What is Concrete?
Practical Engineering · 2 则 HN 推荐
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Practical Engineering gives a short introduction to concrete, covering the difference between concrete and cement, the ingredients, and reinforcement. It includes a hydraulic press demonstration of compressive strength.
HN 推荐的原因： Commenters link it as an approachable explanation of concrete basics in threads about Roman concrete, construction and sand supply.
“You're going to love this playlist from Practical Engineering [1].” 阅读 HN 讨论 ↗