Steel Rebar. Reinforcing bar, or rebar, is a common steel bar that is hot rolled and is used widely in the construction industry, especially for concrete reinforcement.
These flows generally occur during periods of intense rainfall or rapid snow melt. They usually start on steep hillsides as shallow landslides that liquefy and accelerate to speeds that are typically about 10 miles per hour, but can exceed 35 miles per hour. The consistency of debris flows ranges from watery mud to thick, rocky mud that can carry large items such as boulders, trees, and cars.
Landslides. Movements of earth down a steep slope are called landslides. Landslides happen when hills or mountains become unstable. Slopes become unstable when the pieces of rock that form the slopes are not properly supported. Human activities, water, frost and ice can cause landslides.nlike earthquakes and volcanic eruptions that can change landforms in a matter of hours, changes caused by weathering take thousands or millions of years. The speed at which weathering forces work depends a lot on the action of water and the temperature of the area.