Cement has been around for a long time, historically since the Ancient Babylonians and Assyrians, whom used bitumen to bind materials together.  In modern times, Portland cement has been the leader in the cement industry since it was created in Britain in the mid-1700s.  Annually, Portland cement manufactures roughly 76.7 million metric tons of cement in the United States alone.  There’s no telling how much they’ve manufactured for China, who has used more concrete in the past 3 years than the US did in the entire 20th Century!