PURPOSE/FOCUS/ROLE...GOOD BRIDGE – BAD JOINTS 0 50 100 150 200 250 300 350 400 1234567891011...
Transcript of PURPOSE/FOCUS/ROLE...GOOD BRIDGE – BAD JOINTS 0 50 100 150 200 250 300 350 400 1234567891011...
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PURPOSE/FOCUS/ROLE
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TYPES OF WORK
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PEOPLE
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EQUIPMENT
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WORKPLAN DEVELOPMENT! ASSET LEVEL
" Inspection reports! NETWORK LEVEL
" BIIS data! TYPES OF WORK
" Cyclical" Minor repair" Unscheduled" Corrective" Initiatives
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PREVENTIVE MAINTENANCE
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PM in Region 3
0%
10%
20%
30%
40%
1991 1994 1996 1998 2000 2002
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PREVENTIVE MAINTENANCE
% PROGRAM on PM
0%
5%
10%
15%
20%
25%
30%
1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002
YEAR
PE
RCE
NT
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EXPANSION JOINT REPAIR
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JOINT REPAIR - HEADER
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JOINT REPAIR - JOINT
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NHS EXPANSION JOINTSSTATEWIDE TOTAL 2001 YEAR
region # joints # def %def %good
10 158 31 20% 80%1 155 38 25% 75%2 55 29 53% 47%3 180 55 31% 69%4 84 46 55% 45%5 248 48 19% 81%6 71 11 15% 85%7 23 5 22% 78%8 228 87 38% 62%9 202 88 44% 56%11 199 19 10% 90%
STATE 1,603 457 29% 71%
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GOOD BRIDGE – BAD JOINTS
0
50
100
150
200
250
300
350
400
1 2 3 4 5 6 7 8 9 10 11
REGION
JOINTS ON THE NHS - 2002
non-def joints def joints
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% PROGRAM HOURS on JOINTS
0.0%
2.0%
4.0%
6.0%
8.0%
10.0%
12.0%
14.0%
1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002
Year
Perc
ent
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DECK CRACK TYPES " Working cracks" Shrinkage cracks" Map cracks" Deck patching" Transverse cracks
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The DEMONSTRATIONThe DEMONSTRATION
OBJECTIVEOBJECTIVE
# Repair Method# Educate# Evaluate# Discuss
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THE BRIDGETHE BRIDGE
! Built 1998! 4 continuous
spans! 73,300 sq. ft.
deck! $26 M cost! 13,500 AADT
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CONDITIONCONDITION
! Transverse cracks at 4’ spacing
! Cracks continue through 4 lanes, sidewalk, & barrier
! Surface rating 5! Not uncommon
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PROCEDUREPROCEDURE
! Tech-rep present! State forces apply! Evaluate application! Cores taken! Crack analysis! Penetration ! Summary
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PRODUCTSPRODUCTS
Epoxy2 parts – 50 cpsF5
HMWM2 parts – 25 cpsE
Epoxy2 parts – 95 cpsD
4
MMA2 parts – 25 cpsC3
HMWM3 parts – 15 cpsB2
HMWM3 parts – 18 cpsA1
POLYMERPRODUCT NAMEMANUFACTURER
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QUICKQUICK
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QUICKQUICK
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NOT PRACTICALNOT PRACTICAL
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SIMPLESIMPLE
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SAFESAFE
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AVOIDAVOID
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FINISHEDFINISHED
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CORESCORES
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UUUF Epoxy(2 parts)
UUE HMWM(2 parts)
UUUUD Epoxy(2 parts)
UUUUC MMA(2 parts)
UUB HMWM(3 parts)
UUA HMWM
(3 parts)
ODOR“FREE”
FULLPENETRA-
TION
MOISTURE“INSENS-
ITIVE”
ADJUST-ABLE
CURE TIMES
EASE OFAPPLI-CATION
EASE OF
MIXING
PRODUCTNAME
“MAINTENANCE FRIENDLY” CHART
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HMWM MATERIAL PROPERTIES
! Ultra-low viscosity! Bond strength > concrete tensile strength! High or Low modulus of elasticity! Low surface tension! Cure time! Polymerization inhibited by oxygen
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SUMMARYSUMMARY
! All products penetrated ! Lower viscosity went deeper! Some bonding restored! Need to practice caution! Weather sensitive! Has maintenance application
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OTHER APPLICATIONSOTHER APPLICATIONS
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DECK PATCHING - DEMO
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RESULTS
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HMWM TOPICAL APPLICATION
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BROOM & SEED
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continued
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OR WAIT
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FUTURE
! PM Focus! Joint Initiative! Additional Deck
Treatment Trials " Crack filling" Ultra-thin overlays
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