Opus caementicium
Lime-pozzolana harbour concrete still studied at Caesarea and Rome.
Hormigón · La cerámica hidráulica de las ciudades: cemento, agua, árido y casi siempre acero.
Hormigón did not arrive as a finished commodity. Roman pozzolana; Aspdin 1824; Hennebique RC around Rome → Leeds → Paris still explains who makes it and which tests it sits in.
Ten dated points, five eras and three milestones below are the spine — not a complete industrial history.
Lime-pozzolana harbour concrete still studied at Caesarea and Rome.
Hydraulic lime mix for a lighthouse.
Patent for “Portland” cement in Leeds.
Iron-reinforced cement — RC’s folk origin.
Patented RC frames spread in Europe.
Early US RC skyscraper, Cincinnati.
Mass concrete geopolitics.
High-range water reducers enabled HPC.
Reactive powder concretes.
Clinker substitution as climate policy.
Lime-pozzolana harbour concrete still studied at Caesarea and Rome.
Patent for “Portland” cement in Leeds.
Patented RC frames spread in Europe.
Mass concrete geopolitics.
Reactive powder concretes.
Iron-reinforced cement — RC’s folk origin.
Mass concrete geopolitics.
Clinker substitution as climate policy.
Knowing this timeline is how to read a mill certificate without treating Hormigón as timeless.
Líquido de silicato congelado: ventanas, botellas, fibras. A1, pero se rompe.
Global 58 💎Óxidos y carburos cristalinos para calor, desgaste y electrónica.
Global 64 🌲Compuesto anisótropo de celulosa crecido como árbol: carpintería y madera contralaminada.
Global 57