ML20127B862

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Rev 6 to Special Process Procedure W-SP-7, Repair & Curing of Concrete Repair for Placement 499S02-10B
ML20127B862
Person / Time
Site: Waterford 
Issue date: 09/16/1976
From:
J.A. JONES CONSTRUCTION CO.
To:
Shared Package
ML17198A241 List: ... further results
References
FOIA-84-455 W-SP-7, NUDOCS 8506220076
Download: ML20127B862 (27)
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J. A. JONES CONSTRUCTION COMPANY PAGE 1 0F 8 ~ t NO. SPECIAL PROCESS PROCEDURE W-SP-7 REPAlR AND CURING OF CONCRETE REPAli FOR PLACEMENT REV. NO. 6 TITLE.* 499502-10B & DATE9/16/76 PROJECT TITLE: WATERFORD SES UNIT

0. 3 CONTRACT NO. W3-NY-4 1.0_ PURPOSE To outline methods used by J. A. Jones Construction Company and Subcontractors for repair and curing of concrete repair for Placement 499502-108.

2.0 SCOPE This procedure includes the requirements to be used by J. A. Jones Construction Company and their Subcontractors in the concrete repair of Placement 499502-108. R-2 3.0 REPAIR SEQUENCE R-4 3.1 The repair work shall be as follows and performed in the sequence as directed by the Engineer. R-1 3.1.1 Epoxy Pressure Grouting Cored Holes with Cracks. 3.1.2 Filling of holes not in crack area. R-1 3.1.3 Pressure grouting volds and horizontal cored hole #25 in West face R-2 3.1.4 Repair of top surface shall be performed during recharging of backfill as directed by the Engineer. Waterstop embedment may be perfonned at any t'ime. R-2

4.0 REFERENCES

4.1 Ebasco Services, Inc. Specification LOU-1564.472, Section li, latest revision, " Concrete Placement, Curing and Finishing". 4.2 ACl-503, Guide for use of epoxy compounds with concrete. 4.3 Sika chemical Company brochure for "Sikadur Epoxy Adhesives". Appropriate sheets attached. 4.4 J. A. Jones Construction Company Work Procedure, W-WP-5, " Concrete Placing, Curing, Finishing and Repair." l 4.5 J. A. Jones Construction Company Work Procedure, W-WP-II, " Waterproofing". 5.0 RESPONSIBILITIES 5.1 Ebasco Services, Inc. Is responsible for supplying all materials, receiving inspection, testing and documentation of such tests as required by Reference 4.1 to support J. A. Jones Construction Company and their Subcontractors in performing their work. ,-,--._---.-.r.-, r- - - - -. - -----e. ~-,-,7 ,.... - + -...,. - c

~ J. A. JONES CONSTRUCTION COMPANY PAGE 2 0F 8 PROCEDURE NO. SPECIAL PROCESS PROCEDURE W-SP-7 TITLE. REPAIR AND CURING OF CONCRETE ' REPAIR FOR PLACEMENT REV. NO. 6 499502-10B & DATE 9/16/76 t PROJECT TITLE: WATERFORD SES UNIT NO. b CONTRACT NO. W3-NY-4 5.2 J. A. Jones Construction Company and their Subcontractors are responsible i for forming, placing aggregate, grouting and curing of cement pressure grouted area, the epoxy pressuring grouting for sealing cracks and the surface preparation and topping and finishing of top surface as required by this procedure. TOP SURFACE PREPARATION 6.0 PROCEDURE i 6.1 J. A. Jones Construction Company Engineering shall map the surface of the entire pour delineating the areas that can be made to meet the required elevation and finish by grinding and the areas that must be chipped out to sound concrete and topped. 6.2 The areas requiring chipping and topping shall be chipped down to a minimum of one and one half Inch (It') below required elevation. ? R-1 6.3 Af ter chipping to sound concrete and prior to any topping or grinding of other area, J. A. Jones Construction Company Engineering shall notify Ebasco Engineering that the. area is ready for inspection. Any area containing unsound concrete shall be Inspected by the Windsor Probe method, in ver-Ifying the concrete soundness, the equivalent average 28 day compressive strength shall not be less than 5000 PSI and none of the equivalent com-2 pressive strengths shall be less chan 4600 PSI. R-2 6.4 Areas requiring grinding only to produce. an acceptable surface shall be ground with suitable grinding machines un.tll acceptable by the Engineer. R-1 6.5 The surface of the chipped out area shall be cleaned and free from standing } water, then coated with a neat coat of Sika Hi-Mod Epoxy mixed and applied per manufacturer's requi rements. J. A. Jones' quality Verification to verify and document the acceptance of epoxy material as to shelf life, mixing and appilcation. R-1 6.6 After neat coat of epoxy, place 4000 PSI Class AA Concrete using pea gravel as coarse aggregate to required elevation and finish as required by approved construction drawings. 6.7 After the required finish has been obtained,'c'ure per requirements of Reference 4.1 and 4.4 1 e r y,- ,---,--m -_-..-,.,m ,,--_-..-..--,..v.-

J. A. JONES CONSTRUCTION COMPANY PAGE 3 0F 8 PROCEDURE NO. SPECIAL PROCESS PROCEDURE w-SP-7' TITLE: REPAIR AND CURING OF CONCRETE REPAlR FOR PLACEMENT REV. NO. 6 499502-10B & DATE 9/16/76 PROJECT TITLE: WATERFORD SES UNIT NO. 3 CONTRACT NO. W3-NY-4 WATERSTOP EMBEDMENT 7.0 PROCEDURE 7.1 PREPARATION 7.1.1 Determine area to be repaired. Area shall be determined by estimating workable area that can be worked, based on " pot life" and required cooling time if repair requires more than one inch (l") thickness, Reference 7.3.2. 7.1.2 Clean area to be worked as follows: 7.1. 2.1 Chip to sound concrete. 7.1.2.2 Surface must be dry. 7.1.2.3 Remove all dust, Ialtance, grease, and other foreign particles. p 7.1.3 Straighten and support waterstop as required. 7.2 MIXING 7.2.1 Mix Sikadur-HI-Mod Gel two (2) parts epoxy per manufacturer's recommendations. Amount to be determined by area to be worked. 7.2.2 Measure Colma Quartzite Aggregate and mix one (1) part Sika-Hi-Mod Gel epoxy to one (1) part Quartzite Aggregate. Add aggregate slowly to binder while mixing. 7.2.3 Do not attempt to use af ter " pot life" has expired. By adding aggregate, it will add approximately five (5) minutes to " pot 1ife". 7.3 APPLICATION 7.3.1 Apply prepared epoxy mortar to embed waterstop a,s required per attached sketch, Appendix A. 7.3.2 Apply mortar not to exceed one inch (l") thickness. If required mortar thickness exceeds one inch (l"), allow preceeding layer to cool before applying second layer. Coolness can be determined when the mortar becomes hard. It should be cool, approximately one (1) hour af ter mixing.

t. ~ I J. A. JONES CONSTRUCTlati COMPANY PAGE 4 0F 8 SPECIAL PROCESS PROCEDURE W-SP-7 TITLE. REPAIR AND CURING OF CONCRETE REPAIR FOR PLACEMENT REV. NO. 6 499S02-10B & DATE 9/16/76 PROJECT TITLE: WATERFORD SES UNIT NO. 3' CONTRACT NO. W3-NY-4 5 ~ 7.3.3 Wen more than one (1) layer is required, a neat coat of Sikadur-Hi-Mod epoxy to preceeding layer before applying additional layers of mortar is not required. { 7.4 CURING j 7.4.1 None required. NOTE 4 DO NOT EXCEED ONE INCH (1") LAYER AS NOTED IN 7.3.2' ABOVE. REPAIR OF VERTICAL CORED HOLES WITHOUT CRACKS ' e 8.0 PROCEDURE R-4 ' 8.1 Thoroughly clean and.dewater all holes remaining after epoxy pressure l grouting cored holes with cracks has been completed. 8.2 Coat inside surface of hole and surface of area chipped out to expose reinforcing steel with Sikadur-Hi-Mod epoxy. The epoxy to be mixed and applied per manufacturer's. reconsnendations. J. A.. Jones' Quality Verification personnel is to verify and document epoxy acceptance as pertains to shelf life, mixing and appli~ cation. R-1 8.3 In accordanew with Reference 4.1 and 4.4, fill holes with 4000 PSI Class AA R-3 concrete in layers and. vibrate as required to consolidate and finish to match required surface texture, 8.4 Cure as required per Reference 4.1 and 4.4. PRESSURE GROUTING VOIDS AND HORIZONTAL CORED HOLES No. 25 IN WEST FACE 9.0 PROCEDURE 9.1 J. A. Jones to inspect and document both North and South large void has been chipped to sound concrete. All surfaces of existing concrete in both North and South large void shall be coated with a neat coat of 4 i Sika-Dur HI Mod epoxy, mixed and applied in accordance with manufacturer's reconsnendations prior to the placement of fresh concrete. D e s ~ ,,,e

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J. JONES CONSTRUCT 10!! COMPANY I PAGE 5 0F 8 PROCEDURE NO. 'SPECIAL PROCESS PROCEDURE w.5p_7 T ITI.E. REPAIR AND CURING OF CONCRETE REPAIR FOR PLACEMENT REV. NO. 6 a 499502-108 r,DATE 9/16/76 PROJECT TITLE: WATERFORD SES UNIT NO ! 3 CONTRACT NO. W3-NY-4 i R-5 9.2 Form North large void from the bottom toward the top covering approximately three forths (3/4) of the large vol'd. Prepare upper one forth (1/4) of form )- to be installed after the concrete for the bottom three forths (3/4) has been placed. The top of the form must have a " birds mouth".of sufficient i size and height to assure complete fillfng of the void with concrete and provide access for vibrators and openirigs for yenting all air. Place the concrete using " birds mouth'3 and chute or by placing oump hose to the rear of the void. As the concrete is placed and consolidated by' vibration, 3 continue toward the front of the void. Place concrete at a low rate of placement to allow sufficient time for consolidation and removal of air. By starting the placing at the r. ear, the air will be forced out the front. After the large opening of the void has been filled and consolidated, add forms ap required until concrete cannot be placed and vibrated into the large opening of the void. Then add required forms'and "tt rds, mouth" and i place concrete through the top,of the vold at the surface of the slab. Only place at a rate that can be consolidated. Fill the entire void including the vold on the surface and the drilled hole from the surface into i the void. Add chamfer strip and finish expos,ed surface as required by apprdVed drawings and specifications per Reference 4.1. R-5 9.3 Form only the large portion South void approximately half way up. Forin the top half in a manner that will. allow addin,g forming as the placing continues towerd the top of the void. Place concrete using " birds mouth" and chute or pump hose. Start placing and consolidating by vibrating at the rear of the void and continue toward the frpnt. Starting at the rear will force air out the front of the void. Conti,oue. placing, adding forms with " birds mouth" until the entire void is full'and consolidated. Place concrete at a, rate that can be consolidated.. Stop this placing operation at the top of the large void. The shallow portion.of this void shall be repaired per l Paragraph 9.4 Fill the drilled hole from the surface into the void, consolidate and finish surface as required by approved drawing and specificatic ns per Reference 4.1. Place form over the large deep, portion of the vold only. ~ R-5 9.4 All other voids on the West face shall be repal* red by coating surface wl'th Sika-Dur Hi Hod epoxy, mixed and applied per manufacturer's reconsnendations. theh dry packed per Reference 4.1 R-5 9.5 Cure by leaving forms in place to keep in moist condition. Areas. not formed and the top surface shall be cured with burlap and water per Reference 4.1 i and 4.4. i e 1 o w..,,e --, _.e -, -,-,,,n- ,._,..,._r.,,,,,,-- nc-.,w,,,, --n----._,_.,,-

J. A. J0NES CONSTRU': TION COMPANY PAGE 6 0F 8 SPECIAL PROCESS PROCEDURE PROCEDURE NO. i y,g pg REPAlR AND CURING OF CONCRETE REPAlR FOR Pl.ACEMENT REV. NO. 6 T ITLE

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4 PROJECT TITLE: WATERFORD SES UNIT NO. 3 CONTRACT NO. W3-NY-4 R-5 - 9. 6' Pack hole number 25 as located on sketch, Appendix 0, with begged, oven ~ d ryed pea g ravel. Install steel plate plug in front of opening which contains two (2) one forth inch (1/4") NPT pipe ' nipple, one for fill and one for vent. The fill nipple shall have a one forth inch (1/4") NPT 1 pipe attached long enough to reach the, far back of the hole. The plug shall be installed with the vent at th's top. 6nstall the plug using Sika Set Plug. Epoxy grout the hole using $lka-Lo Mod LV applied with 1 a pressure pot. Apply epoxy with vent open until all air has been removed. 1 When air is removed, close vent and hole 20 PSI pressure until refusal of i material or 15 minutes. After epoxy has cured for a minimum'of 24 hours, i chip out plate plug and repair surface per Paragraph 9.4.- R-6 9.7 Af ter curing has been completed on West face, remove forms and apply i _ aterproofing over West face of placement 108 as shown Appendix E, w j dated September 15. 1976, per J. A. Jones' Work procedure, W-WP-II, "Wa t e rp roof ing". An additional twelve Inch (12") wide layer shall be j installed over the exposed edges of the first layer. All exposed edges 4 shall have a trowelled bead of mastic applied after the memb'rane Installatic n is complete. Terminate bottom and top of waterproofing in reglets as detai le4' 4 in attached memo dated July 28, 1976, from E. J. Gallagher to J. O. Booth and sketch. l I EP0XY PRESSURE GROUTING CORED HOLES WITH CRACKS R-2 10.0 PROCEDURE 10.1 All equipment required for this procedure shall be collected and checked out. A dry run shall be performed using water for the grout, pumping against a closed valve to assure the equipment is in good working order. Special note shall be made of the pressure gauge and r lief valve to assure correct operability. Calibrat' -f pressure gauge is to be 3 verifled and documented. i e I e + l + i - ~. - .m _~, ~m,_.-.-_,,._....~--,-.,-,.-.o_,~,v..,,___._ ._y,._c_ _-.-_.-..._m.....

J. L. .3.E3 C.;;iSTP.UCZ Cv:W.C Fl4E 7 0F 8 ~ ~~ t hmm21. LO. [ hO ;TPUCTIC:: 1:0?J'. 2OCEDL".'.E l W-SP-7 [ U*U ME: REPAIR AND CURING OF CONCRETE REPAIR FOR PLACEMENT 6 499502-10B 6 DAIE: 9/16/76 ??.0 JECT TIT.'.C: WATERFORO SES UNIT NO. 3 CONTRACT NO. W3-NY-4 10.2 The Sikadur-Lo-Mod LV epoxy and bagged pea gravel shall be ordered, received and approved for use. g R-4 10.3 Cored holes Numbers 7, 9, 14, 15, 18, 19, 21, 22.,23 and 24 which have been determined to contain cracks by visual examination of cores and are located on Appendix "B" shall be cleaned of all foreign material and free of all standing, water, before any other grouting operation is started. I 10.4 An expanding plug as detailed on attached sketch, Appendix "CP, shall be g fabricated for each hole to be pressure grouted, and coated with wax to g prevent adherence of the epoxy. Each plug shall provide a fill port and a vent. The fill port shall be provided with a quick coupling and the l vent with a cap or valve for venting. The supply line between the pressure pot and quick coupl.Ing shall be provided with a sight glass for observing flow of epoxy. 10.5 The grouting operation sh.sll begin with hole number 24 Assure that all holes are clean and dry, then pack hole number 24 with paa gravel from one of the sealed bags. When the hole has been packed with the pea gravel, install the plug, as provided in 10.4 above. R-4 10.6 Mix the Sikadur-Lo-Mod LV epoxy per manufacturevs recommendations. Mix only l the amount that can be used in approximately 15 minutes or as directed by the Sika representative. Place.the container of epoxy into one of the l paint pressure pots which has been connected to the quick coupling In the i plug In hole 24. Apply air pressure as directed by Sika representative l (approximately 10 PSI) to pressure pot and observe flow of epoxy in sight I glass. When the epoxy runs out, switch grout supply line to other pressure i pot and continue grouting operation. Clean first pressure pot grout supply ? line with Sika Equipment Cleaner 650 while additional epoxy is being mixed. Continue this switching and mixing operation until epoxy is observed passing l Into one of the adjacent cored' holes or ability to move epoxy has ceased. If + epoxy cannot be moved by the 10 PSI pressure, increase the pressure by 5 PSI l Increments until the epoxy begins to move or until 25 PSI has been obtained. If the epoxy cannot be moved at 25. PSI hold this pressure for 15 minutes, g R-4 10.7 If epoxy is observed passing into one of. the adjacent cored holes, continue to hold pressure on the first hole, mix additional epoxy and fill hole which epoxy was observed flowing in to, approximately half full with neat epoxy, pour small amounts of pea gravel into the hole and " rod" Into the neat epoxy, l continue adding neat epoxy and pea gravel until hole is full. When hole is full, install plug as provided in 10.4 Open vent In plug and continue i i --n ,. - - - - - - - - - - ~ - -

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ci:c.S C'..JTRUCT! I CD:iPl'n' PAGE 8 X 8 1%CEDUIU. 60. ~ ~~ CC. rTn'.'On.;;; 11;'a PROCILL"'2 w-sp-7 I TITLE: FIV. I;0 6 REPAlR AND CURING OF CONCRETE REPAIR FOR PLACEMENT & DATg: 499502-10B 9/16/76 ?ROJECT TITII.: WATERFORD SES UNIT NO. 3 CONTRACT NO. W3-NY-4 i pressurlzing first hole until second hole is full and air is vented out vent hole. If connection between the holes is not of sufficient size to t pressure the second hole in approximately 15 minutes, after pressure has been increased as outlined above, then apply epoxy to second hole using second pot. If epoxy is observed entering a third hole, fill it with neat epoxy and pea gravel as above. Continue to pressure second hole if pot had to be connected to pressurlze It, If not, then connect pot to second l hole and apply pressure fri 5 PSI Increments as outlined above. Disconnect I pot f rom first hole. Continue this filling and pressurizing operation until all connecting holes are grouted and pressure maintained for 15 minutes. Should epoxy be observed reaching any surface outside cored holes, release pressure and seal opening with Sika set plug then resume pressure. R-4 10.8 Holes without conne'cting cracks shall be grouted by cleaning and filling with neat epoxy and pea gravel and pressurized as outlined in Paragraph 10.6 above. R-4 10.9 Remove all plugs and clean plugs and equipment with Sika Equipment Cleaner 650. R-4' 10.10 After epoxy has set and at time of filling of holes which did not contain cracks, fill the remainder of the holes using the procedure for filling cored holes without cracks, Paragraph 8.0 above. R-5 11.0 ATTACHMENTS 1 -11.1 Appendix A (Diagram of application of epoxy mortar, to embed waterstop.) 11.2 Appendix B (Core Locations - Concrete Placement 499-108). R-5 11.3 Appendix C (Forming for West volds) DELETED. 11.4 Appendix 0 (Detailed sketch of expanding plug)., 11.5 Sika Chemical Data Sheets 11.6 Memorandum (To J. O. Booth from E. J. Ga.llagher dated Jul,y 28,1976). R-6 11.7 Appendix E (West Face of 105 Sketch) I, b I I

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.I Grovo. SlK ASTlX Datn Shec. HM-08/5 d Codc: 370 super:ed:a 1'as 75/12 A ADHESNCS >(r.! ^17j'"" SlKADUR Hi-MOD' q S A SURFACING 'N AGENTS High-modulus, high-strength. moisture-insonsitive epoxy adhesive SlKA CHEMICAL / LYNDHURST. N. J. 07071 DESCRIPTION Sikadur Hi-Mod is a 100%-solids, 2-component, moisture-insensitive, epoxy-resin sys tem. It is an all-purpose, high-strength, rigid adhesive designed for structural bonding of dry, can't-dry, damp, or wet structural materials free of standing water. Especially suitable for bonding fresh plastic-portland cement to sound hardened concrete, or, when mixed with granules, to prepare a high-strength grout to level base plates and to anchor bolts. ADVANTAGES . Unique, non-polusulfide bonding adhesive - - Sikadur Hi-Mod is a polysu1 fide-free adhesive for ' gluing' plastic concrete to hardened concrete. . High-strength adhesive for *can't-dru' surfaces - - Exclusive formulation. Patented curing agent makes Hi-Mod insensitive to moisture before, during, and after cure.' Reduces need for job shut-down due to wet conditions. . Excellent adhesive for grouting base plates and anchoring bolts - = Nhen mixed with granules, Sikadur Hi-Mod produces a high-strength grout for base plates and to anchor bolts. TYPICAL PROPERTIES , Ratio

1 part by volume Component B to 1 parts Component A Color
Component A is hazy-straw; B is amber: Mixed color: Hazy-straw.

Viscosity : Similar to heavy oil Shelf life: 2 years Pot life of neat Sikadur Hi-Mod 25 min at 73r Tack-free (thin film) 3 hours at 73r Final cure (75% ultimate strength) ASM D-695 3 days at 73r Ultimate physical characteristics after cure at 73F and 50% relative humidity Tensile strength AS M D-638 3,000 psi min Tensile elongation. AS M D-638, modified 54 max Compressive strength ASM D-695 10,000 psi min Compressive modulus AS M D-695 475,000 psi min All values appr0ximate. Will vary with temperature and humidity. PACKAGING Sikadur Hi-Mod is available in 10-gallon and 3-gallon units. COVERAGE } Neat - one gallon of Sikadur Hi-Mod covers approximately 80 sq f t on a smooth surface. t Patented v. coven .t mitwro no. wonsi.. uit nm,. nei...., <= c o in oeu ve euc,e.urm ~~~"~'~'-~"] .**l0':".'J.:'" * "*.?"."'"l".' ",0.!.-~';

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o HOW TO USE Surface Preparation - - Concrece Surface must be clean and sound. It may be dry, damp, or wet, but free of standing water. Remove dust, laitance, grease, curing compounds, impregnations, waxes, foreign particles, and disintegrated materials by mechanical abrasion methods such as sandblasting. Steels Sandblast to appropriate finish. Prooortioning/ Mixing - - Volumetric ratio of Sikadur Hi-Mod is 1:1b (B: A). To mix, proportion 1 part 3 and 1 parts. A into clean pail. Mix thoroughly for 3 minutes with Sika paddle on low-speed (400- to 600-rpm) drill until blend is a uniform straw color. Mix only that amount of Hi-Mod that you can use in 25 minutes at 73F. Aeolication - - To prepare a grout to anchor bolts or level b'ase plates, mix Hi-Mod with Sikadur Granules. The amount of granules used should be the maximum amount possible while still-maintaining a pourable consistency, The ratio should be approximately 1:1 by loose volume (Hi-Mod: Granules). See technical bulletin on anchor bolt grouting and grouting base plates. LIMITATIONS Do not thin Sikadur Hi-Mod! Solvents will prevent proper cure. Use only even-dry granules to avoid encapsulation of moisture. Exposure to temp-eratures (after cure) above 180F (dry) and 120F (wet) not recommended. Substrate temperature must not be below 40F. h CAUTION A COMPONENT - For Industrial Use Only! Warning! May cause skin sensitisation or other allergic responses. Avoid inhalation of vapor. Use good ventilation partic-ularly if material is heated or sprayed. Prevent all contact with skin or eyes. If contact with skin occurs, wash immediately with soap and water. In case of con-tact with eyes, flush issnediately with water and contact a physician. SPI class 4. B COMPONENT - DANGER! CAUSES (SEVERE) 3CRNS. Contains alkaline amines strong sensitiser. Do not get.in eyes, on skin, on clothing. Avoid breathing vapor. Eeep container closed. Use with adequate ventilation. Wash thoroughly after handling. IN CASE OF CONTACT, immediately' flush eyes or skin with plenty of water FIRST AID: for at least 15 minutes. Remove contaminated clothing and shoes. Call.a physician. Wash clothing before reuse. Discard contaminated shoes. MCA WEAR PROTECTIVE C14 THING, GOGGLES, GLOVES, AND/OR BARRIER CREAMS LYNQHumST.NEW lsmSEY 07071 201-933-8801 (NJ) - 212-695-2253 OtY) I

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[,-[I.'.* A cur".*T:'. *n AMNC Low-modulus. low viscosity, moisture-insensitive epoxy adhesive S / N ST. N. 4 070M DESCRIPTION Sikadur Lo-Mod LV is a 1004-solids, 100%-reactive, 2-component, moisture-insensitive, epoxy-resin system. Its low modulus of elasticity provides greater 'give' under stress due to impact and thermal change. Excellent for epoxy-mortar floor toppings and patching on dry, can't-dry, damp, or wet structural materials that are free of standing water. LV's also an efficient penetrating impregnation to seal dry porous substrates. ADVANTAGES . Unique, low-modulus adhesive for *ean't-dru* surfaces - - Patented, exclusive formulation of Lo-Mod LV makes it insensitive to moisture before, during, and after cure. Reduces need for job shut-down due to wet conditions. . Impact, therm 1-resistant toppings, patches, overlays, grouts - - Lo-Mod LV has an approximate m;nimum tensile strength of 3,000 psi and a minimum tensile elong-ation of approxitately 54 for greater 'give' under stresses of impact and thermal change. . Effective sealer for dru, porous concrete - - Low viscosity (lightweight oil) j enhances penetration of dry, porous concrete. Also seals LV-mortar toppings. TYPICAL PROPERTIES

  • Ratio
1 part by volume Component B to 2 parts by volume Component A Color
Component A is clear strawr B is clear amber. Mixed light straw.

Viscosity Similar to lightweight oil Shelf life 2 years Pot life of neat Sikadur Lo-Mod LV 25 min at 73F Tack-free (thin film) 4 hours min at 73F Final cure (75% ultimate strength) ASm D-695 5 days at 73F Ultimate physi,, cal characteristics after cure at 73F and 50% relctive humidity Tensile cirength ASTM D-638 3,000 psi min Tensile elongation AS M D-638, modified 5% min Compressive strength Asm D-695 7,000 psi min Compressive modulus ASE D-695 250,000 max All values approximate. Will vary with temperature and humidity. PACKAGING Sikadur Lo-Mod LV is available in 9-gallon and 3-gallon units. COVERAGE ) Impregnation - Approximately 125 sq f t/ gal on smooth surfaces. As a mortar - One gallon of Lo-Mod LV mixed with 33: parts by loose volume of Colma Quartzite Aggregate yields approximately 679 cu in. of epoxy mortar. ii.. enuc,s.as ..m eo. n.uov. w o u.. tic..a. o u u,o. enu =ve e no.c cau"o t Patented ... ~,... - ..}

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i l j p IGW TO USE Surface Preparation - - Concrete: Surface must be clean and sound. It may be dry, damp, or wet, but free of standing water. For sealer application, substrate must j be dg. Remove dust, laitance, grease, curing compounds, impregnations, waxes, q l foreign particles, and disintegrated materials by mechanical abrasion methods. ,J j steels Sandblast to appropriate finish. j Proportioning / Mixing - - The volumetric ratio of Lo-Mod LV is 1:2 (B A). To mix, ] proportion 1 part B and 2 parts A into clean pail. Mix thoroughly for 3 minutes I with Sika paddle on low-speed (400- to 600-rpm) drill. Mix only that amount of Lo-Mod Lv that you can use in 25 minutes at 73r. Mortar - - To prepare Sikadur Lo-Mod LV epoxy mortar, slowly add approximately 3 4 I parts by loose volume of Colma Quartzite Aggregate to premixed Lo-Mod LV while continuing to mix to a uniform consistency. j Application - - Impregnation - Apply mixed Lo-Mod LV with rubber squeegee or roller to dry substrate. Allow time to penetrate. Squeegee off excess while it is still j liquid. spalled areas - Prime with Ic-Mod LV. Apply with broom, brush, or 4-in.- [ nap rollers. Pour mixed Lo-Mod LV into large, clean pail. Add Colma Quartzite Aggregate (approximately 3 parts by loose volume) while slowly continuing to mix ) to uniform consistency. Apply mortar while p' rime coat is still tacky. Use temp-orary or permanent screeds to strike off and level. Finish with steel trowel. Occasionally wipe trowel lightly with water-dampened rag for smooth finish. A ] sealer coat of In-Mod LV should be applied for optimum results. LIMITATIONS Do not thin Sikadur Lo-Mod LV. Solvents will prevent proper cure. Not designed for use as an adhesive for fresh plastic portland-cement mortar or concreta. Use Sikadur Hi-Mod. i Use only oven-dry aggregate to avoid encapsulation of moisture. Exposure to tesp-eratures (after cure) above 180r (dry) and 120r (wet) nut recosamonded. ' Substrate j ] toeperature must not be below 40r. CAUTION A COMPONENT - For Industrial Use Only! Warning! May cause skin sen,sitization or f ^ other allergic responses. Avoid inhalation of vapor. Use good ventilation partic-1- ularly if material is heated or sprayed. Prevent all contact with skin or eyes. (' If contact with skin occurs, wash isusediately with soap and water. In case of con-i tact with eyes, flush imunediately with water and contact a physician. SPI Class 2. \\ 3 COMPONENT - DANGER! CAUSES (SEVERE) BURNS. Contains alkaline amines: strong i sensitizer. Do not rJet in eyes, on skin, on clothing. Avoid breathing vapor. Keep j container closed. Use with adequate ventilation. Wash thoroughly after handling. FIRST AID: IN CASE OF ColfrACT, inunediately flush eyes or skin with plenty of water for at least 15 minutes. Remove contaminated clothing and shoes. Call a physician. Wash clothing before reuse. Discard contaminated shoes. MCA l l MAR PROTECTIVE CLOTHING, GOGGLES, GI4VES, AND/OR BARRIER CREAMS 4 i L.YNOMUAST.NsW JEASEY Q7071 201-933-8801 (NJ) - 212-695-2253 (NY) l .) i i

Data Shcot iocM M\\ A Ant.1 xtemen _ Group: SIM ASTlX . Code: 390

  1. "P'#Cd"

"' WI3 .f' P .itsy,,./ O A ADHEElvt 3 i A ouncKstTs SlKADUR HI-MOD GEL' 1 A== ~ ~rs A sunrACING AccNis High-modulus, gap-filling, , moisture-insensitive epoxy adhesive ' ~ ' " ~ SlKA CHEMICAL / LYNDHURST. N..l. 07071 DESCRIPTION Sikadur Hi-Mod Gel is a 100%-solids, 2-component, epoxy-resin system. A unique high-modulus, moisture-insensitive, structural adhesive for vertical and overhead bonding and.embedment - - it cures under dry, can't-dry, and wet conditions. ADVANTAGES . Celled adhesive for *can't-dru* surfaces - - Thick consistency of patented Sikadur Hi-Mod Gel makes it an efficient gap-filler to bond irregular, non-mating, overhead, or vertical surfaces whether they are dry, damp, or wet - - concrete, steel, wood, stone, brick, and many other structural materials. . Grouting mortar - - Mixed with oven-dry aggregate, Sikadur Hi-Mod Gel produces workable, sag-resistant mortar for overhead and vertical grouting. TYPICAL PROPERTIES Ratio

1 part by voltane Component B to 2 parts by volume Component A Color
Component A is milky white; B is light brown. Mixed light straw.

viscosity non-sag... similar to petroleum jelly Shelf life 2 years Pot life of neat Sikadur Hi-Mod Gel 25 min at 73r Tack-free (thin film) 3 hours at 73r Final cure (75% ultimate strength) ASM D-695 3 days at 73r Ultimate physical characteristics after cure at 73r and 50% relative humidity Tensile strength ASm D-638 2,000 psi min Tensile elongation ASm D-638, modified St max Compressive strength ASM D-695 9,000 psi min Compressive modulus ASM D-695 350,000 psi min All values approximate. Will vary with temperature and humidity. PACKAGING Sikadur Hi-Mod Gel is available in 9-gallon and 3-gallon units. _ COVERAGE Mortar - - One gallon of Sikadur Hi-Mod Gel, mixed with 1 part by loose voltane of Colma Quartzite Aggregate, will yield 358 cu in, of epoxy mortar. 1 I i Patented sma recovers aar cramoso,on n.ovsnm use ont,. star a ar,nou ca tonts. cesrevs e.oover cawren L"" *:"*"*".*"::~ ".'.".*.*.* *:'."*::'*:: *.d :".W = - -l :=: .. =r._ =.~ _.~. "-- :

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e, ,',i HOW TO USE ~ Surface Preparation - - Concrete: Surface must be clean and sound. It'may be dry h, or damp. Remove dust, laitance, grease, curing. compounds, impregnations, waxes,

  • /

foreign particles, and disintegrated materials by mechanical abrasion methods such-as sandblasting. Steel Sandblast to appropriate finish. Proportioning / Mixing - - Volumetric ratio of Sikadur Hi-Mod Gel is 1:2 (B A). To mix, proportion 1 part B and 2 parts A into clean pail. Mix thoroughly for 3 minutes with Sika paddle on low-speed (400- to 600-rpn) drill until blend is a uniform straw color. Mix only that amount of Hi-Mod Gel that you can use in 25 minutes at 73F. Preparing mortar - - Slowly mix up to 1 part by loose volume of Colma Quartzite Aggregate into premixed Gel. Continue mixing until consistehcy is uniform. Application - - Used neat or as a mortar, Sikadur Hi-Mod Gel may b3 applied with a spatula, trowel, or caulking gun. For information on bolt grouti.sg, see technical bulletin on ' Bolt Grouting. ' LIMITATIONS Do not thin Sikadur Hi-M0d Gel! Solvents will prevent proper cure. Not designed for use as an adhesive for fresh plastic portland-cament mortar or concrete. Use Sikadur Hi-Mod. Use only even-dry aggregate to avoid encapsulation of moisture. Exposure to temp-eratures (after cure) above 180F (dry) and 120F (wet) not recommended. Substrate temperature must not be below 40F. CAUTION

  • A COMPONENT - For Industrial Use Only! Warning! May cause skin sensitization or other allergic resp'onses. Avoid inhalation of vapor. Use good ventilation partic-ularly if material is heated or sprayed. Prevent all contact with skin or eyes.

If contact with skin occurs, wash immediately with soap and water. In case of con-tact with eyes, flush immediately with water and contact a physician. SPI Class 4. l B COMPONENT - DANGER! CAUSES (SEVERE) BURHS. Contains alkaline amines strong i sensitizer. Do not get in eyes, on skin, on clothing. Avoid breathing vapor. Keep container closed. Use with adequate ventilation. Wash thoroughly after handling. FIRST AID: IN CASE OF CONTACT, immediately flush eyes or' skin with plenty of water for at least 15 minutes. Remove contaminated clothing and shoes. Call a physician. Wash clothing before reuse. Discard contaminated shoes. MCA WEAR PROTECTIVE CIOfHING, GOGGLES, GLOVES, AND/OR BARRIER CREAMS I I i LYNCHUAST. NEW.JE ASEY 07071 201-933-8001 (NJ) - 212-695-2253 (NY)

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'.h::P rca b ;d of quichots: " triUDer-edick Emset Rug sed atrowel-paced Bihaset lincrtar it O 2 new Sika quicksets-unique, patented accelerator is the trigger Sikaset Plug and Sikaset Mortar are your new breed of quicksets. Job paced swi/tsets, they're like no other on the market. Not just new, they're unique. Not just j different. they're better than anything you've ever used to plug a pressure leak, or pretty-up a pipe for your inspector's ' ayes.' i Sikaset Plugis a new, instant setting, portland-cement seal that stops. water de,ad! It's a ready to-plug .-----.'l I. powder...you bring the water. I g@ Sikaset Mortar is a new. rapid settin'g, portland-i cement patching compound. Add water, mix, go. New ' trigger'is kav The accelerator for your new swiftsets is a new kind of' trigger.'One of a kind. Unique. Patented. Another Sika first! Our organic accelerator eliminates chloride. j sulfate, aluminate, the common accelerators that gave \\ you fast set...at the expense of durability. \\ .q With your new Sikaset quicksets you get great 1, f (' / ' improvement. But what you don't get is also important b./ ...no chloride, no sulfate, no aluminate! / '"h-Sikaset Plug and Sikaset Mortar give you the best 1 /.... 1,/ h eg'd I ( ) 1 2 combo in the swiftset business.You get full-strength portland cement-with all its advantages- ~- plus new long term benefits. 5 great advantages for the applicator b

1. The fastest setting plug in the waterstop business j

... stops water dead on contact. [' A MH -

2. 28-day strengths in 72 hours. Rapid, predictable set-similar to concrete-without flash set.
3. Extended workability for tooling...more time 1,J

' T"gg.'k between initial set up and final' grab.' l g![ q t

4. Cold-water, cold weather cure-uniform setting i

l g' time over wide temperature ranges. i 5.Non toxic, non corrosive,non rusting. !.b).'! 'b. - __ Iil@ And 6 more for owner and engineer ID.I.W.' 3 f4M EIM

1. Greater durability for longer service life.

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2. Excellent resistance to freeze / thaw attack.
3. Superior sulfate resistance-you can specify for i

sulfate saturated soils, water treatment / sewage plants.

4. Rapid gain of tensile strength to resist cracking.
5. 'No cal' compounds give you the benefits designed and paid for.
6. Meets specs...already in use in concrete pipe plants, utility installations.

1 9" 1YricAt s. COMPRt$1tVI STRINGTH $1X A$ti PlyC g; 7 CAIN 1 y 6-Ih sl AAst! MORTAA =e uno no ,) u s. w g cy neme nmu. p,. i l 5 16 1 2 3 4 7s 7,8 rwr d nnes nur me,1

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ens-up concrete.

O SlKASET Pl.UG SlKASET MORTAR A!! new...not another'me too'. A great leak-stopper. DESCRIPil01V No' flash set'. No high heat build up. Your plu s are c:hesive enough to dam the leak, stay pliable or nice To give'you greater quickset capability versatility, w;rkability. You can get as fast as a 90 second set. Sika offers you its all new Sikaset Mortar. A ready-to-And you get more than instant pressure leak stoppage use powder. Add water...get high strength mortar -great ultimate strengths; better freeze / thaw that sets within 10 minutes. Enough time to work into resistance: superior sulfate resistance. coves, patch spalls, and touch-up your precast pieces. Sikaset Mortar, of course, contains no chloride, no WHERE10 USE sulfate, no aluminate...its rapid set is due to Sika's Use Sikaset Plug to stop pressure leakage and new, exclusiv s organic accelerator. It cures with se:page through concrete. brick, stucco. Great for minimum volume change. s;wers, utility manholes, plant basements, sumps, el2vator pits, pools, tunnels. Vertical or horizontal. WHERE10 USE Indoors or out. Use Sikaset Mortar to get low. shrink masonry repairs SPEC /USE SlKASET PLUG and to pate,h, concrete bri,ck, and stucco in industrial Fcst... without / lash-sets at twice the speed of plants utilities precast pipe plants. Fine for basements. sumps. elevator pits, pools, tunnels, c:nventional quicksets. Stops leakage and seepage, sewers. Surfaces may be vertical or horizontal. Dry. Pronto. Unlike competitive compounds that crumble with handling. Sikaset Plug does not flash set... damp, wet. Indoors or out. plugs may be tooled and struck off without reducing SPEC /USE SINASET MORTAR tenacious adhesion. Trowel-paced set-slower than Sikaset Plug-plus all E:sy, e//ective-plugs are cohesive...stop leaks the advantages of workability, high strength, durability. I while still soft and wet katte, with early holding poiver. Reduced shrinkage, too. old weather use-if your mix water drops to a cool , you still get swift set...even at ambient Shrinkage eratures as low as 35F. The graph below illustrates drying shrinkage as a Re uces water-Sikaset Plug features an outstanding percent of control. Test was based on ASTM w:ter reducer...you get improved long term qualitative norms: ch:racteristics. 150 Krsatile-Plug with Sikaset Plug...you know your g 140 88""*8" 7 9 puis lerk stopfate soils and water.per will not deteriorate on exposure even to =g130 high su. jg7 Sulfate resistance test y,17 E$ a ASTM test, applied equally to new Sikaset Plug and a E 8 30 l j c:mmercially available material, produced these a l g results: 3 7 14 TiMtiN oars 3 7 14 f f ,f Sikanet Mortar has low shrinkare on drying...actually 10*. less than !

  • * ' ~

f plam cement mortar...and Sc".less than competitive material. $1M5tf MORfAR COMPETITOR Tensile stren0th l (cp,%,' K 7,f. Following ASTM C 496 procedure, tensile splitting %O tests were conducted and the following results were obta,ned: i Tested in accordance wHh ASTM.C4sJi A louahrative exammanoni, a 2.m. cube of commercially available quickneuing plug completely dis

  • E 1000

- $PUTTINC f tN11t! V1 flME A31M C.496 mtegrated. Sakaset Plug showed oncellent resistance to sulfate attack; l 800 - W/C RAfl0 0.30 Cahibited nri signs of detenoration. gu g, '" ~ g;jggggy l Freere/ thaw resistance test c:M MORTAR } One of the most damaging attacks on concrete and E$ d2 " m:sonry is repeated freeze / thaw. Here's how Sikaset S 200 -v COMrtfiftvt Plug and a competitive product stood up to an even g 100 COMPOUND more severe test: rapid freeze / thaw cycles: I 2 3 flMtIN HOUns 1 10 20 . gg Sikaset Mortar erhibits twice the tensile strength nf a competitive tiuick. [ set. This early clevelopment of high tensiiu strength given you a stronger ' e. '

  • patch with bettur e.irly
  • grabbing' power and reduced crackmg.

( i) l3 4.,, jj j f._.J, sie' nue For your convenience wtion ordering-COMnm0R w~t i.e.er f.i i.iy n..~ u ti-mi ume cemi-und. The c m,.

r. m n<nt nin,a ene m ilue ru mi.,o<...in n,i m c.

.num cwondo c",0l,',';2',;;",f,%.",f' c,00g,'gl,;V,fy'"' a * *""' ca'*"- Oy ntal"'l,'"%'lCi J'"JI iu'"w"Ot" " ' * * ' " " " " * ' " " " Sikasei543.riuo Sikasei s44. Mortar

l l i 1 S m...eet Sw. tsets n j "U'"' i SikasetPlug STaaset Monar Yield (per 20lb) 360 cu in.of hardened compound Packag ng 4 20.lb. SO ID pails:3SO.lb drums p f,g g,;y;gg,,, shelflife I year...but you must keep matenal dry ).e* i.kG(p ,, g. ..;,,g;.

  • fyit ' 'Jk
  • tp'3.

4 Jot >peoed set I to J minutes

  • l 3 to 10 minutes' b"

, MfiD}d i l Mining Mas qu4tset with sufficient clean water to obtain p g.g g{g,;,,ggd g;t 3 l consiste ecy destrod. Do not over. mix. Do not over. wet. W [ '

  • ,"M 1

Do no; tetemper. i Isurtaos Nottung complicated...Just crup away solt. detenorated. I'D 3 M' ids. Properation unsound substrate. Clean cavity completely. Lightly g dampen substrate Just enor to application. a.[*, g, Aaf"*'t Plug minor leaks first. Wedge Max with water '*N@ t M.N IM **(8 t N ) plug firmly into crack or hole. to v erkable tre ( For targe operungs, form co tststency. compouru'.into a carrot shape. Trowelinto T- @ N T' p' D and when plugis firm. ram at place. Kneed (f))(gggg. $ Hi7tt fl$d into cavity. Hold in place with mio honeycombs i. f, I' 7,l heel of hand. Let go. strike off with rubber. f' flush with surface.** gloved hand." 113(n. 6964f3 i I t*fif' Reseal container. Unused matenal will detenorate NN rapidlyifleft unsealed. IMRtMig @hM F!$ caulson S kaset quicksets contan gnatland cement which is I j i alkaline. l. A.pd contact may irritate skin. Avoed MIMI's '?.918 l direct contact where possible and wash exposed skin in wrj g areas prompdy with water.lf any of the cemenutious m . dew @' gy'. j NgJSf matenal gets into your eyes. rinse immediately and reps.tedly with w.ter. m ven. p: f _ o. n,. /

  1. y

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i pp,.wp %Ilif' m f/ Q:(89 i Sika.First in 1910.First today. r Sika was the first to develop quic kretting compounds. Back in 1910. M.'I'i+Ui*i" Sika's lesA-stopping products 'made it'...they solved problems d'*t'IM I @'8"8 f f# {I' ...like waterproofing Switzerland's e'.ectrified-railroad tuanels. 3 @lY '1

  1. !!4 But our original compounds-and the many materials that 4

ttD+ N9 copied them-often sacrificed long-tem durability to dtvelop fart '"I'W l,l set, a set kicked off by chloride, sulfate, aluminate-based i "f' !W M"' W *t" I l cecelerators. Consequently, the average quickset was often Rr" 1 l inadequate for demanding applications. It could fail after a few kW 18L th": ' *M : I freeze / thaw cycles; exposure to sulfate., caused early disintegration. W% Even today, many popular quicksets on the market still are high 'W'd'une n '* '" 4 m i in aluminates...a chemical, incidentcIly, that must be removed to I'Ma%rl*W* 2 produce sulfate-resistant. Type V ceraent. Quicksets containing ThhdlW5 e 11S C *:F this chemical, therefore, are obviously not your best choice for such . '*tMb't* ""4 i' ' " " ' I projects as water-control facilities, sewage treatment plants, and "'t3

  • maine construction where incidence of sulfate is high. For the

@lhe !N '+ ' ilW) same reason, why patch 6.000-psi concrete pge with a material that dklM'i' ? i"' E "F " ' will disinteg' ate on 3 exp;.sures to sewage water! h"alW Only with Sika, with its new organic accelerator, c'an you get 3M M'3h* i"'t "* * ' quick-abiliti combined with workability and durability. Your best bet is a Sikaset.'Our salesmen, our dealers know their way around quicksetjobs. Ask one...or contact Sika's Technical 'j DrdI " '-

  • ' h*

Service people at 201-933-8809. . j7 I t, i I cli ,3 Siha Chemical Corporation Ae Box 297, Lyndhurst, N.J. 07071 m. c :.. _- -........ ,.: P-.F* = ~~er. r,;.,,---.. r.~ E C C Phone 201-933-8801/ TWX: 710-989-02?P ~~ .cM:.w u. g'8 '"** ** * * ""'" ~ ~ "*-" * ' ~... f c:- S9.7 % e........, r. ~

MEMORANDUM July 28, 1976 { TO: J. O. Booth Q g<103 - - FRON: E. p. CallagMr ~

SUBJECT:

LdUISIANA POWER AND LICHT COMPANY WATERFORD STEAM ELECTRIC STATION 1980 - 1165 MW INSTALLATION - UNIT NO.'3 CONCRETE REPAIRS FOR PLACEMENT 499502 - 105 l Attached is a revised sketch (SK CH-163, Rev.1) detailing the extent l of waterproofing required on the west face of foundation block 10B. Note I that the waterproofing should extend below the effected area or to the l top of the pleistocene whichever is lower. For ease of construction the reglet is to be cut horizontally into the concrete. EJC/11s ,~ cc: A. A. Ferlito A. H. Wern F. C. Liu l R. K. Stampley W. L. Sheehan D. N. Galligan J. W. Seaver I J. C. Saldarini l J. M. Brooks C. J. Lambrakos-H. W. Nelson C. White / E. J. GallagherV I l l e I l I b

Fog CONT SIE wrA OwG'S- ..g - - d -p e WATERPROOFING ) pum WT' [S" $1E JIU n_,wr.ob li o a su erfv

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^e 'a = WATERPR'OQEIMG.DET FOR gff ph[ ',(fjg:7 '.,;rg //rST FACE OF Bl.0M 10 S .. E' .,jJ; 4, 43 is-o HDTA : Abb AN AbbiT100AL 12" 0F 6i roTar.WE wiTH A BE Ab A Fots Nb P/) b COMc. ELAE Au F.bC,Es Anb Pt DES. CAULKL80,._.4 O REGLF CUTIM Q)b SK C H - \\ G>3 PE.') \\ D E T D,, tas

nanaAAE2En July 26, 1976 To: J. O. Booth /B. D. Fowler From: E. . Gallagh

Subject:

WATERFORD SES' UNIT NO. 3 CONCRETE REPAIRS FOR PLACEMENT 499S02-10B The repair procedure for mat placement 10B, section 9.6, deals with waterproofing the repaired area. The extent of the waterproofing should be such that the entire length of the west face of placement 10B be water-proofed using W. R. Grace's bituchene to a depth as shown on the attached sketch. This will require excavating a trench along the side of the foundation mat, preparing the surface and applying the waterproofing membrane according to Ebasco specification LOU-1564.475. An additional 12 inches of the waterproofing membrane with a bead of bit.athene mastic should is installed around all edges. It should be also made clear that the repair of the voids on the west face of placement 103 be made prior to concreting wall placements 565-1A, 499SO4-4A-1 and 499504-SA-1. These walls'are exterior walls located above the voids, . The concrete being used to repair these voids should also be allowed to reach i design strength before these walls are placed. EJG/11 Enclosure cc: A. A. Ferlito (w/ enc 1) A. H. Wern (w/ encl) P. C. Liu (w/ encl) N. Hasan (w/ encl) R. K. Stampley (w/ encl) W. L. Sheehan (w/ encl) D. Calligan (w/ encl) J. W. Seaver (w/ encl) J. C. Salarini (w/ encl) J. M. Brooks (w/ encl) G. J. Lambrakos (w/ encl) H. W. Nelson (w/ enc 1),y C. White (w/ encl) V E. J. Gallagher (w/ enc 1) G ,n

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...:~<.,. ...... p.;...c.L... - ) u .~..v d.. WEST FACE OF. BLOC.K \\0 B_ 3 :* t; i _+. i'- o - f 1 3 F_0TE: ADD An Abb1TioWAL 12" oF I 'BITUTliENE WITH A SEAD 0F b^ASTIC x .REGLET Aeouwd Au EbGES AMb PLPES. CUT IN CDMC,' CAULKINCv.. i ir 4 $e & 19 ~~ "D E T D t .}}

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