The fund-raising, which offers new shares at a 12% discount, is expected to be ratified at its AGM later this month.
Breedon spent £10.8m last July buying Lincolnshire based C& G Concrete out of administration and acquired Nottingham Readymix for £900,000 at the start of this year.
It hopes to pick up further businesses and is eying any fall-out from the proposed mega-merger of Anglo-American and Lafarge’s UK operations.
The Competition Commission has already provisionally outlined that Larfarge and Anglo will need to dispose of a significant tranche of assets to gain clearance for the merger.
Executive chairman Peter Tom said: “We believe there is significant scope to further expand the Group and we remain committed to securing additional bolt-on acquisitions of earnings-enhancing aggregates related businesses.”