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What is Concrete?

Practical Engineering · explainer · Watch on YouTube

Civil engineering & constructionMaterials science

What it is

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.

Why Hacker News recommends it

Commenters link it as an approachable explanation of concrete basics in threads about Roman concrete, construction and sand supply.

  • 2 people recommended it
  • 2 different months
  • 1 strong recommendations
  • first 2018, last 2023

What HN commenters said

  1. “You're going to love this playlist from Practical Engineering [1].”

    Playlist explaining reinforcement and pre-stressing well

    walty, 2023-01 · Strong recommendation · in “Riddle solved: Why was Roman concrete so durable?”

  2. “This might help too”

    Explains concrete versus cement and reinforcement

    zen_of_prog, 2022-07 · Recommendation · in “How the Colosseum was built and why it was an architectural marvel”

Excerpts from Hacker News comments, linked to the originals. Summaries and labels were written by a language model from those comments.

Topics: concrete, cement, reinforced concrete, construction materials, practical engineering

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