September 26, 2002La Guardia Precast Pavement Test Section Installation(photos by Shiraz Tayabji)- Sept. 26, 2002

Project Particulars!Taxiway A (3,000 ft AC pavement) at LaGuardia is

in need of rehabilitation!AC option not preferred; cast-in place PCC option

not feasible due to time constraints!Precast paving being considered

" Rehab 300 ft in each 56 hour weekend " Mill 16 in AC, prepare base, place PCC panels" Provide for light can installation

!Two 200 ft sections constructed Fall 2002" A 16 in. and a prestressed 12 in. designs

Thickness Design Conventional Precast Panels

S.I. Units English Units

Panel Dimension 3.8m x 7.6m 12.5’ x 25’

Panel Thickness 406mm 16”

Dowel Diameter 50mm 2”

Grout Bed 12.7mm ½”

Thickness Design Pretensioned Precast Panels

S.I. Units English Units

Panel Dimension 3.8m x 7.6m 12.5’ x 25’

Panel Thickness 300mm 12”

Dowel Diameter 38mm 11/2”

Steel Strands(Diameter / Spacing)

12.7mm / 600mm ½” / 24”

Grout Bed 12.7mm ½”

Details - Setting Bolt

EX I ST I N G A SP H A L T C O N C RETEC EM EN T GR O U T B EDTO REM A I N

M I L L ED SU RFA C E

SLA

B

STEEL P L A TE

STA I N L ES S STEELTH REA D ED SL EEV E

W EL D N U T TO RO D

TH REA D ED RO D (A S TM A 3 6 )

Details Dowel Slot

P RO V I D E RO U GH EN ED

EX I ST I N G A SP H A L T C O N C R ETE TO REM A I N

SU RFA C E

C EM EN T G RO U T B ED

SM O O TH D O W EL B A R

FI L L O P EN I N G W I TH C O N C RETE

9

10

As of April 2010