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More destructive testing to answer your questions about concrete. Concrete's greatest weakness is its tensile strength, which can be less than 10% of its compressive strength. So, we often reinforce it to create a composite material strong against all types of stress. This video briefly touches on conventional rebar and prestressed/post-tensioned reinforcement. Watch this video and the entire Practical Engineering catalog ad-free on Nebula: -Patreon: -Website: Marxist Arrow by Twin Musicom is licensed under a Creative Commons Attribution License Source: Tonic and Energy by Elexive is licensed under a Creative Commons Attribution License Source: This video was sponsored by Skillshare.
