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yellow pavement stripe on black background		 AASHTO Innovative Highway Technologies High Performance Concrete
Transition Plan
September 2000

APPENDIX F

Reference: Draft PCI HPC Committee report
(permission to reproduce granted by PCI, January 2000)

Table 2.1 Structural Features of High Performance Concrete Bridges

State AL CO GA NE NH NC OH TX (1) TX (1) VA VA WA
Bridge Name AL 199 Yale Av. SR 920 120th St. Route 104 US 401 SR 22 Louetta San Angelo Route 40 VA Av. Route 18
Girder                        
Type BT-54 BX30 IV NU1100 III IV BIV-48 U54 IV IV III W74G
Max.Span, ft. 114 115 127 75 65 92 115.5 135.5 157 80 74 137
Max. Spacing, ft. 8.75 Adj. 7.5 12.4 12.5 10.24 Adj. 15.8 11 10 9.25 8
Max. No. of Strands 50 64   30 40   32 87 c     40
Dia of Strands, in. 0.6 0.6 0.6 0.5 0.5 0.6 0.6 0.6 0.6 0.5 0.6 0.6
Curing Method       s s   s m m s and m s  
Concrete Strengths:                        
Specified at Transfer, psi 8,000 6,500 8,000 5,500 6,500 7,000 6,000 8,800 10,800 6,000 6,600 7,400
Actual at Transfer, psi - 5,600 - 10,900 - 8471 6715 - 8000 9,700 11,630 8,000s
7,820m		 8,840 7,755
Age at Transfer, hours -   -   14-63 - 18 18-28 23-28 18 s - 72 m 18 22
Specified Design, psi 10,000 10,000 10,000 12,000 8,000 10,000 10,000 13,100 14,700 8,000 10,000 10,000
Actual Design, psi - 7,800 - 14,000 - 13,900 8,138 - 11,600 15,640 14,820 9,770s
12,040m		 11,200 12,117
Age at Design, days 28 56 - 56 28 28 56 56 56 28 28 56
                         
Deck                        
Thickness, in. 7 6.9 7 7.5 9 8.5 N/A(4) 7.25 7.5 8.5 8.5 7.5
Permeability:                        
Specified, coulombs 1,800   2,000 1,800 1,000   1,000 - - 2,500 2,500 1,000
Actual, coulombs     - 589 609 - 896 - 350 - 400 900 740 898    
Age, days 56   56 56 56   56 56 56 28(3) 28(3)  
Concrete Strengths:                        
Specified, psi 6,000 5,100 7,000 8,000 6,000 6,000 8,000 8,000(2) 6,000(2) 4,000 6,000 4,000
Actual, psi - 6,100 - 9,133 8,811 - 12,200 9,220(2) 7,950(2) 8,720    
Age, days 28 28   56 28 28 56 28 28 28    
Curing Method 3 dm 5 dm   8 dw 4 dw   7 dw 10 dw 10 dw 7 dw 7 dw 14 dw

(1) For the Texas bridges, different concrete strengths were specified for different girder span lengths. Listed strengths are maximum values.
(2) Data for Louetta southbound and San Angelo eastbound bridges.
(3) Includes 21 days at 100 F (38 C)
(4) Ohio bridge did not have a concrete deck -- values are for the abutment
c = combination of pretensioning and post-tensioning    s = steam curing    m = moist curing    dm = days moist
dw = days wet

Table 3.1 Concrete Mix Proportions for Prestressed Concrete Girders

State CO NE NH OH TX TX VA (s) VA WA
Bridge Name Yale Av. 120th St. Route 104 SR 22 Louetta San Angelo Route 40 VA Av. Route 18
Mixture Ingredients                  
Cement Type III I III III III III I I III
Cement Quantity, lb/yd3 730 750 777 846 671 671 752 752 728
Fly Ash Type - C - - C C - - C
Fly Ash Quantity, lb/yd3 - 200 - - 316 312 - - 222
Silica Fume, lb/yd3 35 50 50 100 - - 53 75 50
Fine Aggregate, lb/yd3 1,363 990 1,075 927 1,029 1,062 1,425 1,350 890
Coarse Aggregate,
  Max Size, in.		 3/8 1/2 3/4 3/8 1/2 1/2 3/4 1/2 1/2
  Type   Limestone Taprock Gravel Limestone Limestone Limestone Limestone Gravel
  Quantity, lb/yd3 1,775 1,860 1,850 1,773 1,918 1,863 1,675 1,671 1,870
Water, lb/yd3 219 240 273 262 247 246 255 235 265
w/cm ratio 0.30 0.24 0.35 0.28 0.25 0.25 0.32 0.28 0.27
                   
Admixtures                  
Air Entrainment,
fl oz/yd3		 - - 10 21 - - Yes Yes -
Water Reducer,
fl oz/yd3		 15-58 30 14 - - - - - 29
Retarder, fl oz/yd3 - - - 28 27 28 24 25 -
High-Range Water-Reducer,
fl oz/yd3		 44-131 225 206 215 200 200 200 207 215
Corrosion Inhibitor, gal/yd3 - - 4 - - - - - -

(s) Steam-cured girders only

Table 3.2 Actual Concrete Properties for Prestressed Concrete Girders

State CO NE NH OH TX (1) TX (1) VA VA WA
Bridge Name Yale Av. 120th St. Route 104 SR 22 Louetta San Angelo Route 40 VA Av. Route 18
Fresh Concrete Properties                  
Concrete Temp., deg F 85 128 173 175          
Slump, in. 4 - 9   5 1/4 - 7 1/4 7 8 -10 6 - 9 5 - 7 5 - 7 4 3/4
Air Content, % 0 - 1.6 2 5.2 - 7.4 6 0.9 0.9 4 - 7 4-7  
Unit Weight, lb/ft3 151   147.9   154        
Hardened Properties                  
Compressive Strength:                  
Transfer, psi 7,500 8,471 6,715 8,500 9,360 9,780 8,000 s 8,820 7,755
3 day, psi       9,000     7,820 m    
7 day, psi 8,000 10,529 8,186 9,300     9,770 s    
28 day, psi 9,600 12,554 8,138 10,000 13,950 13,630   11,200 11,370
56 day, psi 9,900 13,944 8,803 11,500 15,640 14,820 9,880 s   12,117
Other             12,220 m    
Flexural Strength:                  
28 day, psi 1,150           920 s    
56 day, psi 1,161 1,707   1,300          
Permeability:                  
RCP, Coulombs   334 1,590 350 470 440 272 s 124 1,010
Test Age, days   56 56 56 56 56 28 28 56

(1) Average field test results
s = steam curing,   m = moist curing

Table 4.1 Instrumentation of High Performance Concrete Bridges

State AL CO GA NE NH NC OH TX TX VA WA
Bridge Name AL 199 Yale Av. SR 920 120th St. Route 104 US 401 SR 22 Louetta San Angelo VA Av. Route 18
Types of Measurements
Curing Temperatures   X   X X X X X X X X
Prestress Losses X X X X X X X X X X X
Temperature Gradients X X   X X     X X X  
Deflections X X X X X X X X X X X
Load Test X       X   X X X    
Other   (1) (2) (3)     (4) (5) (6) (1)  

(1) Transfer length and strand slip
(2) Overall length change, initial prestressing force and natural frequency
(3) End rotation and prestressing force
(4) Transfer length, initial prestressing force, cracking load, natural frequency, strain distribution and load distribution factors
(5) Transfer length, strand slip and overall length change
(6) Transfer length, strand slip, overall length change and initial prestressing force

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See also the web site for the AASHTO Technology Implementation Group