*Lap Splice may be omitted and reinforcing made
one piece from footing to top of wall.
Note: Concrete in footing to test 2000lbs. per
sq. in. at 28 days. Concrete block: ASTM C-90.
Grout: 1 part cement, 3 parts sand, 2 parts pea grave. Mortar:
1 part cement, 1/2 part lime putty,
4 1/2 parts sand, MAXIMUM STRESSES: fm.= 20,000 p.s.i.; fm.
=250 p.s.i.; Shear V = 15 p.s.i.;
Bond U = 100 p.s.i.; Soil pressure = 1,080 lbs. per sq. ft.;
Passive pressure = 300 p.s.f.
Coefficient of friction = 0.35.
Note: The above retaining wall designs are
typical for average conditions. For specific designs, contact
your local building department or consulting engineer.