.

1. 5 REGULATORY REQUI REMENTS

1. 5. 1 Envi r onment al Pr ot ect i on

I n addi t i on t o r equi r ement s speci f i ed i n Sect i on 01 57 19 TEMPORARY ENVI RONMENTAL CONTROLS f or envi r onment al pr ot ect i on, pr ovi de coat i ng mat er i al s t hat conf or m t o t he r est r i ct i ons of t he Local Ai r Pol l ut i on Cont r ol j ur i sdi ct i on . Not i f y t he Cont r act i ng Of f i cer of any wat er r epel l ent coat i ng speci f i ed her ei n whi ch f ai l s t o conf or m t o t he l ocal Ai r Qual i t y Management Di st r i ct Rul es at t he l ocat i on of t he Pr oj ect . I n l ocal i t i es wher e t he speci f i ed coat i ng i s pr ohi bi t ed, t he Cont r act i ng Of f i cer may di r ect t he subst i t ut i on of an accept abl e coat i ng.

1. 6 DELI VERY, STORAGE, AND HANDLI NG

Del i ver mat er i al s i n or i gi nal seal ed cont ai ner s, c l ear l y mar ked wi t h t he manuf act ur er ' s name, br and name, t ype of mat er i al , bat ch number , per cent sol i ds by wei ght and vol ume, and dat e of manuf act ur er . St or e mat er i al s of f t he gr ound, i n a dr y ar ea wher e t he t emper at ur e wi l l be not l ess 50 degr ees F nor mor e t han 85 degr ees F.

1. 7 SAFETY METHODS

Appl y coat i ng mat er i al s usi ng saf et y met hods and equi pment i n accor dance wi t h Sect i on 01 57 19 TEMPORARY ENVI RONMENTAL CONTROLS, and t he f ol l owi ng:

1. 7. 1 Toxi c Mat er i al s

To pr ot ect per sonnel f r om over exposur e t o t oxi c mat er i al s, conf or m t o t he most st r i ngent gui dance of :

a. The coat i ng manuf act ur er when usi ng sol vent s or ot her chemi cal s. Use i mper meabl e gl oves, chemi cal goggl es or f ace shi el d, and ot her r ecommended pr ot ect i ve c l ot hi ng and equi pment t o avoi d exposur e of ski n, eyes, and r espi r at or y syst em. Conduct wor k i n a manner t o mi ni mi ze exposur e of bui l di ng occupant s and t he gener al publ i c.

b. 29 CFR 1910. 1000.

c. Thr eshol d Li mi t Val ues ( R) of t he Amer i can Conf er ence of Gover nment al I ndust r i al Hygi eni st s.

d. Manuf act ur er ' s mat er i al saf et y dat a sheet s.

1. 8 ENVI RONMENTAL CONDI TI ONS

1. 8. 1 Weat her and Subst r at e Condi t i ons

Do not pr oceed wi t h appl i cat i on of wat er r epel l ent s under any of t he f ol l owi ng condi t i ons, except wi t h wr i t t en r ecommendat i ons of manuf act ur er .

a. Ambi ent t emper at ur e i s l ess t han 40 degr ees F.

b. Subst r at e f aces have cur ed l ess t han one mont h.

c. Rai n or t emper at ur e bel ow 40 degr ees F ar e pr edi ct ed f or a per i od of 24 hour s bef or e or af t er t r eat ment .

d. Ear l i er t han t hr ee days af t er sur f aces ar e wet .

e. Subst r at e i s f r ozen or sur f ace t emper at ur e i s l ess t han 40 degr ees F and f al l i ng.

1. 8. 2 Moi st ur e Condi t i on

Det er mi ne moi st ur e cont ent of subst r at e meet s manuf act ur er ' s r equi r ement s pr i or t o appl i cat i on of wat er r epel l ent mat er i al .

1. 9 SEQUENCI NG AND SCHEDULI NG

1. 9. 1 Concr et e Sur f aces

Do not st ar t wat er r epel l ent coat i ng unt i l al l pat chi ng, poi nt i ng and cl eani ng oper at i ons have been compl et ed and concr et e has cur ed a mi ni mum of 30 days under nor mal weat her condi t i ons.

1. 9. 2 Seal ant s

Do not appl y wat er r epel l ent s unt i l t he seal ant s f or j oi nt s adj acent t o sur f aces r ecei v i ng wat er r epel l ent t r eat ment have been i nst al l ed and cur ed.

a. Wat er r epel l ent wor k may pr ecede seal ant appl i cat i on onl y i f seal ant adhesi on and compat i bi l i t y have been t est ed and ver i f i ed usi ng subst r at e, wat er r epel l ent , and seal ant mat er i al s i dent i cal t o t hose used i n t he wor k.

b. Pr ovi de manuf act ur er s ' t est r esul t s of compat i bi l i t y .

1. 10 I NSPECTI ONS

Not i f y t he manuf act ur er ' s r epr esent at i ve a mi ni mum of 72 hour s pr i or t o schedul ed appl i cat i on of wat er r epel l ent s f or f i el d i nspect i on. I nspect sur f aces and obt ai n appr oval i n wr i t i ng f r om t he manuf act ur er ' s r epr esent at i ve pr i or t o any appl i cat i on of any wat er r epel l ent coat i ng.

1. 11 SURFACES TO BE COATED

Coat al l ext er i or concr et e, sur f aces. Thi s i ncl udes back f aces of par apet s, t op of wal l s, edges and r et ur ns adj acent t o wi ndows and door f r ames and f r ee st andi ng wal l s.

1. 12 WARRANTY

Pr ovi de a war r ant y, i ssued j oi nt l y by t he manuf act ur er and t he appl i cat or of t he wat er r epel l ent t r eat ment agai nst moi st ur e penet r at i on t hr ough t he t r eat ed st r uct ur al l y sound sur f ace f or a per i od of f i ve year s. War r ant y t o pr ovi de t he mat er i al , l abor , and equi pment necessar y t o r emedy t he pr obl em. At t he sat i sf act or y compl et i on of t he wor k, compl et e t he war r ant y s i gn, not ar i ze, and submi t t o t he Cont r act i ng Of f i cer .

PART 2 PRODUCTS

2. 1 MATERI ALS

Wat er r epel l ent sol ut i on shal l be a c l ear , non- yel l owi ng, deep- penet r at i ng, VOC compl i ant sol ut i on. Mat er i al shal l not st ai n or di scol or and shal l pr oduce a mechani cal and chemi cal i nt er l ocki ng bond wi t h t he subst r at e t o t he dept h of t he penet r at i on.

2. 2 WATER REPELLENTS

2. 2. 1 Si l ane, 40 Per cent Sol i ds

Penet r at i ng wat er r epel l ent . A monomer i c compound cont ai ni ng appr oxi mat el y 40 per cent al kyl t r i al koxysi l anes wi t h al cohol , mi ner al spi r i t s, or wat er .

a. Composi t i on: Modi f i ed al kyl al koxysi l ane.

b. Act i ve al kyl al koxysi l ane cont ent : ASTM D2369 40 per cent by wei ght , pl us or mi nus 1. 5 per cent .

c. Appear ance: Whi t e, mi l ky l i qui d.

d. Aver age dept h of penet r at i on: Up t o 3/ 8 i nch dependi ng on subst r at e.

e. VOC cont ent : Less t han 350 gr ams per l i t er .

f . Fl ash poi nt , ASTM D3278.

g. Speci f i c gr avi t y, at 78 degr ees F: 0. 94 t o 0. 97.

h. Densi t y: 7. 8 t o 8. 1 pounds per gal l on.

2. 2. 2 VOC- Compl yi ng Wat er Repel l ent s

Pr oduct s cer t i f i ed by t he manuf act ur er t hat t hey compl y wi t h l ocal r egul at i ons cont r ol l i ng use of vol at i l e or gani c compounds ( VOC' s) .

2. 3 PERFORMANCE CRI TERI A

2. 3. 1 Si l ane, 40 Per cent Sol i ds

a. Aver age dept h of penet r at i on: 3/ 8 i nches dependi ng on subst r at e

b. Resi st ance t o chl or i de i on penet r at i on, AASHTO T 259 and AASHTO T 260.

c. Wat er absor pt i on t est , ASTM E514/ E514M: 0. 42 per cent per 48 hour s;

1. 2 per cent per 50 days.

d. Moi st ur e vapor t r ansmi ssi on: ASTM D1653, 28. 33 per ms or 51. 61 per cent maxi mum compar ed t o unt r eat ed sur f aces.

e. Scal i ng r esi st ance, ASTM C672/ C672M, non- ai r - ent r ai ned concr et e: Zer o r at i ng, no scal i ng, 100 cycl es t r eat ed concr et e.

f . Resi st ance t o accel er at ed weat her i ng, ASTM G154. Test i ng 2, 500 hour s: No l oss i n r epel l ency.

g. Dr yi ng t i me under nor mal condi t i ons: Four hour s per 75 degr ees F.

PART 3 EXECUTI ON

3. 1 EXAMI NATI ON

Exami ne concr et e, , or sur f aces t o be t r eat ed t o ensur e t hat :

a. Al l v i s i bl e cr acks, voi ds or hol es have been r epai r ed.

b. Concr et e sur f aces ar e f r ee of f or m r el ease agent s, cur i ng compounds and ot her compounds t hat woul d pr event f ul l penet r at i on of t he wat er r epel l ent mat er i al .

Do not st ar t wat er r epel l ent t r eat ment wor k unt i l al l def i c i enci es have been cor r ect ed, exami ned and f ound accept abl e t o t he Cont r act i ng Of f i cer and t he wat er r epel l ent t r eat ment manuf act ur er . Do not appl y t r eat ment t o damp, di r t y, dust y or ot her wi se unsui t abl e sur f aces. Compl y wi t h t he manuf act ur er ' s r ecommendat i ons f or sui t abi l i t y of sur f ace.

3. 2 PREPARATI ON

3. 2. 1 Sur f ace Pr epar at i on

Pr epar e subst r at es i n accor dance wi t h wat er r epel l ent t r eat ment manuf act ur er ' s r ecommendat i on. Cl ean sur f aces of dust , di r t , ef f l or escence, al kal i ne, and f or ei gn mat t er det r i ment al t o pr oper appl i cat i on of wat er r epel l ent t r eat ment .

3. 2. 2 Pr ot ect i on

Pr ovi de maski ng or pr ot ect i ve cover i ng f or mat er i al s whi ch coul d be damaged by wat er r epel l ent t r eat ment .

a. Pr ot ect gl ass, gl azed pr oduct s, and pr ef i ni shed pr oduct s f r om cont act wi t h wat er r epel l ent t r eat ment .

3. 2. 3 Compat i bi l i t y

a. Conf i r m t r eat ment compat i bi l i t y wi t h each t ype of j oi nt seal er wi t hi n or adj acent t o sur f aces r ecei v i ng wat er r epel l ent t r eat ment i n accor dance wi t h manuf act ur er ' s r ecommendat i ons.

3. 3 MI XI NG

Mi x wat er r epel l ent mat er i al t hor oughl y i n accor dance wi t h t he manuf act ur er ' s r ecommendat i ons. Mi x, i n quant i t i es r equi r ed f or t hat days wor k, al l cont ai ner s pr i or t o appl i cat i on. Mi x each cont ai ner t he same l engt h of t i me.

3. 4 APPLICATION

I n st r i ct accor dance wi t h t he manuf act ur er s wr i t t en r equi r ement s. Do not st ar t appl i cat i on wi t hout t he manuf act ur er ' s r epr esent at i ve bei ng pr esent or hi s wr i t t en accept ance of t he sur f ace t o be t r eat ed.

3. 4. 1 Wat er Repel l ent Tr eat ment

3. 4. 1. 1 Spr ay Appl i cat i on

Spr ay appl y wat er r epel l ent mat er i al t o ext er i or concr et e, sur f aces usi ng l ow- pr essur e ai r l ess spr ay equi pment i n st r i ct accor dance wi t h manuf act ur er ' s pr i nt ed appl i cat i on, i nst r uct i ons, and pr ecaut i ons.

Mai nt ai n copi es at t he j ob s i t e. Appl y f l ood coat i n an over l appi ng pat t er n al l owi ng appr oxi mat el y 8 t o 10 i nch r undown on t he ver t i cal sur f ace. Mai nt ai n a wet edge at al l over l aps, bot h ver t i cal and hor i zont al . Hol d gun maxi mum 18 i nches f r om wal l .

3. 4. 1. 2 Br ush or Rol l er Appl i cat i on

Br ush or r ol l er appl y wat er r epel l ent mat er i al onl y at l ocat i ons wher e over spr ay woul d af f ect adj acent mat er i al s and wher e not pr act i cal f or spr ay appl i cat i ons.

3. 4. 1. 3 Rat e of Appl i cat i on

Appl y mat er i al s t o ext er i or sur f aces at t he cover ages r ecommended by t he manuf act ur er and as det er mi ned f r om sampl e panel t est . I ncr ease or decr ease appl i cat i on r at es dependi ng upon t he sur f ace t ext ur e and por osi t y of t he subst r at e so as t o achi eve even appear ance and t ot al wat er repellency.

3. 4. 1. 4 Number of Coat s

The sampl e panel t est shal l det er mi ne t he number of coat s r equi r ed t o achi eve f ul l cover age and pr ot ect i on.

3. 4. 1. 5 Appear ance

I f unevenness i n appear ance, l i nes of wor k t er mi nat i on or scaf f ol d l i nes exi st , or det ect abl e changes f r om t he appr oved sampl e panel occur , t he Cont r act i ng Of f i cer may r equi r e addi t i onal t r eat ment at no addi t i onal cost t o t he Gover nment . Appl y any r equi r ed addi t i onal t r eat ment t o a nat ur al br eak of f poi nt .

3. 5 CLEANI NG

Cl ean al l r uns, dr i ps, and over spr ay f r om adj acent sur f aces whi l e t he wat er r epel l ent t r eat ment i s st i l l wet i n a manner r ecommended by t he manufacturer.

3. 6 FI ELD QUALI TY CONTROL

Do not r emove dr ums cont ai ni ng wat er r epel l ent mat er i al f r om t he j ob s i t e unt i l compl et i on of al l wat er r epel l ent t r eat ment and unt i l so aut hor i zed by t he Cont r act i ng Of f i cer .

3. 6. 1 Fi el d Test i ng

AAMA 501. 1. At a t i me not l ess t han t went y days af t er compl et i on of t he wat er r epel l ent coat i ng appl i cat i on, subj ect a r epr esent at i ve wal l ar ea of t he bui l di ng t o t he Navy Hose St r eam Fi el d Test s i mi l ar t o AAMA 501. 1 hose t est t o s i mul at ed r ai nf al l f or a per i od of t hr ee hour s. Use a mi ni mum 5/ 8 i nch di amet er hose and a f i xed l awn spr i nkl er spr ay head whi ch wi l l di r ect a f ul l f l ow of wat er agai nst t he wal l . Pl ace t he spr i nkl er head so t hat t he wat er wi l l s t r i ke t he wal l downwar d at a 45 degr ee angl e t o t he wal l .

I f t he i nsi de of t he wal l shows any t r ace of moi st ur e dur i ng or f ol l owi ng t he t est , appl y anot her coat of wat er r epel l ent , at t he manuf act ur er ' s r ecommended cover age r at e t o t he ent i r e bui l di ng. Repeat t est i ng and r e- coat i ng pr ocess unt i l no moi st ur e shows on t he i nsi de wal l f ace.

Accompl i sh any r equi r ed wor k r et est i ng and r e- coat i ng at no addi t i onal cost t o t he Gover nment .

3. 6. 2 Si t e I nspect i on

I nspect t r eat ment i n pr ogr ess by manuf act ur er ' s r epr esent at i ve t o ver i f y compl i ance wi t h manuf act ur er i nst r uct i ons and r ecommendat i ons.

- - End of Sect i on - -

1 Core 1C (TO SUIT) 626 BE 1 Wall Stop-Convex (L02101-Cast) 400 US26D RO 3 Silencer (L03011) 608 RO

Set: 22.0 Doors: 106B, 107B, 108B, 111B, 112B, 120B, 121B, 125B, 126B, 127B

3 Hinge (A8112) TA2714 US26D MK 1 Classroom Lock (F05) AUR 8808FL Temp Core 626 YA 1 Core 1C (TO SUIT) 626 BE 1 Surface OH Stop (C02541) 9-X36 630 RF 3 Silencer (L03011) 608 RO

Set: 23.0 Doors: 143, 146

3 TA2714Hinge (A8112) US26D MK 1 Privacy Lock w/ Indicator (F02) AUR 8802FL IND 626 YA 1 Kick Plate (J102) K1050 10" BEV CSK RO 1 Mop Plate (J103) K1050 6" BEV CSK

US32D

US32D RO

Wall Stop-Convex (L02101-Cast) 400 US26D RO

3 Silencer (L03011) 608 RO

Set: 24.0 Doors: 132, 132A

3 Hinge (A8112) TA2714 US26D MK 1 Surface Bolt 630-8 US26D RO 1 Storeroom/Closet Lock (F07) AUR 8805FL Temp Core 626 YA 1 Core 1C (TO SUIT) 626 BE 1 Surface Closer (C02021) 3521 689 YA 1 Kick Plate (J102) K1050 10" BEV CSK US32D RO 4 Silencer (L03011) 608 RO

Set: 25.0 Doors: 109, 110, 123, 124, 130, 131, 133, 134, 209, 210, 228, 230

3 Hinge (A8111) T4A3786 US26D MK 1 Mortise Deadlock (F29) 8813ST Temp Core 626 YA 1 Core 1C (TO SUIT) 626 BE 1 Pull Plate (J405) 111x70C US32D RO 1 Push Plate (J301) 70F US32D RO 1 Surface Closer (PT 4C- C02011 / C02021) 3501 689 YA 1 Kick Plate (J102) K1050 10" BEV CSK US32D RO 1 Mop Plate (J103) K1050 6" BEV CSK US32D RO 1 Wall Stop-Convex (L02101-Cast) 400 US26D RO 3 Silencer (L03011) 608 RO

Set: 26.0 Doors: 105, 142

2 Continuous Hinge (A51031B) MCK-25HD - DOOR HEIGHT CL MK 2 Flush Bolt (L04251) 555 US26D RO 1 Dust Proof Strike (L04021) 570 US26D RO 1 Storeroom/Closet Lock (F07) AUR 8805FL Temp Core 626 YA 1 Core 1C (TO SUIT) 626 BE 1 Surface OH Stop (C02541) 9-X36 630 RF 1 Surface Closer (C02021) 3521 689 YA 2 Kick Plate (J102) K1050 10" BEV CSK US32D RO

SECTION 08 71 00 Page 16

SECTION 09 72 00

HIGH IMPACT RESISTANT WALL SOLUTION AND CORNER GUARDS

11/12

PART 1 GENERAL

1.1 REFERENCES

The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.

GYPSUM ASSOCIATION (GA)

GA 214 (2010) Recommended Levels of Gypsum Board Finish

1.2 SUSTAINABILITY REPORTING

Materials in this technical specification may contribute towards contract compliance with sustainability requirements. See Section 01 33 29 SUSTAINABILITY REPORTING for project and requirements.

1.3 SUBMITTALS

Government approval is required for submittals with a "G" designation;

submittals not having a "G" designation are for information only. When used, a designation following the "G" designation identifies the office that will review the submittal for the Government. Submit the following :

SD-03 Product Data

High Impact Resistant Wall Solutions and Accessories; G, NAO

Primer and Adhesive

SD-04 Samples

High Impact Resistant Wall Solutions and Accessories; G, NAO

SD-07 Certificates

High Impact Resistant Wall Solutions and Accessories

SD-08 Manufacturer's Instructions

High Impact Resistant Wall Solutions and Accessories; G

SD-10 Operation and Maintenance Data

High Impact Resistant Wall Solutions and Accessories; G

SD-11 Closeout Submittals

SECTION 09 72 00 Page 1

1.4 DELIVERY, STORAGE, AND HANDLING

Deliver the material to the site in manufacturer's original wrappings and packages and clearly label with the manufacturer's name, brand name, pattern and color name and number, dye lot number, size, and other related information. Store in a safe, dry, clean, and well-ventilated area at temperatures not less than 50 degrees F and within a relative humidity range of 30 to 60 percent. Store high impact resistant wall solution material in a flat position and protected from damage, soiling, and moisture. Do not open containers until needed for installation, unless verification inspection is required.

1.5 ENVIRONMENTAL REQUIREMENTS

Comply with high impact resistant wall solution manufacturer's printed installation instructions for minimum temperature of area to receive requirements for conditioning adhesive and high impact resistant wall solution. Provide a minimum 50 degrees F area temperature, 72 hours prior to installation, during installation, and until the adhesive dries.

Observe ventilation and safety procedures.

1.6 WARRANTY

Provide manufacturer's standard performance guarantees or warranties that extend beyond a one-year period.

1.7 EXTRA MATERIALS

Provide one linear foot of full-width high impact resistant wall solution of each pattern and color for each 100 linear feet of high impact resistant wall solution installed. Provide the same manufacturer, type, pattern, color, and lot number of extra stock as the installed high impact resistant wall solution. Provide full rolls, packed for storage and marked with content, manufacturer's name, pattern and color name and number and dye lot number. Leave extra stock at the site at a location as directed by the Contracting Officer.

PART 2 PRODUCTS

2.1 HIGH IMPACT RESISTANT WALL SOLUTIONS AND ACCESSORIES

Provide wall coverings and accessories material designed specifically for the specified use. Furnish a high impact resistant wall solution product with the same technical specifications as the basis of design, Wolf Gordon, Rampart Impact Resistant Wall Solutions.

2.1.1 Product Data

a. High Impact Resistant Wall Solution: Submit manufacturer's discriptive data, documenting physical characteristics, flame resistance, mildew and germicidal characteristics for high impact resistant wall solution.

b. Accessories: Submit manufacturer's descriptive data for corner guard .

c. Primer and Adhesive: Submit manufacturer's descriptive data, documenting physical characteristics, mildew and germicidal characteristics.

SECTION 09 72 00 Page 2

2.1.2 Samples

2.1.2.1 High Impact Resistant Wall Solution

Submit three samples of each indicated type, pattern, and color of high impact resistant wall solution. Provide minimum 5 by 7 inch samples of high impact resistant wall solution to show pattern repeat of sufficient size.

2.1.2.2 Accessories

Submit three samples of each indicated type corner guard; provide samples a minimum of 3 inch long.

2.1.2.3 High Impact Resistant Wall Solution

Provide three samples, 3 yards long by the width specified, of each type to be installed in the work, as required to illustrate material weight, color, shade, decorative design, and embossing when required.

2.1.3 Certificates

Submit manufacturer's statement attesting that the product furnished meets or exceeds specification requirements. Date the statement after the award of the contract, state Contractor's name and address, name the project and location, and list the requirements being certified. Include these certificates:

(1) Certified laboratory test reports of the physical properties for high impact resistant wall solution, as specified.

(2) Certificates of Compliance for UL fire hazard classification listing, as specified.

(3) Certificates of Compliance for contact adhesive.

2.1.4 Manufacturer's Instructions

Submit preprinted installation instructions for high impact resistant wall solution and accessories, adhesives and primers. Include substrate preparation and material application in the instructions.

2.1.5 Operations and Maintenance Data

a. Submit Data Package 1 in accordance with Section 01 78 23 OPERATION AND

MAINTENANCE DATA.

b. Submit three copies of manufacturer's maintenance instructions for each type of high impact resistant wall solution and accessory describing recommended type of cleaning equipment and materials, spotting and cleaning methods, and cleaning cycles. Instructions to also include preventative maintenance, recommended cleaning materials and precautions in the use of cleaning materials that may be detrimental to the high impact resistant wall solution surface and accessories when improperly applied.

2.2 HIGH IMPACT RESISTANT WALL SOLUTIONS

Provide a vinyl high impact resistant wall solution. Provide impact

SECTION 09 72 00 Page 3 resistant extra heavy duty wall protection covering with a minimum total weight of 35 ounces/linear yard. Provide width of 52 inch . Impact resistant wall solution shall meet ASTM D4977 level 3 for surface abrasion, ASTM D5420 Level 2 for Surface Indentation, ASTM E695 Level 2 for soft body impact, ASTM C1629 Level one for hard body impact. Fire rating ASTM E84, Class A. Wall solution shall be finished with a mfr. provideed clear coating for stain and abrasion resistance. Refer to finish schedule for locations and basis of design products.

2.3 CORNER GUARDS

Stainless steel corner guards must be fabricated of 16 gauge thick material conforming to ASTM A240/A240M, type 302 or 304. Provide stainless steel base material that contains a minimum of 60 percent recycled content.

Provide data identifying percentage of recycled content for steel component of corner guards. Corner guards must extend from floor to ceiling. Corner guard must be formed to dimensions shown. Only install as directed in drawings at case openings.

2.4 PRIMER AND ADHESIVE

Provide a type primer and adhesive recommended by the high impact resistant wall solution manufacturer, containing a non-mercury based mildewcide, and complying with local indoor air quality standards. When substrate color variations show through high impact resistant wall solution, provide a white pigmented primer as recommended by the high impact resistant wall solution manufacturer used to conceal the variations. Provide a recommended type adhesive to install corner guards by the manufacturer of the corner guards.

2.5 COLOR, TEXTURE, AND PATTERN

Provide color, texture and pattern in accordance with the drawings .

2.5.1 Stainless Steel Finish

Finish for stainless steel must be in accordance with ASTM A240/A240M, Type 302 or 304, finish number 4.

PART 3 EXECUTION

3.1 EXAMINATION

Inspect all areas and conditions under which high impact resistant wall solutions are to be installed. Notify the Contracting Officer, in writing, of any conditions detrimental to the proper and timely completion of the installation. Work will proceed only when conditions have been corrected and accepted by the installer.

3.2 SURFACE PREPARATION

Do not apply high impact resistant wall solution to surfaces that are rough, that contain stains which will bleed through the high impact resistant wall solution, or that are otherwise unsuitable for proper installation. Fill cracks and holes; sand rough spots smooth. Finish walls to receive presentation dry erase high impact resistant wall solution to a Level 4 gypsum wallboard finish in accordance with GA 214 unless Level 5 is recommended by the high impact resistant wall solution manufacturer.

Thoroughly dry surfaces at least 30 days prior to installation of high

SECTION 09 72 00 Page 4

E4ECEMCJ

Polygon

E4ECEMCJ

impact resistant wall solution. Provide interior surfaces of new and existing gypsum wallboard with a high impact resistant wall solution primer in accordance with the manufacturer's printed instructions. As required, use white primer when substrate color variations are visible through thin or light color high impact resistant wall solution. Seal interior surfaces of exterior masonry walls to prevent moisture penetration, then prime with a high impact resistant wall solution primer in accordance with the manufacturer's printed instructions. Provide masonry walls with flush joints. Test moisture content of plaster, concrete, and masonry with an electric moisture meter of a maximum five percent reading. Apply a thin coat of joint compound or cement plaster, as recommended by the high impact resistant wall solution manufacturer, to the concrete and masonry walls as a substrate preparation. Allow primer to completely dry before adhesive application.

3.3 INSTALLATION

3.3.1 High Impact Resistant Wall Solution

Install high impact resistant wall solution in accordance with the manufacturer's printed installation instructions. Remove glue and adhesive spillage from high impact resistant wall solution face and seams with a remover recommended by the manufacturer.

3.3.2 Corner Guards

Install corner guards in accordance with the manufacturer's printed instructions. Run corner guards from top of base to ceilingin a continuous length as directed on drawings only as case openings..

3.3.2.1 Stainless Steel Guards

Where corner guards are installed on gypsum board, clean surfaces and anchor guards with a neoprene solvent-type contact adhesive specifically manufactured for use on gypsum board construction. Remove excess adhesive from the guard edges and allow to cure undisturbed for 24 hours.

3.4 CLEAN-UP

Upon completion of the work, clean high impact resistant wall solution free of dirt, soiling, stain, or residual film. Remove and clean surplus materials, rubbish, and debris resulting from the high impact resistant wall solution installation.

-- End of Section --

SECTION 09 72 00 Page 5

E4ECEMCJ

a. Name of individual and proposed position for this work.

b. Information about each previous assignment including:

Position or responsibility

Employer (if other than the Contractor)

Name of facility owner

Mailing address, telephone number, and telex number (if non-US) of facility owner

Name of individual in facility owner's organization who can be contacted as a reference

Location, size and description of structure

Dates work was carried out

Description of work carried out on structure

1.4 QUALITY ASSURANCE

1.4.1 Field Samples and Tests

The Contracting Officer may choose up to two coatings that have been delivered to the site to be tested at no cost to the Government. Take samples of each chosen product as specified in the paragraph "Sampling Procedures." Test each chosen product as specified in the paragraph "Testing Procedure." Products which do not conform, shall be removed from the job site and replaced with new products that conform to the referenced specification. Testing of replacement products that failed initial testing shall be at no cost to the Government.

1.4.1.1 Sampling Procedure

The Contracting Officer will select paint at random from the products that have been delivered to the job site for sample testing. The Contractor shall provide one quart samples of the selected paint materials. The samples shall be taken in the presence of the Contracting Officer, and labeled, identifying each sample. Provide labels in accordance with the paragraph "Packaging, Labeling, and Storage" of this specification.

1.4.1.2 Testing Procedure

Provide Batch Quality Conformance Testing for specified products, as defined by and performed by MPI. As an alternative to Batch Quality Conformance Testing, the Contractor may provide Qualification Testing for specified products above to the appropriate MPI product specification, using the third-party laboratory approved under the paragraph "Qualification Testing" laboratory for coatings. The qualification testing lab report shall include the backup data and summary of the test results.

The summary shall list all of the reference specification requirements and the result of each test. The summary shall clearly indicate whether the tested paint meets each test requirement. Note that Qualification Testing may take 4 to 6 weeks to perform, due to the extent of testing required.

SECTION 09 90 00 Page 5

Subsection 1.3.2

SSPC QP1

Certification was removed

1.5.3 Shunt Trip Disconnect

Provide flow switches specified in paragraph FIRE SPRINKLERS to comply with ASME A17.1/CSA B44 and NFPA 72 for shunt trip of the main line power supply. For each elevator, provide control wiring connecting the flow switch to a shunt trip equipped circuit breaker located in the elevator machine room. Upon flow of water, flow switch will instantaneously cause opening of the shunt-trip circuit breaker and remove power from the elevator. Flow switch must also send a signal to fire alarm control panel to indicate water flow condition.

PART 2 PRODUCTS

2.1 ELEVATOR DESCRIPTION

Provide elevator system that complies with ASME A17.1/CSA B44 in its entirety, ASME A17.2 in its entirety, and additional requirements specified herein. Provide elevator system that meets or exceeds the NEII-1 Ride Quality Performance Standards Matrix (RQPSM). Comply with the RQPSM "Intermediate Performance" criteria.

Provide and install elevators in accordance with 36 CFR 1191 - ABAAS, ICC IBC, IEEE C62.41, NFPA 70 and NFPA 101 requirements.

2.1.1 Elevator Design Parameters

2.1.1.1 Elevator No.1 - Non-EMSA Elevator

a. Type: In-Ground Direct Plunger

b. Rated load: 3500 lb.

c. Rated Speed: 150 fpm

d. Car Door Type: Single speed side slide.

e. Car Door Opening Width: 3 ft.-6 in.

2.1.2 Cab Enclosure and Hoistway Entrance Assemblies

Provide finishes as listed below:

a. Floor; carpet as indicated on the drawings.

b. Walls; brushed stainless steel. Reflections must not be visible in the metal. Provide each cab wall with equally spaced and equally sized wall panels of plastic laminated as indicated on the finish schedule.

All wall panel fasteners must be concealed.

Wall trim; brushed stainless steel.

Accessories; Provide hand rails on full length of back wall and side walls of elevator cab.

c. Car doors, car door returns, and wall reveals; brushed stainless steel.

d. Ceilings; anodized aluminum.

SECTION 14 24 23 Page 7

100% Corrected Final

2.1.3.1 Alkali-Silica Reactivity (ASR)

Fine and coarse aggregates to be used in all concrete shall be evaluated and tested by the Contractor for alkali-aggregate activity.

The fine and coarse aggregates shall be evaluated separately, using ASTM C1260. Test results of the individual aggregates shall have a measured expansion equal to or less than 0.08 percent at 16 days after casting. Should the test data indicate an expansion of greater than 0.08 percent, reject the aggregate(s) and submit new aggregate sources for retesting. Submit the results of testing to the Contracting Officer for evaluation and acceptance.

2.1.4 Admixtures

Chemical admixtures shall conform to ASTM C494/C494M, Type A .

Air-entraining admixture shall conform to ASTM C260/C260M. Do not use admixtures containing chlorides.

2.1.5 Prestressing Steel

Use seven-wire stress-relieved or low-relaxation strand conforming to ASTM A416/A416M, Grade 270. Use prestressing steel free of grease, oil, wax, paint, soil, dirt, and loose rust. Do not use prestressing strands or wire having kinks, bends, or other defects.

2.1.6 Reinforcing Steel

ASTM A615/A615M, Grade 60 with a minimum cover of 2 inches.

2.1.7 Ties and Spirals

Steel, ASTM A1064/A1064M for spirals and ASTM A615/A615M for ties.

2.1.8 Anchorages and End Fittings

ACI 318.

2.1.9 Grout

Provide cement grout for prestressed piles using materials conforming to requirements stipulated herein for concrete mixes. Use admixtures, if required, known to have no injurious effects on steel or concrete. Do not use calcium chloride.

2.2 CONCRETE MIX DESIGN

ACI 211.1 or ACI 318, Chapter 4. Concrete shall have a minimum compressive strength of 6000 psi at 28 days. Concrete shall be air entrained with a minimum of 4.5 percent and a maximum of 7.5 percent. Concrete mix design must resist the corrosive nature of the soil as presented in the Geotechnical Report.

SECTION 31 62 13.20 Page 8

100% Corrected Final

2.3 FABRICATION

2.3.1 Strength Requirements

Piles must have a minimum allowable capacity of 207 kips axial compression and a minimum bending moment capacity of 42 kip-feet

2.3.2 Formwork

Formwork and dimensional tolerances shall be in accordance with PCI MNL-116, and as specified herein. Provide forms of metal, braced and stiffened against deformation, accurately constructed, watertight, and supported on unyielding casting beds. Forms shall permit movement of pile without damage during release of prestressing force. Form precast dowel holes with galvanized flexible metal conduit.

2.3.3 Pretensioning

Pretensioning shall be performed in accordance with PCI MNL-116, and as specified herein. Use gage calibrated within last 6 months by a laboratory approved by Contracting Officer. Provide means for measuring elongation of steel to nearest 1/8 inch. Give tensioning steel a uniform prestress prior to being brought to design prestress. Induce same initial prestress in each unit when several units of prestressing steel in a pile are stretched simultaneously.

2.3.4 Casting

2.3.4.1 Conveying

Convey concrete to formwork in accordance with PCI MNL-116, and as specified herein. Clean conveying equipment thoroughly before each run.

During placing, make any free…