A bund consists of: an impervious bund wall or embankment surrounding the facility or tanks. an impervious floor within the bunded area. any joints in the floor or the wall, or between the floor and the wall.
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How to get the look of flagstone at a fraction of the price. 1  A stamped and colored concrete walkway that simulates stone ushers visitors into this courtyard. 2  If you really canât decide between flagstone and stamped concrete, get both.tamped concrete is poured all at one time and then stamped with large mats that expedite the process. With stone, cuts will also need to be made to create the desired edge, whether it is straight or curved. The more complicated the edges are, the more cuts required, which means more labor and higher costs.