Concrete canoes and steel bridges: Portland State hosts collegiate student design competition (STEM)
Members of a past Portland State University concrete canoe team are shown with their creation. (Portland State University) How do you make concrete float and steel bridges that withstand load stresses ...
DIY Creators on MSN
Making a concrete slab for a shed // from start to finish - DIY Creators
In this video, learn how to create a concrete slab from start to finish. This detailed guide covers necessary steps for ...
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