This video is an informative piece of investigative journalism produced by Jose Espinosa for USA Green Stories. Although this media company now appears to be defunct, the following video remains interesting and applicable to today’s market for recycled surfacing materials.
In the video, Espinosa visits students at Pennsylvania State University as they investigate alkali-silica reactions of recycled glass aggregate to be used in concrete. According to Espinosa, concrete is second only to water as the most consumed material in the world. Because much of modern society relies on concrete, manufacturers and builders are searching for ways to become “green.”