So he designed a construction system using tires as molds for concrete.

In a moment he will leave hardwood for concrete.

Nineteen fifty-eight must have been a very good year for concrete.

The idea in Barcelona was to use steel for the bar front and concrete on the floor.

I'm afraid that if we sit back and wait for concrete, it might be too late.

The area has also been used for mining copper, aluminum and concrete.

They are fighting for concrete, local political goals - not the destruction of America.

The city's standards for reinforced concrete had been set only two years earlier.

The town was also used as a major sand mine for ready made concrete.

The only expense in the new stadium came with materials for the press box and concrete.