• Hillman Composite Beam

    By Posted on 11.9.2008 Comments

    When John Hillman subjected his bridge beam to load tests, it handled a hydraulic press’s 145 tons of maximum force with ease. The Hillman Composite Beam (a winner of our 2008 Invention Awards) weighs one third as much as concrete competitors—saving 20 percent on shipping and installation costs—and can hold 50 percent more weight. The beam gets its strength from within. A concrete arch supports the weight above it, and a steel plate running lengthwise prevents the arch from collapsing.

    12.27.2008 at 10:06am - Comment by eddiequest

    I like the idea. But I'm a bit confused. "A concrete arch supports the weight... steel plate... prevents the arch from collapsing... plastic shell wards off corrosion." Where's the composite part of this thing?



Download Our iPhone App

Stay up to date on the latest news of the future of science and technology from your iPhone with full articles, images and offline viewing



Follow Us On Twitter

Featuring every article from the magazine and website, plus links from around the Web. Also see our PopSci DIY feed



Become a Fan On Facebook

Share links with friends, comment on stories and more


December 2009: Best of What's New

In our December issue, Popular Science names the 100 best innovations of the year: bombproof wallpaper, self-parking cars, the fastest helicopter, and 97 more. Plus inventor profiles and videos.

Check out the best of what's new here.

Popular Science Photo Pool


Share your photos in the Pop Sci pool at www.flickr.com!
tags_sprite.png
POP_embeddedForm_cover_May09.jpg