混凝土 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 混凝土 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.
常见问题
Is 混凝土 non-combustible?
Declared reaction class in this atlas: A1. Assemblies still need resistance tests.
Does 混凝土 insulate?
Thermal mark 22/100 versus the atlas. Conductivity note: ~1.4 W/m·K.
What is the density band?
~2400 kg/m³
How is it made?
Origin story: Roman pozzolana; Aspdin 1824; Hennebique RC (Rome → Leeds → Paris).
Can it be recycled?
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.