concrete

1 - The safety and the long-term durability of buildings are highly dependent on the strength of the selected concrete.

2 - Hydroelectric dams offer cheap, clean, renewable energy, but there are drawbacks to these concrete behemoths.

3 - Few, if any, of the statements made could be substantiated conclusively by concrete experimental evidence.

4 - As a concrete manifestation of the excellent state of regional relations, Slovenia, Austria, and Italy entered a joint bid to organize the 2006 Winter Olympic Games.

5 - Steel rods reinforce concrete structures when they are placed inside the concrete.