What is Prestressed Concrete?

From Practical Engineering. Sometimes conventional reinforcement isn’t enough. The basics of prestressed concrete. Try Dashlane: https://www.dashlane.com/practicalengineering Use promo code “practicalengineering” to get 10% a one-year premium subscription. Prestressing reinforcement doesn’t necessarily make concrete stronger. But, it does increase the serviceability of concrete members by reducing the amount of deflection under load. This video explains the…

Was Roman Concrete Better?

From Practical Engineering. Comparing modern concrete to that of the western Roman empire. Support Practical Engineering by visiting www.brilliant.org/PracticalEngineering and sign up for free. More Videos About Concrete: – What is Concrete? (https://www.youtube.com/watch?v=UOHURuAf5iY) – Why Concrete Needs Reinforcement (https://www.youtube.com/watch?v=cZINeaDjisY) -Does Rebar Rust? (https://www.youtube.com/watch?v=PLF18H9JGHs) In this video, I discuss a few modern techniques that help improve…

Does Rebar Rust?

From Practical Engineering. Check out the first two videos on concrete if you haven’t seen them already: – What is Concrete? (https://www.youtube.com/watch?v=UOHURuAf5iY) – Why Concrete Needs Reinforcement (https://www.youtube.com/watch?v=cZINeaDjisY) While steel reinforcement solves one of concrete’s greatest limitations, it creates an entirely new problem: Corrosion of embedded steel rebar is the most common form of concrete…

Why Bridges Move…

From Practical Engineering. …and other musings on thermal movement of large civil works. This video is sponsored by Blue Apron. First 100 people to sign up will get $40 off their first two weeks of Blue Apron orders. Click here: http://cook.ba/2HO67T5 Most people have a certain intuition about thermal expansion, but you may not have…

What is Water Hammer?

From Practical Engineering. First 100 people to sign up will get $30 off their first Blue Apron order here: http://cook.ba/2hkRvlY. This video is sponsored by Blue Apron. Hydraulic transients (also known as water hammer) can seem innocuous in a residential setting, but these spikes in pressure can cause major damage to large pipelines and industrial…