9 ATTACHMENT 2 FOUNDATION CRACK REPAIR Updated.pdf

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Attached to
Great Lakes Environmental Research Laboratory (GLERL), Lake Michigan Field Station (LMFS), Building 1 Repair Project
Solicitation number
1305M323RNRMA0028
Issued by

About this file

This document package includes construction drawings and specifications for foundation crack repair work at a federal research facility. The drawings show existing conditions and call out required concrete repairs to basement walls and floor slabs. Repairs include removing unsound concrete, installing additional reinforcing as needed, and applying waterproofing. The specifications provide notes on concrete mix designs, reinforcement details, and waterproofing requirements. Sheet indexes and views are included. The related federal contract opportunity is for repair work at the Great Lakes Environmental Research Laboratory Lake Michigan Field Station Building 1 in Michigan. The solicitation number and agency information are provided.

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±52'-0" (F.V.)

NORTH

SCALE: 1/4" = 1'-0"

ALTERNATE #1: FDN. DRAINS

AND SUMP PIT AROUND

PERIMETER OF BUILDING

BASEMENT FOUNDATION PLAN

'-0

(F

.V

±7'-0"

EXIST. CONC.

PILASTER

S201

S201

S201

S201

NOTE: THE REQUIRED REPAIRS NOTED IN THESE

DRAWINGS MAY NOT BE COMPREHENSIVE. ALL

WALLS SHOULD BE FULLY EXPOSED AND EXAMINED

ON BOTH SIDES TO DETERMINE IF ADDITIONAL REPAIRS

ARE REQUIRED, USING THE APPROPRIATE DETAILS.

EXIST. 6" SLAB-ON-GRADE

SLAB-ON-GRADE REPAIR: ALL NEW SLAB

CONCRETE TO BE 4000 PSI & SHALL

CONTAIN XYPEX C-SERIES ADMIXTURE (OR

APPROVED EQUAL) WITH DOSAGE PER

MANUFACTURERS SPECIFICATIONS.

OPTION 1: TOP EXIST. SLAB W/24" CONC.

W/ 35 LB/CYD STEEL FIBER & 1 LB/CYD

SYNTHETIC FIBER PER DETAIL 1/S301

OPTION 2: TOP EXIST. SLAB W/ 16" CONC.

W/ #5 BARS @ 12" O.C. EA. WAY TOP &

BOTTOM, DOWEL INTO EXISTING

FOUNDATION WALL PER DETAIL 2/S301

OPTION 3: DEMO EXISTING SLAB, EXCAVATE

DOWN AND ADD NEW 36" CONC. SLAB W/

35 LB/CYD STEEL FIBER & 1 LB/CYD

SYNTHETIC FIBER PER DETAIL 3/S301

APPLY WATERPROOFING

MEMBRANE TO EXIST. FDN.

WALL, TYP. ALL EXTERIOR WALLS

S301

TYP.

S301

TYP.

ALTERNATE #1: SUMP

W/ SAND FILTER

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SHEET NO.

S101

CONCRETE REPAIR NOTES

1. ALL CONCRETE HAS BEEN DESIGNED AND SHALL BE BUILT IN ACCORDANCE WITH THE LATEST

EDITION OF ACI 318.

2. ALL NEW FLOOR SLAB CONCRETE TO HAVE A 28-DAY COMPRESSIVE STRENGTH OF 4000 PSI.

CONCRETE SHALL CONTAIN XYPEX CONCRETE ADDITIVE OR APPROVED EQUAL WITH DOSAGE

PER MANUFACTURERS SPECIFICATIONS.

3. EXISTING LOOSE CONCRETE SHALL BE REMOVED TO SOUND MATERIAL. PRECAUTIONS SHALL

BE TAKEN SUCH THAT THE EXISTING CONCRETE THAT IS TO REMAIN IN PLACE IS NOT

DAMAGED (CRACKS, SPLITS, FURTHER REBAR DAMAGE, ETC.)

4. THE EXISTING REBAR SHALL BE LEFT IN PLACE. THE CONCRETE SURROUNDING THE REBAR

SHALL BE REMOVED TO AN EXTENT THAT THERE WILL BE 1" MIN. CLEARANCE BETWEEN THE

REBAR AND REMAINING CONCRETE.

5. THE EXPOSED EXISTING REINFORCING STEEL SHALL BE THOROUGHLY CLEANED PRIOR TO

PLACEMENT OF THE BONDING AGENT AND THE NEW MORTAR. THE REINFORCING SHALL BE

CLEANED WITH A WIRE BRUSH UNTIL NO OLD CONCRETE REMAINS AND THE STEEL IS FREE OF

ANY DUST, LOOSE CONCRETE, OIL, RUST, CORROSION, ETC.

6. ALL EXPOSED REBAR SHALL BE SPRAYED WITH A CORROSION INHIBITOR.

7. THE EXISTING SURFACE OF THE CONCRETE REMAINING, AGAINST WHICH NEW CONCRETE WILL

BE PLACED, SHALL BE ROUGHENED TO A MINIMUM OF 14" AMPLITUDE.A BONDING AGENT

SHALL BE APPLIED TO THE SURFACE OF THE EXISTING CONCRETE PRIOR TO PLACEMENT OF

THE NEW CONCRETE.

8. CONCRETE REMOVAL MUST BE CARRIED OUT ALONG CORRODED EXPOSED BARS UNTIL A

CONTINUOUS LENGTH OF AT LEAST 3" OF BAR FREE FROM CORROSION IS EXPOSED.

9. CONCRETE REPAIR MORTAR SHALL BE MASTEREMACO N400 RS, MASTEREMACO S466 CI, OR

APPROVED EQUAL.

10. THE USE OF CHLORIDE ACCELERATORS IN ANY CONCRETE MIX DESIGN IS NOT PERMITTED.

11. ALL REINFORCING BARS TO BE ASTM A615 GRADE 60, DEFORMED AND ALL WELDED WIRE

FABRIC TO BE ASTM A185. ALL REINFORCING TO BE PLACED IN ACCORDANCE WITH THE

LATEST EDITION OF ACI 318 AND CRSI SPECIFICATIONS.

12. THE WELDING OF REINFORCING STEEL BARS IS NOT PERMITTED, INCLUDING BUT NOT LIMITED

TO TACKWELDS, BUTT WELDS, GROOVE WELDS, ETC.

13. ALL NEW CONCRETE SHALL BE CURED IMMEDIATELY AFTER FINISHING OF REMOVING

FORMWORK. CURING SHALL BE EITHER A MOIST CURE METHOD OR THE USE OF A CURING

COMPOUND.

14. ALL FILL REQUIRED SHALL BE COMPACTED AND TESTED TO A MINIMUM OF 95% OF ITS

MAXIMUM DENSITY AS DETERMINED BY ASTM D1557

GENERAL NOTES

1. ALL APPLICABLE LOCAL, STATE AND FEDERAL RULES, REGULATIONS, ORDINANCES AND CODES

SHALL APPLY THROUGHOUT THE PROJECT.

2. VERIFY ALL APPLICABLE EXISTING DIMENSIONS, ELEVATIONS, AND CONDITIONS PRIOR TO

FABRICATION AND CONSTRUCTION

3. IF THE EXISTING CONDITIONS DIFFER FROM WHAT IS SHOWN ON THE DESIGN DRAWINGS, NOTIFY

SOILS AND STRUCTURES IMMEDIATELY SO THAT THE DESIGN MAY BE PROPERLY MODIFIED.

4. ALL SPECIAL INSPECTIONS AND STRUCTURAL TESTS SHALL BE PERFORMED IN ACCORDANCE

WITH CHAPTER 17 OF THE 2015 MICHIGAN BUILDING CODE.

5. DO NOT SCALE DRAWINGS.

6. ALL INDICATED STRUCTURAL ELEVATIONS ARE BASED ON THE EXISTING BASEMENT FLOOR

FINISHED TOP SURFACE ELEVATION OF 100'-0".

7. REPRODUCTIONS OF CONTRACT STRUCTURAL DRAWINGS SHALL NOT BE USED FOR SHOP

DRAWINGS. ELECTRONIC FILES ARE NOT AVAILABLE FOR USE BY SUBCONTRACTORS

8. REPAIR CONDITIONS NOT SPECIFICALLY DETAILED OR INDICATED SHALL BE REPAIRED SIMILAR TO

DETAILS SHOWN FOR THE RESPECTIVE MATERIAL OR CONDITION.

9. NO OPENINGS SHALL PENETRATE STRUCTURAL ELEMENTS WITHOUT THE ENGINEER OF RECORD'S

APPROVAL.

10. THE CONTRACTOR IS RESPONSIBLE FOR ADEQUATELY SHORING, UNDERPINNING, SHEET PILING, ETC. AGAINST EXISTING STRUCTURES AS REQUIRED SO THEY ARE NOT DAMAGED DURING

CONSTRUCTION. THIS SHALL ALSO INCLUDE ANY CONSTRUCTION LOADS.

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CONCRETE

REINFORCING STEEL

LAP SPLICES

SIZE TOP BARS OTHER BARS

#3 24" 21"

#4 33" 27"

#5 42" 33"

#6 51" 39"

#7 72" 54"

#8 81" 63"

#9 93" 72"

#10 102" 81"

#11 114" 87"

SCALE: 1/2" = 1'-0"S101

1 NORTH WALL ELEVATION

EXIST. BASEMENT FLOOR

SLAB ON GRADE

EXIST. CONC. PILASTER

T.O. WALL

EXIST. F.F.

EXIST. WALL PIPE

PENETRATION, TYP.

EXIST. WINDOW

OPENING, TYP.

100'-0"

SEE DETAIL 4/S301

SEE DETAIL 4/S301 SEE DETAIL 4/S301

SEE DETAIL 6/S301

SCALE: 1/2" = 1'-0"S101

2 SOUTH WALL ELEVATION

BASEMENT FLOOR SLAB

EXIST. CONC. PILASTER

EXIST. WALL PIPE

PENETRATION, TYP.

EXIST. WINDOW

OPENING, TYP.

T.O. WALL

EXIST. F.F.

100'-0"

PATCH 10" Ø

AROUND PIPES,

SEE DETAIL 7/S301

SEE DETAIL 5/S301 SEE DETAIL 4/S301

SEE DETAIL 4/S301

SEE DETAIL 4/S301

SEE DETAIL

4/S301

SCALE: 1/2" = 1'-0"S101

3 WEST WALL ELEVATION

BASEMENT FLOOR SLAB

EXIST. WINDOW

OPENING, TYP.

T.O. WALL

EXIST. F.F.

100'-0"

SEE DETAIL 7/S301

SEE DETAIL 4/S301,

WRAPS TO N. WALL

SEE DETAIL 4/S301

SEE DETAIL 5/S301

SCALE: 1/2" = 1'-0"S101

4 EAST WALL ELEVATION

BASEMENT FLOOR SLAB

EXIST. STAIRS

EXIST. WINDOW

OPENING, TYP.

EXIST. WALL PIPE

PENETRATION, TYP.

T.O. WALL

EXIST. F.F.

100'-0"

SEE DETAIL 4/S301, TYP.

SEE DETAIL 4/S301

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SHEET NO.

S201

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EXIST. 6" CONC. SLAB

NEW 24" CONC. SLAB

W/ NO CONTROL JOINTS

CONT. WESTEC 581

RETROFIT WATERSTOP

OR APPROVED EQUAL

EXIST. FDN. WALL

SCALE: 3/4" = 1'-0"S101

1 FLOOR SLAB REPAIR #1

'-0

THIN LAYER OF SAND

FOR BOND BREAKER

100'-0"

EXIST. F.F.

102'-0"

NEW F.F.

EXIST. 6" CONC. SLAB

NEW 16" CONC. SLAB W/

#5 BARS @ 12" O.C. EA. WAY

T&B, NO CONTROL JOINTS

CONT. WESTEC 581 RETROFIT

WATERSTOP OR APPROVED EQUAL

EXIST. FDN. WALL

SCALE: 3/4" = 1'-0"S101

2 FLOOR SLAB REPAIR #2

'-4

THIN LAYER OF SAND

FOR BOND BREAKER

100'-0"

EXIST. F.F.

101'-4"

NEW F.F.

6"

#4 X 12" LONG DOWELS @ 12" O.C.

CENTERED IN NEW SLAB, EMBED.

6" INTO EXIST. FDN. WALL USING

HILTI HIT-HY 200 EPOXY

C L R

C

L R

10 MIL VAPOR

BARRIERCOMPACT EXIST.

SUBGRADE

NEW 36" CONCRETE SLAB

W/ NO CONTROL JOINTS.

VERIFY NO INTERFERANCE

W/ EXIST. FOOTING

SCALE: 3/4" = 1'-0"S101

3 FLOOR SLAB REPAIR #3

'-0

CONT. WESTEC 581

RETROFIT WATERSTOP

OR APPROVED EQUAL

EXIST. FDN. WALL

100'-0"

NEW F.F.

REMOVE EXISTING CONCRETE

SUCH THAT THE EXISTING

STEEL REBAR IS NOT DAMAGED

SOUND CONCRETE

EXISTING CONCRETE SURFACES MUST BE

ROUGHENED TO MIN. 14"AMPLITUDE AND

BONDING AGENT APPLIED

PRIOR TO NEW CONCRETE BEING PLACED

2" TO 11

2" DEPTH

REMOVE LOOSE CONCRETE AND

REPLACE WITH NEW

CONCRETE REPAIR MORTAR

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WALL REPAIR DETAIL #2

S201

EXISTING REINF. BARS

EXISTING CONCRETE SHALL BE

REMOVED TO SOUND CONCRETE.

REMOVE EXISTING CONCRETE

SUCH THAT THE EXISTING

STEEL REBAR IS NOT DAMAGED

SOUND CONCRETE.

SCALE: NTS

S201

2" CLR. TYP.

EXISTING CONCRETE SURFACES MUST BE

ROUGHENED TO MIN. 14"AMPLITUDE AND

BONDING AGENT APPLIED PRIOR TO

NEW CONCRETE BEING PLACED

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ADDITIONAL HORIZONTAL REBAR REQUIRED

IF CORROSION HAS REDUCED HORIZ. BAR

AREA BY 10%, REFER TO DET. 8/S301 SIM.

WALL REPAIR DETAIL #4

EXISTING CONCRETE SHALL BE

REMOVED TO SOUND CONCRETE.

EXISTING REINF. BARS

ADDITIONAL VERTICAL REBAR REQUIRED

IF CORROSION HAS REDUCED VERT. BAR

AREA, REFER TO DET. 9/S301 SIM.

CONCRETE REPAIR MORTAR

SEE CONC. REPAIR NOTES ON

S101 FOR REBAR PREPERATION

NEW VERT. BAR, SIZE &

SPACING TO MATCH EXIST.

SCALE: NTS

ADDITIONAL VERTICAL REBAR DETAIL9

S301

REMOVE CONC. AT LEAST

1" AROUND SPLICE

WIRE BARS TOGETHER FOR FULL

CONTACT OF TOTAL SPLICE LENGTH

ADDITIONAL REBAR REQUIRED IF

EXISTING REBAR IF CORROSION HAS

REDUCED BAR AREA BY 10%

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B A

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ORIGINAL

BAR SIZE

ADD'L BAR

ALTERNATE

ADD'L BARS

#3 (1) #3, X=24" --

#4 (1) #4, X=33" (2) #3, X=24"

#5 (1) #5, X=42" (2) #4, X=33"

#6 (1) #6, X=51" (2) #5, X=42"

SCALE: NTS

WALL REPAIR DETAIL #1 & BUGHOLE REPAIR

S201

HAIRLINE CRACK IN

CONC. WALL NOT

GREATER THAN 14" WIDE

CONC. WALL BUG HOLE OR

HOLE FROM OLD ANCHOR

GREATER THAN 12" Ø

CLEAN AND DRY CRACKS AND

HOLES, FILL COMPLETELY W/

A POLYMER MODIFIED

STRUCTURAL REPAIR MORTAR

DRILL HOLE AT END OF

CRACK W/ 38" Ø DRILL

BIT, DRILL AS DEEP AS

CRACK OR 4" MAX. TYP.

REMOVE EXISTING CONCRETE

SUCH THAT THE EXISTING

STEEL REBAR IS NOT DAMAGED

SOUND CONCRETE

SCALE: NTS

S201

EXISTING CONCRETE SURFACES MUST BE

ROUGHENED TO MIN. 14"AMPLITUDE AND

BONDING AGENT APPLIED PRIOR TO

NEW CONCRETE BEING PLACED

2" TO 4" DEPTH

CONCRETE REPAIR MORTAR

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SEE CONC. REPAIR

NOTES ON S101 FOR

REBAR PREPERATION

ADDITIONAL HORIZONTAL REBAR REQUIRED

IF CORROSION HAS REDUCED HORIZ. BAR

AREA BY 10%, REFER TO DET. 8/S301

WALL REPAIR DETAIL #3

ADDITIONAL VERTICAL REBAR REQUIRED

IF CORROSION HAS REDUCED VERT. BAR

AREA, REFER TO DET. 9/S301

NOTE:

IF REPAIR DEPTH EXCEEDS

HALF THE WALL THICKNESS

SOILS & STRUCTURES

SHALL BE NOTIFIED SO OUR

DESIGN MAY BE PROPERLY

MODIFIED

EXISTING CONCRETE SHALL BE

REMOVED TO SOUND CONCRETE.

EXISTING REINF. BARS

2" CLR. TYP.

REMOVE EXISTING CONC. AT

LEAST 1" AROUND SPLICE

WIRE BARS TOGETHER FOR FULL

CONTACT OF TOTAL SPLICE LENGTH

REPLACE EXISTING REBAR IF CORROSION

HAS REDUCED BAR AREA BY 50%

SCALE: NTS

ADDITIONAL HORIZONTAL REBAR DETAIL

S301

REDUCED BAR AREA

10"

MIN.

10"

MIN.

REPAIR NOTES:

· IF CRACK DEPTH EXCEEDS LIMITS IN DETAIL

CALLED OUT ON S201, UTILIZE

APPROPRIATE DEPTH REPAIR DETAIL.

· FILL ALL ABANDONED PIPE PENETRATIONS

PER DETAIL 7/S301.

EXIST. FDN. WALL

SCALE: 1/2" = 1'-0"S101

10 WALL WATERPROOFING

GRADE

±104'-0"

GEOTEXTILE FABRIC

DRAINAGE PANEL

ALTERNATE #1: PERIMETER

FDN. DRAIN MIN. 6" BELOW

TOP OF NEW FLOOR SLAB

PER DET. 12/S301

2" XPS INSULATION

BITUTHENE 3000

WATERPROOF MEMBRANE,

INSTALL PER MANUFACTURER

CLOSURE

LIQUID MEMBRANE

BACKFILL

CRUSHED STONE

EXIST. FOOTING

S301

NEW CONC. SLAB, SEE

PLAN FOR REPAIR/

REPLACEMENT OPTIONS

NEW F.F.

EXIST. FOOTING

SCALE: 3/4" = 1'-0"S301

12 FOUNDATION DRAIN

GEOTEXTILE FILTER

FABRIC

1" Ø STONE

ALTERNATE #1

EXIST. FDN. WALL

6" Ø ADS DRAIN TO SUMP

W/ SOCK MIN. 6" BELOW

TOP OF NEW FLOOR SLAB

NEW CONC. SLAB, SEE

PLAN FOR REPAIR/

REPLACEMENT OPTIONS

2'-0"

'-0

M

IN

. NEW F.F.

GROUT CANT

W/ 2" FACE

DRAINAGE PANEL

1" XPS INSULATION

BITUTHENE 3000

WATERPROOF MEMBRANE,

INSTALL PER MANUFACTURER

EXIST. FOOTING

SCALE: 1" = 1'-0"S301

11 FOOTING WATERPROOFING

EXIST. FDN. WALL

LIQUID MEMBRANE

LIQUID MEMBRANE

(COVER LAP EDGE)

BITUTHENE 3000

WATERPROOF MEMBRANE,

INSTALL PER MANUFACTURER

SARNABAR SS W/ 14"

ZAMAC W/ SS PIN.

COVER SARNABAR IN

LIQUID MEMBRANE

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Sheets and Views
S101

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