LONDON (Reuters) - U.S. cement maker Summit Materials (SUM.N) has made a $3.8 billion offer for rival Ash Grove Cement (ASHG.PK), a source familiar with the matter told Reuters, hoping to trump an earlier takeover bid from Irish building materials firm CRH Plc (CRH.I).

Ash Grove said earlier on Friday that it had received a new bid from an unnamed party which valued the business at $3.7-$3.8 billion.

ADVERTISEMENT

The source said Summit Materials' bid was submitted on Thursday and is currently being considered by Ash Grove's board.

It could be the start of a bidding war with CRH, which last month agreed to buy Ash Grove for a total consideration of $3.5 billion.

(Reporting By Pamela Barbaglia; Editing by Rachel Armstrong)