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Publication Number: FHWA-RD-01-168
Date: July 2006

Rehabilitation of Asphalt Concrete Pavements: Initial Evaluation of The SPS-5 Experiment-Final Report

Appendix B. Construction Data Summary

Appendix B contains a summary of the construction data available for each project as of the approximate time of this report, which was 1999-2000. Thickness data were from three sources. The first source was the TST_L05B table, which contained the values most representative of the material that was actually placed on the test section and the pre-existing pavement structure. The second was the SPS5_LAYER table, which included thicknesses that should be the same as those provided in the TST_L05B table. However, in most of the data shown, these thicknesses were not the same. The third source was the SPS5_LAYER_ THICKNESS table. These data were obtained from elevation measurements taken on the projects after the placement of each layer of overlay.

Table 95. Summary of construction data for Alabama.
Alabama (1) 501502503504505506507508509563564
Required Thickness
AC OVERLAY (mm) 051127127515112712751  
MILLING (mm) 0<25.4<25.4<25.4<25.438–5038–5038–5038–50  
L05B Thickness
AC OVERLAY (mm)
MILLING (mm)
SPS Construction Thickness
AC OVERLAY (mm)  331021123676142145813628
Rod & Level
AC OVERLAY (mm)  33100110355212311445 30
MILLING (mm)     2518293536 
Rod & Level Std Dev
AC OVERLAY (mm)  891096745 7
MILLING (mm)      77586 
Rod & Level Min
AC OVERLAY (mm)  188489184110410433 15
MILLING (mm)      103201818 
Rod & Level Max
AC OVERLAY (mm)  51127137566413712258 51
MILLING (mm)      4330415648 
MILLING (mm)      423223253330
Lift Thicknessess
Maximum Lift Thickness<=75mm 41647643648979564638
AC Material Requirements
Hveem stability (minimum 37)Air Voids 3-5 %  3.94.23.63.63.63.64.24.23.63.9
Virgin Mix
Aggregate Pass #4<40%
RAP
TOTAL AC
NEW AC
% AC OF SALVAGED MIX
% NEW AGG.MATERIAL
% RAP
New Aggregate
Aggregate Pass #4 <40%

Note: The number after the state name is the state’s numeric code in the LTPP data base.

Table 96. Summary of construction data for Arizona.
Arizona (4)501502503504505506507508509559560
Required Thickness
AC OVERLAY (mm)051127127515112712751  
MILLING (mm)0<25.4<25.4<25.4<25.438–5038–5038–5038–50  
L05B Thickness
AC OVERLAY (mm) 69119122711321731659915256
MILLING (mm) 23201823486669718623
SPS Construction Thickness
AC OVERLAY (mm) 691191227143104104387656
Rod & Level
AC OVERLAY (mm)
MILLING (mm)
Rod & Level Std Dev
AC OVERLAY (mm)
MILLING (mm)
Rod & Level Min
AC OVERLAY (mm)
MILLING (mm)
Rod & Level Max
AC OVERLAY (mm)
MILLING (mm)
MILLING (mm) 27182733726969649925
Lift Thicknessess
Maximum Lift Thickness<=75mm 647674747481767110966
AC Material Requirements
Hveem stability (minimum 37)
Air Voids 3-5 %
Virgin Mix
Aggregate Pass #4<40% 64  57      
RAP
TOTAL AC
NEW AC
% AC OF SALVAGED MIX
% NEW AGG.MATERIAL
% RAP
New Aggregate
Aggregate Pass #4 <40% 5353     535353

Note: The number after the state name is the state’s numeric code in the LTPP date base.

Table 97. Summary of construction data for California.
California (6) 501502503504505506507508509559560561562563564565566567568569570571
Required Thickness
AC OVERLAY (mm)051127127515112712751             
MILLING (mm)0<25.4<25.4<25.4<25.438–5038–5038–5038–50             
L05B Thickness
AC OVERLAY (mm)467616614691109170168112208109107112102109109109102152183183248
MILLING (mm) 303836304348465176585858586658585858669191
SPS Construction Thickness
AC OVERLAY (mm)467616614591109170114112152109107107102102109109102152183183244
Rod & Level
AC OVERLAY (mm)
MILLING (mm)
Rod & Level Std Dev
AC OVERLAY (mm)
MILLING (mm)
Rod & Level Min
AC OVERLAY (mm)
MILLING (mm)
Rod & Level Max
AC OVERLAY (mm)
MILLING (mm)
MILLING (mm)
Lift Thicknessess
Maximum Lift Thickness<=75mm64691071027181697471122071718189747671157535148
AC Material Requirements
Hveem stability (minimum 37)
Air Voids 3-5 %
Virgin Mix
Aggregate Pass #4<40%
RAP
TOTAL AC
NEW AC
% AC OF SALVAGED MIX
% NEW AGG.MATERIAL
% RAP
New Aggregate
Aggregate Pass #4 <40%484848    48              

Note: The number after the state name is the state’s numeric code in the LTPP date base.

Table 98. Summary of construction data for Colorado.
Colorado(8) 501502503504505506507508509559560
Required Thickness
AC OVERLAY (mm)051127127515112712751  
MILLING (mm)0<25.4<25.4<25.4<25.438–5038–5038–5038–50  
L05B Thickness
AC OVERLAY (mm)339713714781112173201107168155
MILLING (mm)000005151715100
SPS Construction Thickness
AC OVERLAY (mm)33971451478194175201109175157
Rod & Level
AC OVERLAY (mm) 89135154746514913265172151
MILLING (mm)
Rod & Level Std Dev
AC OVERLAY (mm) 13181721281925163020
MILLING (mm)
Rod & Level Min
AC OVERLAY (mm) 669794009702076117
MILLING (mm)
Rod & Level Max
AC OVERLAY (mm) 11219618010910218816897234196
MILLING (mm)
MILLING (mm)     52525552  
Lift Thicknessess
Maximum Lift Thickness<=75mm307989107746471846411464
AC Material Requirements
Hveem stability (minimum 37)
Air Voids 3-5 %
Virgin Mix
Aggregate Pass #4<40%      60 62  
RAP
TOTAL AC
NEW AC
% AC OF SALVAGED MIX
% NEW AGG.MATERIAL
% RAP
New Aggregate
Aggregate Pass #4 <40% 5858    5858  

Note: The number after the state name is the state’s numeric code in the LTPP data base.

Table 99. Summary of construction data for Florida.
Florida (12) 501502503504505506507508509560561562563564565566
Required Thickness
AC OVERLAY (mm)051127127515112712751       
MILLING (mm)0<25.4<25.4<25.4<25.438–5038–5038–5038–50       
L05B Thickness
AC OVERLAY (mm) 641271305176165178107       
MILLING (mm) 38   36  64       
SPS Construction Thickness
AC OVERLAY (mm) 5313512248102168180107       
Rod & Level
AC OVERLAY (mm) 50134123506511111365       
MILLING (mm).... 35556742       
Rod & Level Std Dev
AC OVERLAY (mm) 97844675       
MILLING (mm).... 65410       
Rod & Level Min
AC OVERLAY (mm) 2511210238581029453       
MILLING (mm).... 20466120       
Rod & Level Max
AC OVERLAY (mm) 61150145587412212471       
MILLING (mm).... 43667671       
MILLING (mm) 22 112569627072       
Lift Thicknessess
Maximum Lift Thickness =75mm 3869583881768453       
AC Material Requirements
Hveem stability (minimum 37)
Air Voids 3-5 %
Virgin Mix
Aggregate Pass #4<40%    79 60 69       
RAP
TOTAL AC
NEW AC
% AC OF SALVAGED MIX
% NEW AGG.MATERIAL
% RAP
New Aggregate
Aggregate Pass #4 <40% 7262    6272       

Note: The number after the state name is the state’s numeric code in the LTPP data base.

Table 100. Summary of construction data for Georgia.
Georgia (13) 501502503504505506507508509560561562563564565566567
Required Thickness
AC OVERLAY (mm)051127127515112712751        
MILLING (mm)0<25.4<25.4<25.4<25.438–5038–5038–5038–50        
L05B Thickness
AC OVERLAY (mm) 4113013551107160170975674895658127137 
MILLING (mm) 303841467453535830202576582556 
SPS Construction Thickness
AC OVERLAY (mm) 23127130419916817599        
Rod & Level
AC OVERLAY (mm) 23125128424811912343        
MILLING (mm)
Rod & Level Std Dev
AC OVERLAY (mm) 847941556        
MILLING (mm).... 52474957        
Rod & Level Min
AC OVERLAY (mm) 5119119334310910930        
MILLING (mm).... 71236        
Rod & Level Max
AC OVERLAY (mm) 36132142815818513251        
MILLING (mm).... 4104148        
MILLING (mm)  18273061386541        
Lift Thicknessess
Maximum Lift Thickness =75mm 286458466411411471        
AC Material Requirements
Hveem stability (minimum 37)
Air Voids 3-5 %
Virgin Mix
Aggregate Pass #4<40%      64 66        
RAP
TOTAL AC
NEW AC
% AC OF SALVAGED MIX
% NEW AGG.MATERIAL
% RAP
New Aggregate
Aggregate Pass #4 <40%

Note: The number after the state name is the state’s numeric code in the LTPP data base.

Table 101. Summary of construction data for Maine.
Maine(23) 501502503504505506507508  509559
Required Thickness
AC OVERLAY (mm)051127127515112712751 
MILLING (mm)0<25.4<25.4<25.4<25.438–5038–5038–5038–50 
L05B Thickness
AC OVERLAY (mm) 911401456910419817397 
MILLING (mm)     38433038 
SPS Construction Thickness
AC OVERLAY (mm) 861421426110218317594 
Rod & Level
AC OVERLAY (mm) 91140144695413312152 
MILLING (mm).... 50575243 
Rod & Level Std Dev
AC OVERLAY (mm) 991096665 
MILLING (mm).... 7756 
Rod & Level Min
AC OVERLAY (mm) 76122122514112210736 
MILLING (mm).... 30464130 
Rod & Level Max
AC OVERLAY (mm) 114155165846614514066 
MILLING (mm).... 66766156 
MILLING (mm)     43473738 
Lift Thicknessess
Maximum Lift Thickness<=75mm 6158583858898158 
AC Material Requirements
Hveem stability (minimum 37)
Air Voids 3-5 %
Virgin Mix
Aggregate Pass #4<40%  4552 46524844 
RAP
TOTAL AC
NEW AC
% AC OF SALVAGED MIX
% NEW AGG.MATERIAL
% RAP
New Aggregate
Aggregate Pass #4 <40% 4739    3939 

Note: The number after the state name is the state’s numeric code in the LTPP data base.

Table 102. Summary of construction data for Maryland.
Maryland(24) 501502503504505506507508  509559560561562563
Required Thickness
AC OVERLAY (mm)051127127515112712751     
MILLING (mm)0<25.4<25.4<25.4<25.438–5038–5038–5038–50     
L05B Thickness
AC OVERLAY (mm) 53135135539119116897     
MILLING (mm)     38363638     
SPS Construction Thickness
AC OVERLAY (mm) 53124114519118814089     
Rod & Level
AC OVERLAY (mm) 46124116485510813945     
MILLING (mm)      45 44     
Rod & Level Std Dev
AC OVERLAY (mm) 78965664     
MILLING (mm)      9 8     
Rod & Level Min
AC OVERLAY (mm) 281099736469712733     
MILLING (mm)      33 25     
Rod & Level Max
AC OVERLAY (mm) 58140140646612415051     
MILLING (mm)      71 64     
MILLING (mm)     39393939     
Lift Thicknessess
Maximum Lift Thickness<=75mm 6161666464645764     
AC Material Requirements
Hveem stability (minimum 37)
Air Voids 3-5 %
Virgin Mix
Aggregate Pass #4<40%   4149         
RAP
TOTAL AC
NEW AC
% AC OF SALVAGED MIX
% NEW AGG.MATERIAL
% RAP
New Aggregate
Aggregate Pass #4 <40%

Note: The number after the state name is the state’s numeric code in the LTPP data base.

Table 103. Summary of construction data for Minnesota.
Minnesota (27) 501502503504505506507508509559560561
Required Thickness
AC OVERLAY (mm)051127127515112712751   
MILLING (mm)0<25.4<25.4<25.4<25.438–5038–5038–5038–50   
L05B Thickness
AC OVERLAY (mm) 61  48 142     
MILLING (mm)
SPS Construction Thickness
AC OVERLAY (mm)
Rod & Level
AC OVERLAY (mm)
MILLING (mm)
Rod & Level Std Dev
AC OVERLAY (mm)
MILLING (mm)
Rod & Level Min
AC OVERLAY (mm)
MILLING (mm)
Rod & Level Max
AC OVERLAY (mm)
MILLING (mm)
MILLING (mm)
Lift Thicknessess
Maximum Lift Thickness<=75mm
AC Material Requirements
Hveem stability (minimum 37)
Air Voids 3-5 %
Virgin Mix
Aggregate Pass #4<40%
RAP
TOTAL AC
NEW AC
% AC OF SALVAGED MIX
% NEW AGG.MATERIAL
% RAP
New Aggregate
Aggregate Pass #4 <40%

Note: The number after the state name is the state’s numeric code in the LTPP data base.

Table 104. Summary of construction data for Mississippi.
Mississippi(28)501502503504505506507508509560
Required Thickness
AC OVERLAY (mm)051127127515112712751 
MILLING (mm)0<25.4<25.4<25.4<25.438–5038–5038–5038–50 
L05B Thickness
AC OVERLAY (mm) 5111712451     
MILLING (mm) 0000     
SPS Construction Thickness
AC OVERLAY (mm) 51127127518016516589 
Rod & Level
AC OVERLAY (mm)
MILL REPLACEMENT (mm)
Rod & Level Std Dev
AC OVERLAY (mm)
MILL REPLACEMENT (mm)
Rod & Level Min
AC OVERLAY (mm)
MILL REPLACEMENT (mm)
Rod & Level Max
AC OVERLAY (mm)
MILL REPLACEMENT (mm)
MILLING (mm)     38383838 
Lift Thicknessess
Maximum Lift Thickness<=75mm  5651515151515151 
AC Material Requirements
Hveem stability (minimum 37)
Air Voids 3-5 %
Virgin Mix
Aggregate Pass #4<40%
RAP
TOTAL AC
NEW AC 44    44 
% AC OF SALVAGED MIX
% NEW AGG.MATERIAL 7070    7070 
% RAP
New Aggregate
Aggregate Pass #4 <40% 6767    6767 

Note: The number after the state name is the state’s numeric code in the LTPP data base.

Tab1e 105. Summary of construction data for Missouri.
Missouri(29)501502503504505506507508509
Required Thickness
AC OVERLAY (mm)051127127515112712751
MILLING (mm)0<25.4<25.4<25.4<25.438–5038–5038–5038–50
L05B Thickness
AC OVERLAY (mm)
MILLING (mm)
SPS Construction Thickness
AC OVERLAY (mm)
Rod & Level
AC OVERLAY (mm)
MILLING (mm)
Rod & Level Std Dev
AC OVERLAY (mm)
MILLING (mm)
Rod & Level Min
AC OVERLAY (mm)
MILLING (mm)
Rod & Level Max
AC OVERLAY (mm)
MILLING (mm)
MILLING (mm)
Lift Thicknessess
Maximum Lift Thickness<=75mm
AC Material Requirements
Hveem stability (minimum 37)
Air Voids 3-5 %
Virgin Mix
Aggregate Pass #4<40%
RAP
TOTAL AC
NEW AC
% AC OF SALVAGED MIX
% NEW AGG.MATERIAL
% RAP
New Aggregate
Aggregate Pass #4 <40%

Note: The number after the state name is the state’s numeric code in the LTPP data base.

Table 106. Summary of construction data for Montana.
Montana (30) 501502503504505506507508509560561
Required Thickness
AC OVERLAY (mm)051127127515112712751  
MILLING (mm)0<25.4<25.4<25.4<25.438–5038–5038–5038–50  
L05B Thickness
AC OVERLAY (mm) 6611714251107183180114  
MILLING (mm) 2028331569717166  
SPS Construction Thickness
AC OVERLAY (mm) 6611714251107191180114  
Rod & Level
AC OVERLAY (mm) 27101923728958928  
MILL REPLACEMENT (mm)
Rod & Level Std Dev
AC OVERLAY (mm) 81010999118  
MILL REPLACEMENT (mm)
Rod & Level Min
AC OVERLAY (mm) 1079741313745113  
MILL REPLACEMENT (mm)
Rod & Level Max
AC OVERLAY (mm) 46119127644812211746  
MILL REPLACEMENT (mm)
MILLING (mm) 2525252579777776  
Lift Thicknessess
Maximum Lift Thickness<=75mm 6194896474949471  
AC Material Requirements
Hveem stability (minimum 37)Air Voids 3-5 %
Air Voids 3-5 %
Virgin Mix
Aggregate Pass #4<40% 51  55      
RAP
TOTAL AC
NEW AC
% AC OF SALVAGED MIX
% NEW AGG.MATERIAL
% RAP
New Aggregate
Aggregate Pass #4 <40% 5151    5151  

Note: The number after the state name is the state’s numeric code in the LTPP data base.

Table 107. Summary of construction data for New Jersey.
New JerseY (34) 501502503504505506507508509509560
Required Thickness
AC OVERLAY (mm)051127127515112712751  
MILLING (mm)0<25.4<25.4<25.4<25.438–5038–5038–5038–50  
L05B Thickness
AC OVERLAY (mm) 4811911946107198198109  
MILLING (mm) 000051515151  
SPS Construction Thickness
AC OVERLAY (mm) 51127127127102178178102  
Rod & Level
AC OVERLAY (mm) 4311411853495612341  
MILL REPLACEMENT (mm)     54565564  
Rod & Level Std Dev
AC OVERLAY (mm) 1298966146  
MILL REPLACEMENT (mm)     910811  
Rod & Level Min
AC OVERLAY (mm) 18991022828438123  
MILL REPLACEMENT (mm)     28363648  
Rod & Level Max
AC OVERLAY (mm) 6913213776616615651  
MILL REPLACEMENT (mm)     69898699  
MILLING (mm)     74535864  
Lift Thicknessess
Maximum Lift Thickness<=75mm 618910264769710276  
AC Material Requirements
Hveem stability (minimum 37)
Air Voids 3-5 %
Virgin Mix
Aggregate Pass #4<40%  5355  6152   
RAP
TOTAL AC
NEW AC
% AC OF SALVAGED MIX
% NEW AGG.MATERIAL
% RAP
New Aggregate
Aggregate Pass #4 <40%

Note: The number after the state name is the state’s numeric code in the LTPP data base.

Table 108. Summary of construction data for New Mexico.
New Mexico(35) 501502503504505506507508509
Required Thickness
AC OVERLAY (mm)051127127515112712751
MILLING (mm)0<25.4<25.4<25.4<25.438–5038–5038–5038–50
L05B Thickness
AC OVERLAY (mm)
MILLING (mm)
SPS Construction Thickness
AC OVERLAY (mm) 5610711764109188188107
Rod & Level
AC OVERLAY (mm)4856107117635513313253
MILL REPLACEMENT (mm)     54565653
Rod & Level Std Dev
AC OVERLAY (mm)612111194566
MILL REPLACEMENT (mm)     4556
Rod & Level Min
AC OVERLAY (mm)33338691484812212233
MILL REPLACEMENT (mm)     46464633
Rod & Level Max
AC OVERLAY (mm)6179127137796614514764
MILL REPLACEMENT (mm)     66666964
MILLING (mm)51    51516451
Lift Thicknessess
Maximum Lift Thickness<=75mm7676102766476767676
AC Material Requirements
Hveem stability (minimum 37)
Air Voids 3-5 %
Virgin Mix
Aggregate Pass #4<40%  49 59 5959 
RAP
TOTAL AC
NEW AC 55    55
% AC OF SALVAGED MIX
% NEW AGG.MATERIAL 4545    4545
% RAP
New Aggregate
Aggregate Pass #4 <40% 4343    4343

Note: The number after the state name is the state’s numeric code in the LTPP data base.

Table 109. Summary of construction data for Oklahoma.
Oklahoma (40) 501502503504505506507508509560
Required Thickness
AC OVERLAY (mm)051127127515112712751 
MILLING (mm)0<25.4<25.4<25.4<25.438–5038–5038–5038–50 
L05B Thickness
AC OVERLAY (mm)
MILLING (mm)
SPS Construction Thickness
AC OVERLAY (mm) 46112119439916314779 
Rod & Level
AC OVERLAY (mm) 46112119439916314678 
MILL REPLACEMENT (mm)
Rod & Level Std Dev
AC OVERLAY (mm) 8131371311139 
MILL REPLACEMENT (mm)
Rod & Level Min
AC OVERLAY (mm) 257979207414512456 
MILL REPLACEMENT (mm)
Rod & Level Max
AC OVERLAY (mm) 641401425612418817097 
MILL REPLACEMENT (mm)     41303643 
MILLING (mm)
Lift Thicknessess
Maximum Lift Thickness<=75mm 64898964102102102102 
AC Material Requirements
Hveem stability (minimum 37)
Air Voids 3-5 %
Virgin Mix
Aggregate Pass #4<40%  4247  4234  
RAP
TOTAL AC
NEW AC
% AC OF SALVAGED MIX 11    11 
% NEW AGG.MATERIAL 7070    7070 
% RAP
New Aggregate
Aggregate Pass #4 <40% 5959    5959 

Note: The number after the state name is the state’s numeric code in the LTPP data base.

Table 110. Summary of construction data for Texas.
Texas(48) 501502503504505506507508509
Required Thickness
AC OVERLAY (mm)051127127515112712751
MILLING (mm)0<25.4<25.4<25.4<25.438–5038–5038–5038–50
L05B Thickness
AC OVERLAY (mm) 561351355199178185109
MILLING (mm) 0000    
SPS Construction Thickness
AC OVERLAY (mm) 5812412497114175168102
Rod & Level
AC OVERLAY (mm) 58123122595912011654
MILL REPLACEMENT (mm)     56555347
Rod & Level Std Dev
AC OVERLAY (mm) 81991077711
MILL REPLACEMENT (mm)     7665
Rod & Level Min
AC OVERLAY (mm) 4301023046991020
MILL REPLACEMENT (mm)     41384333
Rod & Level Max
AC OVERLAY (mm) 74145145797613512771
MILL REPLACEMENT (mm)     71766466
MILLING (mm)     44463743
Lift Thicknessess
Maximum Lift Thickness<=75mm 5853485858564853
AC Material Requirements
Hveem stability (minimum 37)
Air Voids 3-5 %
Virgin Mix
Aggregate Pass #4<40%      55 55
RAP
TOTAL AC
NEW AC 33    33
% AC OF SALVAGED MIX
% NEW AGG.MATERIAL 6565    6565
% RAP
New Aggregate
Aggregate Pass #4 <40% 7171    7171

Note: The number after the state name is the state’s numeric code in the LTPP data base.

Table 111. Summary of construction data for Alberta.
Alberta (81) 501502503504505506507508509
Required Thickness
AC OVERLAY (mm)051127127515112712751
MILLING (mm)0<25.4<25.4<25.4<25.438–5038–5038–5038–50
L05B Thickness
AC OVERLAY (mm) 53127122 9416317884
MILLING (mm) 0 0041567664
SPS Construction Thickness
AC OVERLAY (mm) 53127122539416017884
Rod & Level
AC OVERLAY (mm)
MILL REPLACEMENT (mm)
Rod & Level Std Dev
AC OVERLAY (mm)
MILL REPLACEMENT (mm)
Rod & Level Min
AC OVERLAY (mm)
MILL REPLACEMENT (mm)
Rod & Level Max
AC OVERLAY (mm)
MILL REPLACEMENT (mm)
MILLING (mm)     56534850
Lift Thicknessess
Maximum Lift Thickness<=75mm 5874765861717461
AC Material Requirements
Hveem stability (minimum 37)
Air Voids 3-5 %
Virgin Mix
Aggregate Pass #4<40%   64   64 
RAP
TOTAL AC
NEW AC 44    44
% AC OF SALVAGED MIX
% NEW AGG.MATERIAL 7070    7070
% RAP
New Aggregate
Aggregate Pass #4 <40% 6464    6464

Note: The number after the state name is the state’s numeric code in the LTPP data base.

Table 112. Summary of construction data for Manitoba.
Alberta (81) 501502503504505506507508509
Required Thickness
AC OVERLAY (mm)051127127515112712751
MILLING (mm)0<25.4<25.4<25.4<25.438–5038–5038–5038–50
L05B Thickness
AC OVERLAY (mm) 69124142 8116516594
MILLING (mm)    0    
SPS Construction Thickness
AC OVERLAY (mm) 64140127518916516589
Rod & Level
AC OVERLAY (mm)
MILL REPLACEMENT (mm)
Rod & Level Std Dev
AC OVERLAY (mm)
MILL REPLACEMENT (mm)
Rod & Level Min
AC OVERLAY (mm)
MILL REPLACEMENT (mm)
Rod & Level Max
AC OVERLAY (mm)
MILL REPLACEMENT (mm)
MILLING (mm)     38383838
Lift Thicknessess
Maximum Lift Thickness<=75mm 5151515151383851
AC Material Requirements
Hveem stability (minimum 37)
Air Voids 3-5 % 4.54.53.93.93.93.94.54.5
Virgin Mix
Aggregate Pass #4<40%
RAP
TOTAL AC
NEW AC 55    55
% AC OF SALVAGED MIX
% NEW AGG.MATERIAL 7070    7070
% RAP
New Aggregate
Aggregate Pass #4 <40% 6262    6262

Note: The number after the state name is the state’s numeric code in the LTPP data base.

 


The Federal Highway Administration (FHWA) is a part of the U.S. Department of Transportation and is headquartered in Washington, D.C., with field offices across the United States. is a major agency of the U.S. Department of Transportation (DOT).
The Federal Highway Administration (FHWA) is a part of the U.S. Department of Transportation and is headquartered in Washington, D.C., with field offices across the United States. is a major agency of the U.S. Department of Transportation (DOT). Provide leadership and technology for the delivery of long life pavements that meet our customers needs and are safe, cost effective, and can be effectively maintained. Federal Highway Administration's (FHWA) R&T Web site portal, which provides access to or information about the Agency’s R&T program, projects, partnerships, publications, and results.
FHWA
United States Department of Transportation - Federal Highway Administration