Invention Grant
US08771506B2 Precast pervious concrete 有权
预制透水混凝土

Precast pervious concrete
Abstract:
A pervious concrete slab is pre-cast in a reusable mold or form to define at least one keyway configured and arranged to engage with a complementary keyway of another similar pre-cast pervious concrete slab. The concrete slab is then cured in a controlled environment, transported to an installation site, and installed.
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