He joins the leading UK building materials supplier as Managing Director of the division and will be part of the company's Executive Committee.
Concrete Products encompasses the company's concrete blocks, walling and roofing products, Charcon commercial landscaping arm, and Bradstone domestic landscaping business.
Dean started his career at Evode (now Bostik) before joining Knauf UK and progressing to become their Commercial Director for the UK & Ireland.
He was then promoted to be the UK and Ireland Managing Director. In 2020, he joined Marshalls PLC, initially leading several acquisition businesses before becoming Managing Director for their Landscape & Building Products division, reporting to the Group CEO.
Commenting on his new role, Dean said: "I'm delighted to have joined this fantastic organisation that is leading the way with innovative and sustainable building solutions. There are exciting times ahead for the business and for the division that I am now looking after."
Dragan Maksimovic, Chief Executive Officer for Aggregate Industries, said: "Ian has a proven track record in developing commercial and operational excellence and, from this, transforming businesses and their cultures. We are very much looking forward to him joining our leadership team and to him driving the strategic transformation of the division."
Dean replaces Pete Hollingworth, who has accepted a commercial role outside of the company.