SC Wood Frame Structures Practice Questions - South Carolina Wood Frame Structures Contractor Examination Exam

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A 4-inch slab-on-ground will have saw-cut contraction joints. What is a commonly used maximum joint spacing rule of thumb for unreinforced or lightly reinforced slabs?

Joints at 4 feet on center in both directions, regardless of thickness Joints spaced in feet at about 24 to 36 times the slab thickness in inches (about 8 to 12 feet for a 4-inch slab) No joints are needed if the slab is placed in one day Joints only at the building perimeter

Correct Answer:

Joints spaced in feet at about 24 to 36 times the slab thickness in inches (about 8 to 12 feet for a 4-inch slab)

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