February 3-6, World of Concrete. Las Vegas Convention Center, Las Vegas. World of Concrete is an annual international event for the commercial concrete and masonry construction industries, which attracts over 1,700 suppliers spanning more than 900,000 net square feet of exhibits. On display are new products, technologies, tools and equipment. Outdoor exhibits and event areas bring hands-on demonstrations, resources and techniques. More than 150 seminars are held beginning a day before the exhibition.