Bridge Repair and Rehabilitation
Rapid Setting Low Permeability Bridge Deck Overlays Chris Davis April 23, 2014 NBPPC
Introduction LMC Overlays have been used since 1969 to improve, protect and preserve bridges. Due to increased traffic, the time allowed for bridge repairs has been greatly reduced. LMC overlays using a very early hardening cement has been used since 1995(LMC-VE).
Rt 80
Freeway Drive
Rt 46
Queen Anne Rd
Lyons Ave
Red Hill Road
Procedure LMC Overlay Install concrete barriers and traffic control Mill deck Repair Deck Shotblast / Waterblast deck Place overlay Cure 48 hours wet, 48 hours dry Remove all traffic protection
Procedure LMC-VE Overlay
Close lane at 9 pm Mill deck Repair deck (if necessary) Shotblast / Waterblast deck Place LMC-VE 2am-3am Cure LMC-VE 3am-6am Open lane 6am
Milling
Shotblast
Hydro Demolition
Surface Prep
Surface Prep
Surface Prep
Surface Prep
Surface Prep
Calibration
Palisades Parkway
Palisades Parkway
Palisades Parkway
Palisades Parkway
NYC Bus Terminal
NYC Bus Terminal
NYC Bus Terminal
NYC Bus Terminal
NYC Bus Terminal
NYC Bus Terminal
NYC Bus Terminal
Theo Roosevelt Bridge
Theo Roosevelt Bridge
Theo Roosevelt Bridge
Theo Roosevelt Bridge
Theo Roosevelt Bridge
Theo Roosevelt Bridge
West Va
West Va
West Va
West Va
West Va
West Va
Pittsburg
Pittsburg
Pittsburg
Pittsburg
Pittsburg
Pulaski Skyway
Pulaski Skyway
Pulaski Skyway
Pulaski Skyway
Pulaski Skyway
Pulaski Skyway
Pulaski Skyway
Pulaski Skyway
Pulaski Skyway
Low P FA 1 Since 2009 there have been overlays installed using a polymer modified cement concrete. It gains strength quickly It has the same properties as LMC-VE but does not require liquid latex.
Properties Strength Date
Matl
Temp
Slump Air
4 Hr
7 Day
28 Dy
3/29/ 12
Low P FA1
63
8
4565
7210
7650
4975
7270
8620
4910
6770
7670
5040
6790
7340
4/10/ 12
Low P FA1
64
7.5
3.9
5.8
Properties Permeability Shrinkage Date
Matl
Age
Coulombs
Avg
3/29/12
Low P FA1
28
1170
1060
949 Shrinkage% Age 3/29/12
Low P FA1
(Days)
7
14
28
-0.022
-0.027
-0.036
Rt 95 Foxboro
Rt 95 Foxboro
Rt 95 Foxboro
Rt 95 Foxboro
Rt 95 Foxboro
Rt 95 Foxboro
Rt 495 Norton
Rt 495 Norton
Rt 495 Norton
Rt 495 Norton
Rt 495 Norton
Rt 495 Norton
Acknowledgements Michael Sprinkel,P.E., Virginia Center for Transportation Innovation and Research Jacques Bertrand, Ambex Industries
Questions?
Introduction LMC Overlays have been used since 1969 to improve, protect and preserve bridges. Due to increased traffic, the time allowed for bridge repairs has been greatly reduced. LMC overlays using a very early hardening cement has been used since 1995(LMC-VE).
Rt 80
Freeway Drive
Rt 46
Queen Anne Rd
Lyons Ave
Red Hill Road
Procedure LMC Overlay Install concrete barriers and traffic control Mill deck Repair Deck Shotblast / Waterblast deck Place overlay Cure 48 hours wet, 48 hours dry Remove all traffic protection
Procedure LMC-VE Overlay
Close lane at 9 pm Mill deck Repair deck (if necessary) Shotblast / Waterblast deck Place LMC-VE 2am-3am Cure LMC-VE 3am-6am Open lane 6am
Milling
Shotblast
Hydro Demolition
Surface Prep
Surface Prep
Surface Prep
Surface Prep
Surface Prep
Calibration
Palisades Parkway
Palisades Parkway
Palisades Parkway
Palisades Parkway
NYC Bus Terminal
NYC Bus Terminal
NYC Bus Terminal
NYC Bus Terminal
NYC Bus Terminal
NYC Bus Terminal
NYC Bus Terminal
Theo Roosevelt Bridge
Theo Roosevelt Bridge
Theo Roosevelt Bridge
Theo Roosevelt Bridge
Theo Roosevelt Bridge
Theo Roosevelt Bridge
West Va
West Va
West Va
West Va
West Va
West Va
Pittsburg
Pittsburg
Pittsburg
Pittsburg
Pittsburg
Pulaski Skyway
Pulaski Skyway
Pulaski Skyway
Pulaski Skyway
Pulaski Skyway
Pulaski Skyway
Pulaski Skyway
Pulaski Skyway
Pulaski Skyway
Low P FA 1 Since 2009 there have been overlays installed using a polymer modified cement concrete. It gains strength quickly It has the same properties as LMC-VE but does not require liquid latex.
Properties Strength Date
Matl
Temp
Slump Air
4 Hr
7 Day
28 Dy
3/29/ 12
Low P FA1
63
8
4565
7210
7650
4975
7270
8620
4910
6770
7670
5040
6790
7340
4/10/ 12
Low P FA1
64
7.5
3.9
5.8
Properties Permeability Shrinkage Date
Matl
Age
Coulombs
Avg
3/29/12
Low P FA1
28
1170
1060
949 Shrinkage% Age 3/29/12
Low P FA1
(Days)
7
14
28
-0.022
-0.027
-0.036
Rt 95 Foxboro
Rt 95 Foxboro
Rt 95 Foxboro
Rt 95 Foxboro
Rt 95 Foxboro
Rt 95 Foxboro
Rt 495 Norton
Rt 495 Norton
Rt 495 Norton
Rt 495 Norton
Rt 495 Norton
Rt 495 Norton
Acknowledgements Michael Sprinkel,P.E., Virginia Center for Transportation Innovation and Research Jacques Bertrand, Ambex Industries
Questions?
