Friday, July 7, 2017

Bridge Unit Study - Lesson 8: Maintenance

Our bridge unit study ended with a discussion on maintenance.

Too often the cost of maintenance is not considered as part of the cost of a project. Whether you are building your home, a building or a bridge, maintenance should be a huge consideration. After all, if the structure breaks down, we will have to do without or start over from scratch.

Therefore, I was pleased that the book we chose to follow for our bridge unit study Bridges: Amazing Structures to Design Build and Test addressed the issue of maintenance. Painting, erosion, weather, corrosion, and traffic load are a few issues that determine how long the structure will last. The book does a good job of summarizing maintenance considerations.



To gain a better understanding of weather effects, my son explored corrosion with a science experiment. Putting steel wool into different types of water, he watched it over a 24 hour period to see how much it rusted. It was a very simple experiment and a great way to wrap up our bridge unit study.

Now where ever we go we take a good look at the different bridges around us.

 Honfleur Cable Stay Bridge (Normandie, France)

 London Bridge

Tower Bridge

Charles Bridge, Prague

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