The world’s first hydrogen fuel-cell train enters into service, sodium-ion replacing lithium-ion in batteries, and other materials stories that may be of interest for September 19, 2018.
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Many people lack adequate housing, but Icon, an Austin construction company, wants to change that. The company recently introduced a 3-D-printed concrete house that was printed in less than 24 hours at a fraction of the cost of an average home.
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Researchers at Eindhoven University of Technology, in collaboration with BAM Infra, recently completed construction of the world’s first 3-D printed reinforced concrete bridge. The steel cables, added during printing, help prestress the concrete to support loads beyond its weight.
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A mechanical engineering student recently participated in a NIST summer project involving 3-D printed concrete—watch this video to see how the project team tested various cement paste samples to measure viscosity, yield stress, and printing defects.
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