{"page":"\u003clink rel=\"stylesheet\" href=\"https://lessonplanet.com/assets/packs/css/resources-c03aa079.css\" /\u003e\n\u003clink rel=\"stylesheet\" href=\"https://lessonplanet.com/assets/packs/css/lp_boclips_stylesheets-517835be.css\" media=\"all\" /\u003e\n\u003cdiv data-title='Exhibition shows off see-through concrete' data-url='/boclips/videos/5c54bdb2d8eafeecae135fa3' data-video-url='/boclips/videos/5c54bdb2d8eafeecae135fa3' id='bo_player_modal'\u003e\n\u003cdiv class='boclips-resource-page modal-dialog panel-container'\u003e\n\u003cdiv class='react-notifications-root'\u003e\u003c/div\u003e\n\u003cdiv class='rp-header'\u003e\n\u003cdiv class='rp-type'\u003e\n\u003ci aria-hidden='true' class='fai fa-regular fa-circle-play'\u003e\u003c/i\u003e\nVideo\n\u003c/div\u003e\n\u003ch1 class='rp-title' id='video-title'\u003e\nExhibition shows off see-through concrete\n\u003c/h1\u003e\n\u003cdiv class='rp-actions'\u003e\n\u003cdiv class='mr-1'\u003e\n\u003ca class=\"btn btn-success\" data-posthog-event=\"Signup: LP Signup Activity\" data-posthog-location=\"body_link_boclips\" data-remote=\"true\" href=\"/subscription/new\"\u003e\u003cspan\u003e\u003cspan\u003eGet Free Access\u003c/span\u003e\u003cspan class=\"\"\u003e for 10 Days\u003c/span\u003e\u003cspan\u003e!\u003c/span\u003e\u003c/span\u003e\u003c/a\u003e\n\u003c/div\u003e\n\u003c/div\u003e\n\u003c/div\u003e\n\u003cdiv class='rp-body'\u003e\n\u003cdiv class='rp-info'\u003e\n\u003cdiv aria-label='Hide resource details' class='rp-hide-info' role='button' tabindex='0'\u003e\u0026times;\u003c/div\u003e\n\u003ci aria-label='Expand resource details' class='rp-expand-info fai fa-solid fa-up-right-and-down-left-from-center' role='button' tabindex='0'\u003e\u003c/i\u003e\n\u003ci aria-label='Compress resource details' class='rp-compress-info fai fa-solid fa-down-left-and-up-right-to-center' role='button' tabindex='0'\u003e\u003c/i\u003e\n\u003cdiv class='rp-rating'\u003e\n\u003cspan class='resource-pool'\u003e\n\u003cspan class='pool-label'\u003ePublisher:\u003c/span\u003e\n\u003cspan class='pool-name'\u003e\n\u003cspan class='text'\u003e\u003ca data-publisher-id=\"30356011\" href=\"/search?publisher_ids%5B%5D=30356011\"\u003eCurated Video\u003c/a\u003e\u003c/span\u003e\n\u003c/span\u003e\n\u003c/span\u003e\n\u003c/div\u003e\n\u003cdiv class='rp-description'\u003e\n\u003cspan class='short-description'\u003eWashington, DC   12 July 20041.  Wide view of man walking behind wall with shadow coming through2.  ExCU of hand seen through the translucent concrete wall3.  ExCu of bricks of the wall4.  Pan down to show cement bricks stacked 5. ...\u003c/span\u003e\n\u003cspan class='full-description hide'\u003eWashington, DC   12 July 2004\u003cbr/\u003e1.  Wide view of man walking behind wall with shadow coming through\u003cbr/\u003e2.  ExCU of hand seen through the translucent concrete wall\u003cbr/\u003e3.  ExCu of bricks of the wall\u003cbr/\u003e4.  Pan down to show cement bricks stacked \u003cbr/\u003e5.  SOUNDBITE:  (English) Howard Decker, Chief Curator - National Building Museum\u003cbr/\u003e\"The thing that makes this concrete translucent\u003cbr/\u003eSUPERCAPTION:  Howard Decker, Chief Curator - National Building Museum\u003cbr/\u003e6.  ExCU of intersection of bricks\u003cbr/\u003e7.  SOUNDBITE:  (English)\u003cbr/\u003e\"It has sharp edges SUPERCAPTION:  Howard Decker, Chief Curator - National Building Museum\u003cbr/\u003e8.  Wide view of exhibit sign:  \"The Future of Concrete\"\u003cbr/\u003e9.  Pan of cement \"wafers\" - 1/10th of an inch thick - translucent\u003cbr/\u003e10.  Mid view - tilt up from cemet reinforcing rods to gallery visitor\u003cbr/\u003e11.  Wide view of woman walking behind \"Litracon\" wall and exposes shadow\u003cbr/\u003e12.  SOUNDBITE:  (English) \u003cbr/\u003e\"Imagine that you're sitting on your patio 13. \u003cbr/\u003eSUPERCAPTION:  Howard Decker, Chief Curator - National Building Museum\u003cbr/\u003e Mid view - woman with hand behind wall and then walks behind wall with shadow showing\u003cbr/\u003e14.  Close up - cement tiles - pull out to show cement counter top\u003cbr/\u003e15.  CU:  photographic image on cement slate  - pull out to wide view of photographic image\u003cbr/\u003e16.  Mid view of couple looking at display - pan to model\u003cbr/\u003e17.  Wide exterior of National Building Museum\u003cbr/\u003eConcrete - the building material of roads, parking garages, sports stadiums and other modern constructions.\u003cbr/\u003eSome of the world's most beautiful and innovative works of contemporary architecture owe their unique characteristics to one of the world's most common materials, concrete.\u003cbr/\u003eAn exhibition entitled Liquid Stone at Washington's National Building Museum shows off new ways with an old material - ways that may soon revolutionize how the traditional building material is used.\u003cbr/\u003eA wall of translucent concrete may be the building material of the future.\u003cbr/\u003eFormed into bricks, this light transmitting concrete maintains the strength, form and durability of standard concrete, with one additional benefit.\u003cbr/\u003eIt transmits light.\u003cbr/\u003eAnd the prospect of a concrete structure that can conduct light through a seemingly solid material, opens big possibilities.\u003cbr/\u003e\"Litracon\" - or \"Light Transmitting Concrete\" is now under development by several researchers in the United States and Europe.  \u003cbr/\u003eSOUNDBITE:  (English) \u003cbr/\u003e\"The thing that makes this concrete translucent is its recipe.  Into the mix of cement and sand and all of the traditional things that make up concrete has been added fiber optics.  So now, if you put something between the source of light and the back side of this material the shadow transmits itself through the material because of the fiber optics.\"\u003cbr/\u003eSUPERCAPTION:  Howard Decker, Chief Curator - National Building Museum\u003cbr/\u003eGlass fibers in the cement may present construction crews with some complications.\u003cbr/\u003e SOUNDBITE:  (English) \u003cbr/\u003e\"It has sharp edges and its going to have to be handled in a way that takes into consideration its physical nature, because it has some sharp edges to it.   But, once, all materials have certain ways in which they need to be handled, so once you take that into consideration, it shouldn't be a limitation at all.\"\u003cbr/\u003eSUPERCAPTION:  Howard Decker, Chief Curator - National Building Museum\u003cbr/\u003eThe future of concrete not only lies in products like \"Litracon,\" but also new building materials using concrete as the foundation.\u003cbr/\u003eA new, ultra-high performance concrete with modern fibers woven through the mixture becomes self-reinforcing once the form is set and can be sliced to as thin as one-tenth of an inch thick.\u003cbr/\u003eIt can also be spun, like yarn, to create an intricate weave of geometric design.\u003cbr/\u003eVirtually all of today's buildings have a reinforced concrete skeleton made of strategically embedded metal rods surrounded by concrete.\u003cbr/\u003eThis need for a metal skeleton is also changing.\u003cbr/\u003eArchitectural and practical applications of \"Litracon\" are seemingly endless.\u003cbr/\u003eSOUNDBITE:  (English) \u003cbr/\u003e \"Imagine you're sitting on your patio and you want the light to come in ... but you want the privacy, well, this material will fill the bill.  Or even the wall, potentially, in one of the rooms of your home.  Then there are other practical uses because it transmits light and because shadows are cast on it, there's implications about security and life safety.  So, there's a lot of different kinds of applications that would be very easy to imagine.\"\u003cbr/\u003eSUPERCAPTION:  Howard Decker, Chief Curator - National Building Nuseum\u003cbr/\u003eTranslucent concrete is the big attraction at an exhibit on the uses of concrete at The National Building Museum in Washington, DC.\u003cbr/\u003e\"That's neat\"\u003cbr/\u003eAlthough only a small number of demonstration projects using \"Litracon\" have been built, several are on the drawing board. \u003cbr/\u003eOther interesting potential uses of concrete are now coming to the market.\u003cbr/\u003eConcrete is thought of as an option for kitchen counter-tops and flooring tile.\u003cbr/\u003eThere's also a new process for embedding on a concrete surface photographic images that change design motifs for interior decorators.\u003cbr/\u003eAnd, in addition to the hundreds of structures now being built entirely out of concrete, ongoing research suggests new uses in the near future.\u003cbr/\u003e\u003c/span\u003e\n\u003c/div\u003e\n\u003cdiv class='action-container flex justify-between'\u003e\n\u003cbutton aria-expanded='false' aria-label='Read more description' class='rp-full-description' type='button'\u003e\n\u003ci class='fai fa-solid fa-align-left'\u003e\u003c/i\u003e\n\u003cspan id='read_more'\u003eRead More\u003c/span\u003e\n\u003c/button\u003e\n\u003cdiv class='rp-report'\u003e\n\u003c/div\u003e\n\u003c/div\u003e\n\u003cdiv aria-labelledby='resource-details-heading' class='rp-info-section'\u003e\n\u003ch2 class='title' id='resource-details-heading'\u003eResource Details\u003c/h2\u003e\n\u003cdiv class='rp-resource-details clearfix'\u003e\n\u003cdiv class='detail'\u003e\n\u003cdl\u003e\n\u003cdt\u003eCurator Rating\u003c/dt\u003e\n\u003cdd\u003e\u003cspan class=\"star-rating\" aria-label=\"3.5 out of 5 stars\" role=\"img\"\u003e\u003ci class=\"fa-solid fa-star text-action\" aria-hidden=\"true\"\u003e\u003c/i\u003e\u003ci class=\"fa-solid fa-star text-action\" aria-hidden=\"true\"\u003e\u003c/i\u003e\u003ci class=\"fa-solid fa-star text-action\" aria-hidden=\"true\"\u003e\u003c/i\u003e\u003ci class=\"fa-solid fa-star-half-stroke text-action\" aria-hidden=\"true\"\u003e\u003c/i\u003e\u003ci class=\"fa-regular fa-star text-action\" aria-hidden=\"true\"\u003e\u003c/i\u003e\u003c/span\u003e\u003c/dd\u003e\n\u003c/dl\u003e\n\u003c/div\u003e\n\u003cdiv class='detail'\u003e\n\u003cdl\u003e\n\u003cdt class=\"educator-rating-title\"\u003eEducator Rating\u003c/dt\u003e\u003cdd\u003e\u003cdiv class=\"educator-rating-details\" data-path=\"/educator_ratings/rrp_data?resourceable_id=347406\u0026amp;resourceable_type=Boclips%3A%3AVideoMetadata\"\u003e\u003cspan class=\"not-yet-rated\"\u003eNot yet Rated\u003c/span\u003e\u003c/div\u003e\u003c/dd\u003e\n\u003c/dl\u003e\n\u003c/div\u003e\n\u003cdiv class='detail'\u003e\n\u003cdl\u003e\n\u003cdt\u003eGrade\u003c/dt\u003e\u003cdd title=\"Grade\"\u003eHigher Ed\u003c/dd\u003e\n\u003c/dl\u003e\n\u003c/div\u003e\n\u003cdiv class='detail'\u003e\n\u003cdl\u003e\n\u003cdt\u003eSubjects\u003c/dt\u003e\u003cdd\u003e\u003cspan\u003e\u003ca href=\"/search?grade_ids%5B%5D=259\u0026amp;search_tab_id=1\u0026amp;subject_ids%5B%5D=365223\"\u003eVisual \u0026amp; 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