ML19340E213

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Spec Masonry,SP-5714.
ML19340E213
Person / Time
Site: Three Mile Island Constellation icon.png
Issue date: 08/08/1969
From:
GILBERT/COMMONWEALTH, INC. (FORMERLY GILBERT ASSOCIAT
To:
Shared Package
ML19340E202 List:
References
IEB-80-11, PROC-690808, NUDOCS 8101060657
Download: ML19340E213 (15)
v • d • e


Text

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$ SPECIFICATION i.

MASCHRY f

TEREI MILE ISLAND tiUC2AR STATI0t*

UNIT 1 SP-571k AUGUST S, 1969 j

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MEROPOLITAN DISCU COMPA?iY -

! READING, PEUNSYLVARIA j

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' Gilbert Associates, Inc.

! 525 Lancaster krenue

' Reading, Pennsylvania C.J.Z. - C.A.L W.'J. hig2 00 I

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DE2 AILED SPECIFICATICIIS

!NDEX Ite: Tit le Fe:*

1:01 Secpe cf Work I-i 1:02 General Require =ents I-1 1:03 Engage =ent of Cther Materials I-?

1:Ch Materials I-3 1:C5 Laying Cenerete 31cek I-6 1:06 Sa=ple 3 rick Panel I-7 1:07 Laying Face Brick 1-i 1:08 Acid Prcof Ccnstructicn I-7

"% J- 1:09 Silicene Sealer , .1-3 1:10 Damaged Masenry 15 1:11 Architectural Precast Cencrete Canc;y f-9 1:12 Synthetic Rubber Ccating I-10 1:13 Caulking 1-11 1:lk List of Bid Drawings I-12

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.1 -(i4 h_a_tg 1:01' Secce of Work The CC:: TRAC *0R shall furnish all esterials, lat:ce, scarfeliing, equipment, and tools necessary to fully cceplete all assenry.

and architectural precast concrete WCRK as shcvn on the Drawings and' specified herein. The =asenry and architectural precast concrete WDR to be furnished, installed, and erecte1 under this Item shall include , but not necessarily be limited to the following:

1. Cencrete bicek valls.
2. Cenerete block cavity valls.

3 Precast lintels.

L. 31ock bed reinforcing.

5 Metal ties and cla ps.

6. Centrol joints:

Dur-0-Wal vide flange block joint.

7. Splash blocks.
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8. Pipe sleeves.

9 Face brick.

10. Precast concrete canopy. ..
11. Acid-proof Masenry.
12. Synthetic Rubber Ccating.
13. Caulking.

1:C2 General Recuirements 1:02.1 The CCITTRACTOR shall carefully unicad end stack face brick free of ground en voed planking, spread salt hay between layers, and cover brick piles with waterproof sheet esterial.

Delivery of brick in palletized forn is permissible , provided units are stored free of ground and covered.

1:02.2' Concrete bicek shall be stored in the same canner and in suen a fashicn as the face brick. All =aterials shall be s cred to prevent danage frc= =ud, rain, sleet, and sncv. Units shsl. b-delivered as required to avoid prolcngid site st.: rage.

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J 310ckvork shall :eet the ? :: land Cement Aase::ation standard.)

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A:02.L No =asenry shall be laid when the te=perature Of the cutside air is belev LO T, unless suitable means are pr:vided to heat the

=asenry =aterials and protect the 90FK ft:., freezing. Prote:tlen shall censist of heating the casonry materirls te at least LO 7, and =aintaining an air temperature ab:ve k0 y en both sides of the =asenry for a period of at le ast kd hears.

1:02.5. Wall tops shall be covered with waterproof cencas er equal

=aterial at the end of each day's verk and when L'OR is sus-pended by rain, sleet, or snow. Covers used shall shed vater and shall be anchored securely.

1:C2.6 Other :sterials shall be pr:tected frca damage. M:rtar dr ps shall be flushed away with water before the ::rtar hardens or stains other materials.

1:03 Encarement of Other Materials 1:03.1 As the WO?K pr gresses, all materials furnished by c her trades shall be built into =asonry valls.

1:03.2 Masenry WOEK shall be carefully fit around all pipe sleeves, 2]ps conduits , bcxes , etc. Icese steel lintels shall te set and all a

  • steel 'atEK resting en masenry shall be leveled and bedded. The COUT3ACTCR shall furnish and install neoprene ga het: hetvaen columns and bleek masonry as detailed. No r.asenry shall be tai l against celu== steel. ,

1:03 3 The CCNTRACTCE shall install three : curses of selli bicek ;.nder

! all steel bea s bearing dire:tly en block walls, er inst 211 three c:urses of hollov bleek with the : Ores f ailed with bleek casenry = rtar.

1:03.k All cen-bearing casenry valls and par;;ti:ns shall be kept clear cf structural steel, steel har joists, and bridging. ?::kets an

=asonry shall be forced around steel, keeping masonry 2/* tc.

away frem all steel.

1:03.5 Electrical conduits in masenry valle shall te a ta:ierl :cn-cealed in voids of units to avcid damaging expcsed bl::k f aces.

Where receptacles, switches, er ether Outlets :: cur, a true cpening shall be provided that vill be tully covered by a cover plate. If openings show bey:nd cover plates, blo:xs shall be replaced. .

1:03.6 All =etal vall flashing shall te laid in a bed of : rtar. The flashing shall be covered with = rtar while placing the next course of =asonry. Metal vall flashing shall net be laid dry A- directly over casenry units.

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'r 1:0L.1 Cencrete Masonry units:

1. Hollov load bearing units center =ing to AIDt C 00 #6T, Grade A. .
2. Solid concrete block units conforming to ASTM C IL5 46T, Grade A. -
3. Units which vill be exposed shall be of fine texture, of medium grain, over sanded, with edges and corners clear and sharp.
h. Units receiving plaster shall have s'ufficiently rough surface for gecd bcad.

5 All units shall ec=e fec= the same plant, shall be at least 28 days old before shipping to the job site and at the time of setting shall not exceed kO5 =oisture centent of their total absorptive capacity.

6. Unless noted otherwise en the Drawings all openings in con-crete block valls shall be fitted with precast concrete ,

block lintels. Faces 4hich are exposed to viev shall be cast to closely match the surf ace texture of the surrounding

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R - block. Aggregates used for lintel Concrete Shall be the sa=e as used for block. Cencrete =ix shall be 1
2:3 vith  :.

3,000 psi strength. Steel bars shall te 20,099 pai deftr=ti billet steel conferning to ATCt A 615-66. lintel bearing .

shall be 6 in. -in1=u=. kjt,I 'f'.

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,.or-1:0k.2 31cek *4all Reinforcing:

All block =asenry valls and partitions shall be reinferced horicentally in the joint using Dur-C

  • Jai Standard 'delded f steel No. 9 red reinforcing er E::GIUEER appproved equal, such as Ech=ana and Barnard Standard Truss-Mesh 'cek cr Keystene Steel and 'Jire Co. Truss Type Keyvall. Reinforcing shall te laid up in prcper vidths for each vall thickness, taid centinecus in hericental joints every 16 in, oc vertically. The CONTEACTOR ,

shall use prefabricated corner and tee sections, lap reinfer:ing at least 6 in. at all running splices. Reinforcing shall be laid over bicek, and ,=crtar placed over reds to ensure a positive and full bcnd with rods. The next course of block shall te bedded in this =crtar. Do not extend this reinforcing into exterior face brick. Where both vythes cf cavity valls art block, they shall be reinforced 16 in.- cc vertically with 3o.13 -

standard truss type reinforcing.

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OP-5?lk B-S-6o-(p.3 1:Ch.3 Face Brick:

1. Exterior =asonry walls, as shown en the Drawins:, sna11 te Rande: Ecck, white split faced =asenry units as manufactured by Nitterhause Cencrete Products , Inc. , Chambersburg , Pa.

Masenry units shall be A-10 glacial vhir.e consisting Of a specially prepared blend cf white cement, selected white aggregates, and water proofing ad=ixture te produce a den,se unit , unifor= in eclor and white thrcugh ut with a minimus cc=pressive strength cf h500 psi, as per sample submitted to the ENGINEER.

2. Units shall be 2-5/8" x 3-5/8" x 23-5/3" and 5-5/c" x 3-5/3" x 23-5/8" and shall be cut as required in the field.
3. White ce=ent shall be Medusa high early streng .h, meet:ng the specf Tications of ASTM and the ?crtland Cecent Asse: Latten. '

White aggregates shall be a speelal blend ef whi'.e calci'.e

  • as produced by the H. T. Canpbell Co. , Tcusen, Maryland.

Water proofing admixture shall be added te the cenerete six prior to productica of units to ensure dense uniform units vtth a vater abscrption of less than M.

1:Ch.h Face 3 rick Wall Ties:

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All exterier face brick shall be anchored to :enerete bic:k through the cavity with het galvani:ed b:x vall *.tes 3/16 in.

dia:eter wire 2" x 8" without drip feature as rade ' yo H,h. ann and Strnard Inc . , or AA Wire Products Cc. , Or E%GINEEE a.ppr:ved equal. Ties shall be installed at to, in. cen.ers vertically to occur at every se0ced block C0urst. The CONT"ACTI'R shall L ca'?

ties at joints without bic:R reinforeng.

1:Ch.5 Block Wall Strap Anchors:

1. shall te All interior casenry valls abutting =asenryx valls anchored at 2 ft oc vertically vt*..n 1-1 a,4t. x s
- an galvani:ed =etal anchers with ends turhed devn 2 In. Extens10ns into walls shall be h in. The CONTRACTCR shall fill b1:cks vich mortar where anchces turn into core, and fix all part;ti:n:

which step and butt steel columns with strap archors at 2 f:

cc. The COlTIRACTOR shall veld straps te columns as tne va'_1s go up. All require =ents shall be followed a~s detailed en the Drawings.

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! 2. The CONTRACTCR shall provide and install at all nas:nry valls abutting concrete valls cr where casenry veneer :s appued ta i

i concrete valls containing devetail anchors ,1 in vtd* xy

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gauge galvani:ed corrugated dovetail anchors, Ilc. 303 es manuf actured by Ech=an a..i latnard,1nrr,' Mew f:rk, U. f , Or

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1:Ch.6 Mortar for cencrete =asenry units shall confers to ASTM C 2 TC- gr 6kT, Type N. The folleving standards shall te noted:

1. Portland Cement:

ASTM C 150-63, Type I or II.

f. . Masenry Cement:

ASTM C 91-66, Type II 3 Sand:

All sand shall be clean masonry sand ccnferming to ASTM C lLh-66T.

k. Use 1:1:6 =in fcr all valls centaining con: rete nas:nry units 1:0h.7 Mortar for service build:ng face trick shall consist of the folleving:

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1. Atlas white =asenry cement.
2. Atlas white portland cement:

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ASTM C 150-68, Type I.

3 White =asenry sand free of injurious a= cunts of saline ,

alkaline or cr6 ant: substances, in ac:crdance var.n AST:4 designation C 14h-66T

k. Use 1:1:6 =ix f r all servi:e buildin6 f ace brick.

1:0h.8 Cavity Wall Insulation:

1. All cavity. vall insulation shall be "Fea thane" as manufactured by Pittsburgh Corning or EI:Gl: FEER appenred equal. .
2. Where indicated en the Drawings, the Service Building Walls shall be insulated vath two layers of 1 in tnich "Feamthane" insulatica with joints staggered 3 Cavity valls for miscellaneous related :ut buildings snall be insulated with 1 layer of 1 in, th Or. " Tea: thane" insula-

~~=s ti:n. "Fea= thane" snall have a 0.15 "k" f acter , viter taper h)

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h. Masonry valls shall be plumb, dry, s= oth, and : lean with full =crtar joints.

5 "Foa= thane" .shall be inst alled by applying h in. dian-te r x 1/4 in. thick gebs of PC 55 near each corner and midway between the corners anc the long dt=ensten of the board, and two equally spaced gobs along the center line c: the board. "Fea= thane" shall then be applied heri:cntally to the outer surface of the inner casenry vall with sufficient

=anual pressure to ensure tight joints and a good contact with the casonry vall. Vertical joints shall be stnigered.

The outer =asenry vall shall be constructed to provide an air space between the masonry and "Tcanthane". Weep holes shall be previded at the base of the suter =asenry vall by c=itting =:rtar frc= every third vertical joint -

1:0L.9 Gaskets at Steel Colu=ns:

As detailed, =asenry shall be separated frc= steel columns with centinuous 3/8 in. thi:k closed cell sp:nge ne prene ex; ansi:n strips equal to Willia =s.E@t. t!'

.g 1:0k.10 Centrol Joint Tiller in Exterior Walls:

The CCNTRACTOR scall furnish and install filler strips at all 3/8 in. vide centrol j:ints in exteri:r face trich a. lo:ati:ns noted on the Drawings. Gasket material shs11 be tne same as specified for gaskets at steel columns. Tiller strips snall be re:essed 1/2 in, behind face of brick to allow fer final J int caulking. Face brick ties shall be located at ea:h side cf joints and 2 in. away.

1:05 laying Cenerete 310ek The CC:T!RACTCR shall lay all blo:X in 8 in. ::urse he tsht , length 16 in, with all heri: ntal and vertical Jcints to e 3/3 .n. /

Jcints in cavity side of insulated valls shazl be stru:% : lust.

Walls shall be built plu=b and true to line with straignt Jc;ntJ.

Required bicek cutting shall be neat and accurate , cut o ts cr.

arranged in balance and sy==etry at vall openings. Exter:ar vall cpening ja=bs shall be built sclid, 8 :n, vide. The cavity beyond ja=bs shall be started as detailel. . INatly tcol all block joints exposed to view to a s=ccth ccncave surfa:e free of sharp lines and fins. Run ali interior pnttttlena up

.to the reef deck so as te leave no openings 1or tr ans=1ssivn ::

scund b~etween adjacent rec =s or areas. C;enings for passage Of ducts, pipes, etc., shall be provided as requirei.

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1:C6 Sample Brick Panel Leose brick samples shall be submitted to the CCUSTPUCTION "al:AGEF vhc in turn shall submit them to the ENGINEEP. for his approvai.

A h ft vide by 2 ft high sample brick panel shall be constructed at t5e job site for approval.

1:07 Laying Face Brick Face brick shall be placed in the vall in a randc interrupted coursed ashlar pattern with all jointa raked. Brick shall be shipped split to the job site. The manufacturer shall turr.ish the CCUTRACTOR a device for splitting the face brick at the desired length. Open cavities shall be kept clean and free cf

=crtar drops. Till all brick Joints solid with :: tar. Ueatly rake all crick joints e.tposed to view approx 1=stely 1/L 1r. . an d plus line holes with =ortar. For= 5/16 in. veep h 'es at ift c:

4 at cavities where fla'shing occurs above lintels er abcVe finished Grade. Aluminu insect screening shall be provided at weep holes. Holes shall occur in vertical joints and shall slope to drain.

1:CS Acid-Prcot Censtructicn t 1:08.1 General:

.A As shown en the Drawings, the side valls of the sump at the caustic storage tank shall be protected with a 1 ning Of acid-peccf =asenry. The acid-proof naterials shall be as specified '

hereinafter, er E5GINEER approved equal. The installat ien ::

the acid-proof =asonry shall be performed by verh=en e.v.perienced in this specialty WORK.

1:03.2 Acid-Proof Masonry:

Acid-proof =asonry shall be applied as follovs:

1. Cencrete Ccating:

One coat of 31 prener shall be applied in acccrdance with Atlas Mineral Products Data Sheet No. 4-20PI.

2. Me=brane (Interliner):

Over the priced concrete shall be applied 1/h in. or Atlasti:

LO in accordance with Atlas Mineral Products Data Sheet US.

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3. Brickverk:

Acid-prcct nasonry shall be used in ene follow;ng locattens:

i j a. Corrosive vaste sump adjacent to the caustic scorage tank in the turbine building.

b. Acid and caustle unloading area, ad.;acen: to the exterior south tuebine buildtng vall.

l h. All brick shall confer: to "Chemic al - Eesistant "asenry urits, Spec. for," ASTM C 279-5L, Type L (acid prcef red shale). The brick sneathing thickness shall te 1-3/h :n.

d 5 The Jointing material for the casenry shall be cartt-Alker '

as specified en Atlas Mineral Produ:ts Data sheet Mc. 5-31?I.

! A bed and vertical joint of ap;rcximately 1/3 in. ne:Inal thickness shall be used for all units. The mascnry shall be set in accordance vath Atlas Mineral Freducts Data

Sheet No. 2-21CN.

1:c3.3 Protection of Adjacent Surfaces:

9 The concrete surfaces above the acid-prcot =asenry shall be

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coated with an application, appror.1:stely 1/3 in. thick, cf Atlas Maintenance Mactic as specified en Atlas Mineral Praducts Data Sheet No. 7-72?I.

1:09 Silicene Sealer .

After all extertor face brick :sscnry '..UE:~ has been ece;isted, valls have been finally cleaned, and all icose =crtar has been l re=oved, silicene sealer sh'all te applied t. :sli wh:tc face brick wall areas. S111cene sesier shat! v equal tc "Tntrr.r est i'

777" as produced by Standard Dry 'Juli Fr:, ducts, Inc. and snail be applied according to the nanufacturer's specificatiens.

I 1:10 Damaged Masenry

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All damaged masonry items shall be renoved snd replaced with new units . prior' to the CWUER'S accept ance cf ths buildings, i Replacement shall include re;ainting all new rasenry to maten surrounding painted surfaces as they occur . All' exterior cnd interior vall defects cecurrtng during a cr.e ye c maintenance i ' period shall be ccrrected it=ediately up;n r.etice frc: the COUSTRUCTION MANAGER. The CCUTRACTORashall protect 211 in-place equipment, furnishings, and other :sterials against daar.g' .

He vill be held responsible for all damage: t r.eu--a d '-" snall pay all cleaning, restcratica or replacene:.t costs.

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1:11 Architecturst Freenst Cenerer.e C9ncey 1:11.1 The~ precast architectural cencrete canopy shall te turnianed by Nitterhause Concrete Products, Inc., P.O. 3;x N, Chanbersburg, Pa. cr ENGINEER appreved equal. The manufacturer shall supply and install all anchoring devices and plates whteh are cas'. in the precast cencrete canepy. The manufacturer chall furnich all bearing plates and anchoring devt. es to the COUTP. ACTOR tor his installation. The canopy shall te designed for a manl =um c:

50 lbs per sq ft live lead.

1:11.2 Sample:

Before proceeding vitn fabricat!cn the CCUTPACTOR shall sutnit for the ENGINEER'S approval une (1) sample of the preesst archi-tectural concrete. Finish shall be light sand blast finish er acid etch finish as per sample which can be seen in the ENGINEE:.'S cffice. The sa=ple shall show the range cf color and texture and the character of the WOSK that the CONTRACTCR proposes to farnish. The approved sample shall serve es a standard fer quality, color, and finish.

1:11.3 Materials:

'.hs 1. Coarse aggregate shall be 3/h in. In sice , light e.c lored 11:estcne such as the rainbow range supplied by Teeters Quarry, Westminister, Maryland-

2. Fine aggregate sn211 be 20 mesn Calsite Sand as tangfa: ured by Harry T. Ca=pbell, Towsen , Maryland. In ac <.ase v ll crdinary building or concrete sands be permitteet tc te used.

3 Cemen. shall be White Medusa ?!c. hM 66

h. Reir. forcing tars shall be Intsemed: ate Grade Rev B al le- Stee; with a m:n1=um yield point of LO,000 psi deformed in a:c,rd:nc?

With ASTM A 615-6c. Size of reinrvre:ng snall te as scovn on the Drawing.

1:11.h Cenerete Quality:

All architectural precast concrete shall hsve a c;mpres-tv; strength of 5,000 psi when cured and tested at 26 day * ,

accordance with the latest ASTM testing methods. Su. T U . t test cylinders shall be *.aken at intervals '.nrougnnut tne castu:g and tested by an independent testing laboratory.

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M 1:11.5 Handling:

The precast concrete cancpy shall not ba stored at tne a;b .c * .

It shall be erected as soon as delivezwu tc the Jeb site .

The CO:r!RACTOR shall handle and transrer 'he precast concrete canop" in a manner that vill avoid undue . rains , st aining , cc other damage. Precast concrete damaged during transporting er erection shall be cause for rejectten.

1:11.6 Erection of Precast Architectural Cenerete:

1. The erection of, the precast architectural cencrete snall be done by the precast =anufacturer. Extreme cautica shall be taken during erection so as not to ch;p, s;all cr da: age the architectural precast concrete.
2. After all precast architectural ccacrete has been erected, it is the respensibility of the CCUSTRUCT!CU MAUAGER to cne:k that the precast is plumb and true to line to the E*GINEER'S satisfaction.

1:11.7 Final Cleaning:

After erection is completed the CO::TEACTOR shall touch up any

> chips , spalls , or discoloratien. It shall be the COUT?ACT0E'S ihs responsibility to protect the precast architectural concrete frc= being disec1cred or defaced during the construction cf the.

balance of the '40RK.

1:12 Synthetie Pubb'er Coating .

1:12.1 Af ter erection, the precast ecnerete canopy and ccncrete r r;:

hatches en the intake screen and pump hcuse shall be ccat-d v tn menclithic, elastemeric reef coat;ng equal to Hypaion as .an - -

factured by DuPcnt or ENGl'iEER appreved equai. The CCMRACT7H shall include all later, =aterial, equipcent, and services e.cesca.u y to ecmpletely furnish, deliver, and apply th- synthetic rtbber coating to the top surface cf the precast concrete canopy.

1:12.2 Application:

'All surface preparations and pr:=ing en the cencrete receiving the coating, shall be dene by the CCI.THACTCR The appttra* ton shall be applied in the tanufacturer's recemmended number cf coats, to a total dry film thickness of not less than 20 miit s ,

in strict accordance with the manufacturer's spectri:stten. Color shall be as selected by the ENGINEER.*

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t <f- 1:13 Caulking 1:13.1 Scepe:

i The CONTRACTCR shall furnish all labor and materials netessa ry to fully co=plete all exterior and interior cauiking require.1 at all joints around door frames, sills , thresholds , control

' joints, louvers, service building vindows, and cther =1scell ne:c openings and ite=s, where these ite=s join with =ascary or concrete at interior and exterior =asonry or concrete cpenings.

1:13.2 Samples:

Samples of all caulking, scalants, and foa= filler naterial snsii j be submitted to the ENGINEER for approtal. Materials used annii

! cc= ply with approved samples.

1:13.3 Materials:

l'. Masonry expansien joints shall be caulked en the weatnerste.e with Tre=co Menolastc= erie, General Electric Stiiecne Sealant or Flexalen as made by Philadelphia Waterproofing C =pany.

Interior joints shall be caulked with Tre=co Caulking and i Pointing Cc= pound or equal by Pecora.

2. All other caulking shall be Tre=co Caulking and Pointing fbh Cc= pound er equal by Pecora or Flexalon.

3 Yarn shall be a neoprene sponge, vegetible ::ter or un.reated

! caku=, and shall be free of any material that vt:1 r.2u.

=asonry, stene and ether finish naterials, 1:13.k Application:

1 in applying the caulking, the CONTRACTOR shali foli;w the j following precedures:

.l. Joints and spaces to be caulked 'shall be free : c=

dust, dirt, and dampness. Joints snali not be caulr.ed .a.ies s i

they substantially comply with details and test prictt:eu of the trade. Apply =asking tape and' protect 4arrcundtng

=aterials fec= stains.

i i 2. Joints over 3/h in. deep shall te packed with yarn,:cskun or neoprene-to within 3/4 in of the sur:2ce . Surfaced insit be pri=ed as recc== ended to ensure a high bcnd.

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' . g.A 3 Apply caulking ecmpound above h0 F exterior temperature with a pressure gun having no::les to fit into the joints. Fill joints solidly and mucothly without thin edges, recove excess cespcund, and leave adjoining surfaces clean. !-take caulking WCRK neat and straight.

h. Complete caulking before final coat of paint is applied by Others. Caulking may be applied after all painting is i

finished provided that caulking is exact colcr of adjcining surfaces.

5 Joints occurring between gunite covering over ne:a1 duet and concrete centainment vessel shall be packed vich yarn, oakum er spense neoprene as specified previcusly and caulked with General Electric sill:ene sealant.

6. Clean all surfaces stained by caulking. Correct all defects and leaks upon notice by the CWWER during the ene year guarantee period.

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