Concrete is not the first material one usually thinks of when exploring space. Nor is it the focus of much cutting-edge research. The most common building material has been used by humanity for thousands of years. But surprisingly, little is still known about some of its properties, due in no small part to the limitations of the environments it can be tested in. Now, this most ubiquitous of materials will be tested in a new environment—the microgravity aboard the International Space Station.
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Source: Phys.org