Concrete foundation walls shall comply with the following.
Nominal thickness irc concrete walls.
All other requirements not shown here shall be in.
Wood in contact with concrete is generally required to be preservative treated against decay as concrete tends to wick soil moisture.
The appropriate depth of the wall depends on several factors and there is no single standard for every home.
D no vertical reinforcement required.
Dr means design is required in accordance with the applicable building code or where there is no code in accordance with aci 318.
The irc minimum is 6 in.
Concrete masonry is well suited for below grade applications because of its strength durability economy and resistance to fire insects and noise.
Vertical reinforcement with a minimum yield strength of 40 000 psi 276.
Concrete walls constructed in accordance with these provisions shall comply with the shapes and minimum concrete cross sectional dimensions of table r608 3.
See table r608 3 for tolerance from nominal thickness permitted for flat walls.
R608 3 1 flat wall systems.
Quick reference to pages of guide.
An 8 foot high flat concrete foundation wall of nominal 10 inch thickness is subjected to 6 feet of unbalanced backfill.
Minimum nominal wall thickness inches 8 10 12 8 10 12 8 10 12 8.
If the soil class is gp what is the minimum vertical reinforcement required.
The table shown is based on aci 332 14 residential code requireme nts for structural concrete aci 332 14 and commentary tabl e 8 2 1 3f modified per aci 440 guide for design and construction of structural.
A 4 at 38 o c.
See section r404 1 3 2 for minimum reinforcement required for basement walls supporting above grade concrete walls.
Foam plastic panels are 1 45 pcf nominal density 2 75 in thick and the concrete wall thickness is 4 6 8 10 or 12 inches.
Anchor bolts are generally required to anchor the wood framing of the superstructure to the concrete elements of the foundation.
Wall thickness with an actual thickness set at 7 5 8 in.
R608 3 concrete wall systems.
C 6 at 43 o c.
The thickness shall comply with the requirements of table 1807 1 6 2.
The size and spacing of vertical reinforcement shown in table 1807 1 6 2 is based on the use of reinforcement with a minimum yield strength of 60 000 pounds per square inch psi 414 mpa.
Stronghold stay in place concrete forms conform to astm e 2634 standard specification for ice as referenced in irc r404 1 3 3 6 1 irc r r608 4 4 and ibc 1903 4.
Concrete masonry is used to construct various foundation wall types including full basement walls crawlspace walls stem walls and piers.
The irc provides three examples of wall systems that are commonly used and the minimum parameters for each in section r608 3.
Concrete wall forms set for residential foundation showing a nominal 8 in.
