Italcementi's i.light in place at the Italian pavilion at Expo 2010 (Photo: Italcementi)
Visitors to last year’s World Expo in Shanghai might have noticed that the outer walls of the Italian pavilion were kind of... unusual. Although they felt solid, and looked like concrete when viewed from an angle, light was able to pass through them. How was it possible? They were made from what the Italcementi Group refers to as “transparent cement,” and has trademarked as i.light. It’s definitely a unique substance, as it blurs the line between wall and window.