The ±3/4 in fine grade elevation tolerance for the base or the soil immediately below the slabonground corresponds directly with the 3/4 in slabWith some limitations, reinforcement for slabs can be sized using the Subgrade Drag Theory in order to increase the spacing of control or construction joints The result is a lightly reinforced slab designed to offset the effects of temperature and shrinkage of the concrete ACI 360, "Design of SlabsonGrade", refers to this as a Type B slabSame for posttensioned slab on grade design using the design guide from the PostTension Institute (PTI) Both of these are Code reference manuals in the International Residential Code (IRC) These manuals are meant primarily for residential foundation design, or light structures on slab on grade foundations
Advanced Floor Concepts Lasre Slab
