Concrete is one of 32 materials in this atlas, grouped under ceramics: history, structure, measured properties, process routes, uses, safety and market — not a product catalogue.
Scores compare Concrete with the rest of the atlas on strength, heat, fire behaviour, insulation, workability and circularity. They are editorial, not certificates.
Seven chapters follow. Fire and insulation claims name test families (Euroclass, ASTM E84, ISO 5660, KS F) rather than inventing a single safety number.
Deep introduction
Deep dive: Concrete
Concrete (C-S-H binder + aggregate) is a family of grades whose density ~2400 kg/m³, heat band does not melt; dehydrates and spalls, and fire letter A1.
What “the material” actually is
Concrete is sold as grades, not as a single substance. Chemistry C-S-H binder + aggregate, density ~2400 kg/m³, heat band does not melt; dehydrates and spalls.
This atlas treats Concrete as a system: mill route, coatings, tests and the cavity it sits in.
Heat, fire and insulation
Conductivity note: ~1.4 W/m·K. Insulation score 22/100 is relative to 32 entries — metals lose, VIPs and aerogels win.
Fire letter in editorial use: A1. Do not equate A1 with “safe in a blaze” or E with “illegal”. Assemblies decide.
How it is made and used
Origin: Roman pozzolana; Aspdin 1824; Hennebique RC, Rome → Leeds → Paris. The process chapter follows feedstock → conversion → forming → finish → install.
Uses span buildings to defence / safety. Pairings matter: steel.
Market and circularity
Producers below are landmarks, not an endorsement ranking. Prices are bands, not live quotes.
Circularity mark 30/100. Ask which scrap, which certificate, which year.
Related atlas
Around Concrete
Related atlas entries, a short glossary, and three threads that keep Concrete honest.
Circularity mark 30/100 — editorial, route-specific.
Typical melting or failure heat?
does not melt; dehydrates and spalls
What should it be paired with?
steel: The tensile partner (rebar).
Where is it specified?
Buildings, transport, energy and consumer goods — see the uses chapter.
Is the fire-performance score a building-code rating?
No. It is an editorial 0–100 teaching mark among materials in this atlas. A real wall or garment needs a named product test, thickness and assembly. This page is not a lab stamp.
When should I read insulation instead of fire?
Use the insulation pick when the question is heat flow — lining, loft, or a cold-bridge — and the fire pick when the question is how the same material behaves in flame. Both numbers already sit on this hub; they answer different jobs.
Does a high sustainability score mean I can skip fire protection?
No. Sustainability here is a relative atlas mark (growth, reuse, embodied story). Bamboo and timber can still char like wood. Fire protection stays a separate specification.
Why is bamboo missing in some languages?
A language URL is published only when the seven chapters are real prose in that language. Bamboo exists in English, Korean, Japanese, Chinese and Spanish. French, German, Portuguese and Russian stay withheld — earlier machine drafts leaked English, so those URLs are not opened.
Icons
1
Pantheon dome
Italy · 126 CE
Pantheon dome is a reference point in the public image of Concrete.
Ingalls Building
United States · 1903
Ingalls Building is a reference point in the public image of Concrete.
Hoover Dam
United States · 1936
Hoover Dam is a reference point in the public image of Concrete.
Burj Khalifa mix
UAE · 2010
Burj Khalifa mix is a reference point in the public image of Concrete.
Hennebique frame
France · 1890s
Hennebique frame is a reference point in the public image of Concrete.
6
Brutalist béton
Global · 1950s–
Brutalist béton is a reference point in the public image of Concrete.
Shotcrete tunnel
Global · 20th c.–
Shotcrete tunnel is a reference point in the public image of Concrete.
Roman marine
Italy · antiquity
Roman marine is a reference point in the public image of Concrete.
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