1810.2.13 Minimum concrete cover.
BC § 1810.2.13
The minimum concrete cover for cast-in-place and precast concrete piles shall be as shown in Table 1810.2.13. Table 1810.2.13Minimum Concrete Cover for Cast in Place and Precast Concrete Piles a Foundation Element or Condition Minimum Cover Foundation Element or Condition Minimum Cover 1. Precast nonprestressed deep foundation elements Exposed to seawater3 inches Not manufactured under plant conditions2 inches Manufactured under plant control conditionsIn accordance with Section 20.6.1.3.3 of ACI 3182. Precast prestressed deep foundation elements Exposed to seawater2.5 inches OtherIn accordance with Section 20.6.1.3.3 of ACI 3183. Cast-in-place deep foundation elements not enclosed by a steel pipe, tube or permanent casing2.5 inches4. Cast-in-place deep foundation elements enclosed by a steel pipe, tube or permanent casing1 inch5. Structural steel core within a steel pipe, tube or permanent casing2 inches6. Cast-in-place drilled shafts enclosed by a stable rock socket1.5 inches For SI: 1 inch = 25.4 mm. a. The concrete cover provided for prestressed and nonprestressed reinforcement in foundations shall be no less than the largest applicable value specified in Table 1810.2.13. Longitudinal bars spaced less than 1 1/2 inches (38.1 mm) clear distance apart shall be considered bundled bars for which the concrete cover provided shall also be no less than that required by Section 20.6.1.3.4 of ACI 318. Concrete cover shall be measured from the concrete surface to the outermost surface of the steel to which the cover requirement applies. Where concrete is placed in a temporary or permanent casing or a mandrel, the inside face of the casing or mandrel shall be considered the concrete surface.
