A pipe penetrates a concrete slab or concrete wall requiring a minimum dimension of four inches alongside a spacing of three times the pipe diameter. The penetration maintains specified clearance dimensions labeled as D and three times D around the pipe diameter. This geometry establishes the necessary spacing and void layout for sleeve or core-drilled penetrations through cast-in-place concrete elements.
D 4" MIN. 3D PIPE THROUGH SLAB OR CONCRETE WALL
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