Jules Bied

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Jules Bied (* 1864 ; † 1924 ) was the inventor of the alumina cement in 1908 .

He was a student of Henry Le Chatelier .

As director of the Lafarge Research Laboratory ( Laboratoire de la Société Pavin de Lafarge ), founded in 1887, he was looking for a sulphate-resistant cement to line railway tunnels through rocks with high concentrations of magnesium and sodium sulphate. In 1847 Louis Vicat (1786–1861) proposed a mixture of óxido ácido / óxido alcalino for resistance to sulfate.

His calcium aluminate cement, with the brand name Ciment Fondu , for which he received French patents 320290 and 391454, consists essentially of calcium aluminates, while Portland cements essentially contain calcium silicates. It is made from bauxite and limestone. Like Portland cement, it has a setting time of around three hours, but it hardens extremely quickly. It is also more resistant to aggressive environments (acids) and high temperatures.

literature

  • Bied J. Et Lecarme L .: Chaux Hydrauliques Et Ciments Dev La Société Pavin De Lafarge
  • Recherches industrielles sur les chaux, ciments et mortiers ; Paris: Dunod, 1926
personal data
SURNAME Goodbye, Jules
BRIEF DESCRIPTION French inventor
DATE OF BIRTH 1864
DATE OF DEATH 1924