Concrete in 1756: Smeaton Eddystone
Read the condition on Concrete before the nickname. Year 1756, line “Smeaton Eddystone,” figure 1. Fire letter in editorial use: A1. Do not equate A1 with “safe in a blaze” or E with “illegal”. Assemblies decide.
This atlas treats Concrete as a system: mill route, coatings, tests and the cavity it sits in. Conductivity note: ~1.4 W/m·K. Insulation score 22/100 is relative to 32 entries — metals lose, VIPs and aerogels win. 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. Circularity mark 30/100. Ask which scrap, which certificate, which year. Related atlas entries, a short glossary, and three threads that keep Concrete honest. Interior fire linings on concrete frames. The other mass-timber rival for mid-rise.
EN 13501-1 reaction-to-fire letter (A1–F), not a wall rating. Thermal conductivity in W/m·K. Lower means better bulk insulation. Declared performance after blowing-agent or moisture drift. The zone where heat or chemistry changes the datasheet. A named chemistry/process variant, not a brand slogan.
The label keeps Concrete, 1756, and 1. “Smeaton Eddystone” is the condition on the figure.1756
Figures to keep
- Year of the condition
- 1756
- Property figure
- 1
- Material
- Concrete
- Use line
- Smeaton Eddystone