Binding Stone Cement Created in Rome

Binding stone cement was used in various formulas from early antiquity and used by Romans of circa 150 BCE, the ement recipe strong and water-resistant enough for truly permanent construction. The classic Roman pozzolana cement consists of slaked limestone mixed with clayey volcanic ash mined in Pozzuoli, Italy. Roman construction projects built with pozzolana remain standing to this day.

      150 BCE
      Pozzuoli, Italy

Additional Information:

  • Seawater is the secret to long-lasting Roman concrete – Nature
    Modern concrete uses a paste of water and Portland cement, a fine powder made mostly of limestone and clay, to hold together small rocks. But it degrades within decades, especially in harsh marine environments. Instead of Portland cement, the Roman concrete used a mix of volcanic ash and lime to bind rock fragments.Jul 3, 2017
  • Roman concrete – Wikipedia
    Roman concrete, also called opus caementicium, was a material used in construction in … Roman concrete was normally faced with stone or brick, and interiors might be further decorated by stucco, fresco … that have been ground fine to enhance binding; Geopolymer · Roman brick – A style of brick used in Ancient Roman …
  • Why modern mortar crumbles, but Roman concrete lasts …
    Jul 3, 2017 – History contains many references to the durability of Roman concrete, … in 79 B.C.E., describing concrete exposed to seawater as: “a single stone mass, … had dissolved components of the volcanic ash, allowing new binding …
    Historically lime or gypsum, mixed with rubble stones, have been used as binding agents in making a strong mortar. Roman contribution to this basic structural …
  • Materials –
    The stone can stand a pressure of 226/298 Kg/cmq, depending on its quality. … Roman Cement (most of the info from Benjamin Herring “The secrets of Roman … Lime is a binding agent that Romans obtained by heating limestone – which …

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