"At the end of June, volume was down 16 per cent down" over the same period last year, to 24.34Mt, said the head of the associatiom, Jean Martin-Saint-Leon.
"We will finish the year between 15 and 18 per cent down," he told a news conference.
"We are in a rather difficult situation, with volumes at a level that we have not seen for years," said Martin-Saint-Leon, who is also head in Spain of Lafarge.