|
TABLE A
|
Rod sizes
|
Cross Section
Area of Rebar
|
|
Diameter
of Rebar
|
|
|
0.44 sq in
0.20 sq in
0.11 sq in
|
=
=
=
|
3/4"
1/2"
3/8"
|
|
TABLE B
|
Bond Strength - Epoxy to Rebar
Resin to rebar bond strength = 580 lbs/sq in constant
|
|
|
Diameter
of Rebar
|
|
Bond Strength/
lineal inch
|
|
|
3/4"
1/2"
3/8"
|
=
=
=
|
1366 lbs
911 lbs
683 lbs
|
|
Bond strength must exceed that of Epoxy to Timber (see table below)
|
|
TABLE C
|
Bond Strength - Epoxy to Timber (for pine)
Epoxy to timber bond strength/inch = hole diameter x shear stress (pine)
|
|
Rebar Size
|
Hole Size
|
x |
pi
|
x |
Shear for pine
|
= |
Bond Strength/inch
|
3/4" dia.
1/2" dia.
3/8" dia.
|
1.125" dia.
0.875" dia.
0.750" dia.
|
x
x
x
|
3.1416
3.1416
3.1415
|
x
x
x
|
90 psi
90 psi
90 psi
|
=
=
=
|
318 lb/inch
247 lb/inch
212 lb/inch
|
|
