Hydraulic lime
Videos
Hydraulic lime is a general term for a variety of lime different from calcium oxide that sets by hydration, and consists of calcium silicate and calcium aluminate, compounds that can harden in contact
Smeaton's Eddystone Lighthouse. John Smeaton is credited with pioneering hydraulic lime in the 18th century, which led to the development of Portland cement and thus modern concrete. Painting by John Lynn.
Portland cement
Videos
Portland cement is the most common type of cement in general use around the world as a basic ingredient of concrete, mortar, stucco, and non-specialty grout. It was developed from other types of hydra
Hydraulic lime
…limes are more specifically identified as 'hydraulic lime' (HL), as defined European Norm 459 (EN-459), "Consists of lime and other materials such as Portland cement, blast furnace slag, fly ash, limestone filler and other suitable materials."; 'formulated lime' (FL) (EN-459) consists of "...mainly of hydrated lime…
Bags of Portland cement wrapped and stacked on a pallet.
Blue Circle Southern Cement works near Berrima, New South Wales, Australia
Plaque in Leeds, England commemorating Joseph Aspdin
William Aspdin is considered the inventor of "modern" Portland cement.