Structural · G-KQMCD

Utility Trench Waterproofing and Slab Detail

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A new concrete slab spans over a new utility trench with a variable width. The assembly rests on a multi-layer waterproofing system consisting of an Ultrashield G-1000 protection course over a 40 mil Liquid Boot membrane, a VI-20 geomembrane, and a secondary Ultrashield G-1000 protection course. This waterproofing stack bears on a 4-inch gravel layer placed directly on the subgrade.

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