The trend in all industries is towards consistent recycling. There is no way around this, especially in the construction industry. The Closed Substance Cycle Waste Management Act underlines this. Quality-monitored emvau-schlacke protects the environment by avoiding the mining of natural resources such as gravel and sand. And the fact that emvau-schlacke is produced in the greater Hamburg area means that there are no long transport routes for natural raw materials.