Concreto — história, estrutura, propriedades e usos

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Portland + SCMsBinder

A1; cover saves rebarFire

Clinker-intensiveCO₂

RC frameIcon

~1.4 W/m·Kλ

ceramicsFamily

Concreto 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 Concreto 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.

Introdução profunda

Deep dive: Concreto

Concreto (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

Concreto 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 Concreto 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.

Perfil

Resistência 70

Resistência ao calor 68

Desempenho ao fogo 90

Isolamento 22

Trabalhabilidade 60

Circularidade 30

Perguntas frequentes

Is Concreto non-combustible?

Declared reaction class in this atlas: A1. Assemblies still need resistance tests.

Does Concreto 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.

Ícones

Pantheon dome

Italy · 126 CE

Pantheon dome is a reference point in the public image of Concreto.

Ingalls Building

United States · 1903

Ingalls Building is a reference point in the public image of Concreto.

Hoover Dam

United States · 1936

Hoover Dam is a reference point in the public image of Concreto.

Burj Khalifa mix

UAE · 2010

Burj Khalifa mix is a reference point in the public image of Concreto.

Hennebique frame

France · 1890s

Hennebique frame is a reference point in the public image of Concreto.

Brutalist béton

Global · 1950s–

Brutalist béton is a reference point in the public image of Concreto.

Shotcrete tunnel

Global · 20th c.–

Shotcrete tunnel is a reference point in the public image of Concreto.

Roman marine

Italy · antiquity

Roman marine is a reference point in the public image of Concreto.

Ligue ou desligue ícones — cada barra reescala para o líder da sua seleção.

5 / 8

Confrontos

Mesma família, outras notas — escolha um duelo.

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Concreto vs Madeira

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