PHYSICAL PROPERTIES OF STAY-FORM®

DESCRIPTION

Standard Grade #66

Galvanized Sheet Thickness

0.0217 in. (0.5512mm)

Sheet Dimensions

27 x 96 in. (686mm x 2438mm)

Weight

0.66 lbs/ft2 (3.22 kg/m2)

Yield Strength

27.63 ksi (190.50 MPa)

Yield Strain

0.00297

Ultimate Strength

50.28 ksi (346.68 MPa)

Ultimate Strain

0.25

Modulus of Elasticity (E)

29,500 ksi (203,400 MPa)

This data is based on results from testing conducted by an independent testing lab. For more information on the details of the testing, contact AMICO at 800-366-2642.

Proper concrete mix will not flow through the openings in STAY-FORM®.

  • Residual rain water in the form is forced out through the openings in the form.

  • During vibration the blossoming of cement through the openings will show the applicator consolidation is complete and affords the removal of any air pockets.

  • The surface of the STAY-FORM® after concrete placement is roughened and ready for the next pour. Scabbling or roughening of the exposed surface is not necessary saving valuable time and labor.

STAY-FORM®, when used for bulkheads, outperforms traditional plywood for shear bond strength by as much as 21%.

Shear Bond Strength (Modified ASTM C482)

TEST AGE

B-MATTE TOTAL LOAD

B-MATTE SHEAR BOND STRENGTH

STAY-FORM TOTAL LOAD

STAY-FORM SHEAR BOND STRENGTH

5/6 day

15,725 lb.

244.6 psi

26,700 lb.

414.9 psi

13/14 day

12,750 lb.

200.3 psi

16,200 lb.

249.7 psi

27/28 day

15,200 lb.

238.9

19,525 lb.

303.9 psi

The 5/6 day shear bond test data indicated that the STAY-FORM® #66 test was 41% greater than that of the identically cast test specimen using the B-Matte form board material.

The 13/14 day shear bond test data indicated that the STAY-FORM® #66 test was 20% greater than that of the identically cast test specimen using the B-Matte form board material.

The 27/28 day shear bond test data indicated that the STAY-FORM® #66 test was 21% greater than that of the identically cast test specimen using the B-Matte form board material.

Carlson Testing, Inc.

Guidelines for Loading & Bracing Spacings
STAY-FORM® #66

BRACING SPACING (IN. O.C.)

24"

18"

12"

Lateral Loading (psf)

1200

1200

1600

Liquid Head (ft.)

8

8

10

Pour Rate (ft./hour)

4

4

7

Maximum Deflection (in.)

11/4

3/4

1/8

Recommended lap (in.)

8

6

4

Recommended ties at lap (both ribs)

2

2

1