Activity 4: Testing Student-made Concrete Decks

When a structural beam is loaded from above, the force creates compression on the upper surface and tension on the lower surface. Concrete can withstand ten times as much compression as it can tension. Since concrete is much less capable of supporting tension, it is along the bottom that steel reinforcement is most important.https://digitalcommons.imsa.edu/future_highway_theme1/1003/thumbnail.jp