Horst Wapler was the managing director of Fachverband Betonbohren und -Sägen Deutschland e.V. from 1997 to 2001. Later, he also became a member of the board, and, after his retirement, an honorary member of the IACDS. During his career, he strongly engaged in international cooperation and maintained a connection to the IACDS as a delegate. He organised and successfully managed numerous IACDS meetings in Germany, Austria and Switzerland. His passion was the development and establishment of the industry Diamond Award. Initially, it was organised at the national level among members of the Fachverband. Later, it became a worldwide competition. With this award, the IACDS still honours complex and innovative projects for controlled dismantling from all over the world. The IACDS and PDi magazine would like to honour his contribution to the concrete cutting community and expresses their deepest condolences to his family. Horst Wapler will always be remembered as a good man who was a passionate and devoted professional.