POLYSTEEL FORM®

TECHNICAL DATA SHEET

PRODUCT DESCRIPTION

An expanded polystyrene concrete forming unit which is used to construct a one-piece, monolithic concrete wall with reinforced concrete posts and beams. The Forms remain in place providing a super energy efficient concrete wall and are finished with conventional interior and exterior wall coverings.

MATERIALS OF MANUFACTURE

NOMINAL DIMENSIONS & WEIIGHT
Length 48"
Height 16"
Width 9-1/4" (6" core), 11" (8" core)
Surface Area 5.33 sq ft
Weight 6 lbs per Polysteel Form®
CONCRETE VOLUMES
6" core 0.074 cu yd per unit (1 yd of concrete fills 13.5 Forms)
8" core 0.100 cu yd per unit (1 yd of concrete fills 10 Forms)
TYPICAL DESIGN VALUES
Expanded Polystyrene density 1.5 lbs/cu ft
Average thickness of EPS 2.4" per side (6" core), 2.5" per side (8" core)
Thermal mass with concrete 56 lbs/sq ft (6" core), 76 lbs/sq ft (8" core)
R-value of 1.5 lb/cu ft EPS 4.17/inch
K-factor of 1.5 lb/cu ft EPS 0.24/inch
Air infiltration comparison 25% versus wood frame
Water absorption (volume) Less then 2% (ASTM C272
Water Vapor 0.9 to 2.5 perm in.
Transmission Breathability/permeability 1.27 perms per inch
Sound class 48 with 1/2" drywall
Fire Wall (ASTM-19) 2 hours with 5/8 gypsum on each side
EPS compressive strength 15-21 psi (10% deformation)
Concrete compressive strength 2,500 psi (minimum)
Concrete pouring temperature Down to -15 F


 


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