PL25_S-10.pdf

16' - 0"16' - 0"16' - 0"16' - 0"

INSIDE FACE IF RESERVOIR

EXTERIOR WALL

FLOOR CONSTRUCTION

JOINT GRID PATTERN (TYP)

CL 20" SQ CONCRETE

COLUMN (TYP)

WATERPROOF

MEMBRANE PATCH OVER

ALL FLOOR JOINTS

REPAIR ALL BOTTOM SLAB

CRACKS PER DETAIL 4/S-10

EXTERIOR WALL

REPAIR ALL BOTTOM

SLAB JOINTS PER

DETAIL 3/S-10

TYPE I - NON-LEAKING CRACKS

FACE OF EXISTING CONCRETE

PATCH VOID FLUSH WITH EPOXY CRACK

BINDER IN ACCORDANCE WITH SPECIFICATION

SECTION 03 01 35 - CONCRETE REPAIRS.

EXISTING CONCRETE

TYPE II - LEAKING CRACKS

(WATERPROOF INJECTION GROUT)

DRILL AND INSTALL INJECTION

POINTS PER MANUFACTURER

RECOMMENDATIONS (TYP)

SEAL CRACK SURFACE PER

MANUFACTURE RECOMMENDATIONS

EXISTING CONCRETE

FACE OF EXISTING CONCRETE

45.00°

EXISTING

FACE OF EXISTING CONCRETE

EXISTING CONSTRUCTION JOINT FILLER

AND SEALANT TO REMAIN

EXISTING CONCRETE

NEW

FACE OF EXISTING CONCRETE

12" WIDE WATERPROOF MEMBRANE PATCH

OVER ALL JOINTS IN MAT SLAB ONLY

EXISTING CONCRETE

EXISTING

REMOVE UNSOUND MATERIALS

BY APPROVED MEANS AND

CLEAN SUBSTRATE

EXISTING CRACK

EXISTING CONCRETE

PROPOSED

SEAL JOINT PER TYPICAL CRACK

REPAIR DETAIL II

EPOXY BONDING AGENT, TYP

EXISTING

CONCRETE

REPAIR MORTAR, SEE

SPECIFICATIONS, (TYP)

SAWCUT AROUND PERIMETER

TO PROVIDE 1/2" MIN MATERIAL

DEPTH

PACK JOINT WITH APPROVED SPONGE RUBBER

OR CORK EXPANSION JOINT MATERIAL AS

REQD BY THE EPOXY AND MORTAR

MANUFACTURER FOR WIDTH OF CRACK

APPLY WATERPROOF INJECTION GROUT PER

TYPICAL CRACK REPAIR DETAIL TYPE II

.1 /2

M

IN

D

E P

T H

EXISTING

FACE OF EXISTING

CONCRETE

EXISTING CONSTRUCTION JOINT

FILLER AND SEALANT TO BE REMOVED

AT THE DIRECTION OF THE

CONTRACTOR OFFICER

EXISTING

CONCRETE

TYPE I - NON-LEAKING CRACKS

FACE OF EXISTING

CONCRETE

EXISTING CONSTRUCTION JOINT.

REMOVE JOINT SEALANT AND

EXPANSION JOINT MATERIAL TO BE

REMOVED AT THE DIRECTION OF THE

CONTRACTOR OFFICER, SEE NOTE 3

PACK JOINT WITH APPROVED SPONGE

RUBBER OR CORK EXPANSION JOINT

MATERIAL

APPLY WATERPROOF INJECTION GROUT PER

TYPICAL CRACK REPAIR DETAIL PER DETAIL 5/S-09

TYPE II - LEAKING CRACKS

(WATERPROOF INJECTION GROUT)

FACE OF EXISTING

CONCRETE

PATCH VOID FLUSH WITH

EPOXY CRACK BINDER,

SEE SPECIFICATION 03 01

PACK JOINT WITH APPROVED SPONGE

RUBBER OR CORK EXPANSION JOINT

MATERIAL

APPLY WATERPROOF INJECTION GROUT PER

TYPICAL CRACK REPAIR TYPE II PER DETAIL 5/S-09

12" WIDE WATERPROOF

MEMBRANE PATCH OVER ALL

JOINTS IN MAT SLAB ONLY

12" WIDE WATERPROOF

MEMBRANE PATCH OVER ALL

JOINTS IN MAT SLAB ONLY

GENERAL NOTES

1. CONCRETE REPAIR WORK SHALL BE PERFORMED PER SPECIFICATION 03 01 35 -

CONCRETE REPAIRS AND THE DETAILS ON THIS SHEET AND SHEET S-09.

2. THE CONTRACTOR IN CONJUNCTION WITH THE ENGINEER, SHALL DETERMINE THE

EXTENT OF CRACKED OR DETERIORATED CONCRETE TO BE REHABILITATED AND/OR

RESURFACED A SUMMARY OF WORK DETAILING QUANTITIES OF BASE BID AND

CONTINGENCY ITEMS SHALL BE SUBMITTED TO THE ENGINEER PRIOR TO

COMMENCEMENT OF THE WORK.

3. EXISTING MATERIAL IN FLOOR CONSTRUCTION JOINTS HAS BEEN TESTED AND

DETERMINED TO CONTAIN ASBESTOS, THEREFORE, SHALL BE HANDLED AND DISPOSED

IN ACCORDANCE WITH SPECIFICATION SECTION 02 82 13.00 10 - ASBESTOS ABATEMENT.

ANY MATERIAL THAT IS DETERMINED TO BE LEFT IN PLACE SHALL BE COVERED BY A

MEMBRANE PATCH AS INDICATED IN DETAIL 3 AND MARKED IN THE AS-BUILT AS

MATERIAL CONTAINED ASBESTOS LEFT IN PLACE.

4. FOR PAYMENT PURPOSES, THE WIDTH OF CONSTRUCTION JOINT REPAIR SHALL BE

LIMITED TO 4 INCHES MAXIMUM MEASURED EITHER WAY FROM THE CENTERLINE OF THE

JOINT. DETERIORATED CONCRETE AT A JOINT WIDER THAN 4 INCHES SHALL BE PAID AS

A SPALL REPAIR.

5. BEFORE COMMENCEMENT OF ANY CONCRETE REPAIR WORK CONTRACTOR SHALL

WATERBLAST DETERIORATED AREAS WITH PRESSURE NOT TO EXCEED 2500 PSI TO

REMOVE RESIDUAL LIME, SEDIMENT DEPOSIT AND BIOFILM FROM INTERIOR WALL

SURFACES AS DIRECTED BY THE GOVERNMENT. SEE SPECIFICATION 03 01 35 -

CONCRETE REPAIRS.

6. ALL SEDIMENT AND WASHWATER REMOVED DURING BLASTING AND CLEANING

OPERATIONS SHALL BE CONTAINED, COLLECTED, AND PROPERLY DISPOSED OF BY THE

CONTRACTOR IN COMPLIANCE WITH THE APPLICABLE PERMIT CONDITIONS.

7. TYPE II WATERPROOF CRACKS REQUIRE INJECTION GROUTING WHEN A CRACK IS

VISIBLY WET OR LEAKING.

8. FOR OVERHEAD CRACKS REQUIRING INJECTION GROUTING, CONTRACTOR SHALL PLACE

INJECTION PORTS ALONG CRACK AND SEAL THE SURFACE CRACK PRIOR TO INJECTING

THE GROUT PER MANUFACTURER RECOMMENDATIONS.

9. CONTRACTOR SHALL FIELD LOCATE ALL EXPANSION JOINTS AND MARK THEM IN THE AS-

BUILT.

10. ALL CONSTRUCTION JOINTS IN NEED OF REPAIR SHALL BE DRY FOR PROPER SEALING

WITH FLEXIBLE MEMBRANE PATCH. ANY LEAKING JOINT WILL REQUIRE REMOVAL OF THE

EXISTING MATERIAL AND REPLACEMENT WITH HYDROPHILIC GROUT.

11. IT HAS BEEN DETERMINED THAT THE RESERVOIR HAS INFILTRATION WHEN IT IS EMPTY.

THE CONTRACTOR SHALL ASSUME WET WORKING CONDITIONS INSIDE THE RESERVOIR.

Nova Consulting

REV DATE DESCRIPTION BY

U.S. ARMY ENGINEER DISTRICT, BALTIMORE

WASHINGTON AQUEDUCT

WASHINGTON, DC

SCALE: DATE:

DRAWING NUMBER PLATE

SHEET:

CORPS OF ENGINEERS

BALTIMORE, MARYLAND

SECOND HIGH RESERVOIR

MAINTENANCE AND IMPROVEMENTS

APPROVED:

A/E PRINCIPAL

SEAL:

MARCH 2022

80.2-2.7-.

US Army Corps of Engineers

STEVEN S. EAGLE, PE

S-10

CONCRETE AND JOINT REPAIR

DETAILS II

STRUCTURAL

NTS

5/2022 AMENDMENT 0002 SSE

1/8" = 1'-0"S-10

1 TYPICAL BOTTOM REPAIR PLAN REPAIRS

NTSS-10

5 TYPICAL CRACK REPAIR DETAIL

NTSS-10

3 CONSTRUCTION JOINT REPAIR AT MAT SLAB DETAIL

NTSS-10

2 CRACK REPAIR AT MAT SLAB DETAIL

NTSS-10

4 CONSTRUCTION JOINT REPAIR AT CEILING AND WALL

0 8 16

SCALE: 1/8" = 1'-0"

CONCRETE REPAIRS TABLE

PAY

ITEM DESCRIPTION

BASE BID

ITEM

OPTIONAL

BID ITEM

JOINT REPAIR

QTY (LF)

JOINT REPAIR

REFERENCE

STRUCT CRACK

REPAIR QTY (LF)

STRUCT CRACK

REPAIR REFERENCE

WATERPROOF MEMB

PATCH QTY (LF)

WATERPROOF MEMB

PATCH REFERENCE

WATERPROOF INJ ECTION

GROUT QTY (LF)

WATERPROOF INJECTION

GROUT REFERENCE

SURFACE SPALL

REPAIR QTY (CF)

SURFACE SPALL

REPAIR REFERENCE

FORMED SPALL

REPAIR QTY (CF)

FORMED SPALL

REPAIR REFERENCE

004 EXPANSION / CONSTRUCTION JOINT WITHOUT WATER PROOF INJECTION GROUTING X 14,000 4/S-10 ; 4/S-09 14,000 4/S-10 ; 4/S-09

005 EXPANSION / CONSTRUCTION JOINT WITH WATER PROOF INJECTION GROUTING X 6,000 4/S-10 ; 4/S-09 6,000 4/S-10 ; 4/S-09 6,000 5/S-10

007 CEILING REPAIR USING STRUCTURAL CRACK MATERIAL X 4,000 5/S-10

008 CRACKS REPAIRS WITH WATER PROOF INJECTION GROUTING X 500 5/S-10

010 WALL AND FLOOR SLAB REPAIR USING STRUCTURAL CRACK MATERIAL X 1,000 5/S-10 ; 2/S-10

011 WALL AND SLAB JOINT REPAIR WITH WATERPROOF INJECTION GROUT X 500 4/S-09 500 4/S-09

012 SPALL REPAIR X 50 2/S-09

013 SPALL REPAIR USING FORMED REPAIR METHOD X 30 3/S-09

014 MAT SLAB JOINT REPAIR WITH WATER PROOF MEMBRANE X 5,000 3/S-10

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