Costco’s retail development in Melbourne, Australia, relies on the Cementaid HPI (Hydrophobic PoreBlocking Ingredient, 3CC. No membranes were used. 750m3 of 3CC enhanced, hydrophobic DRY! concrete was used in the lift pits and exposed loading dock and ramps above the store. This technology allowed Costco’s designers and builders, to remove the entire conventional ‘waterproof membrane’ trade, and to save what would have been an ongoing cost, as revenue. The effects of Cementaid 3CC will last the entire, design life of the building. Without maintenance. You can RELY on Cementaid.