Joseph Aspdin

Joseph Aspdin (1788 – 20 Maart 1855) was 'n Britse messelaar en uitvinder. Hy kry algemeen krediet as die uitvinder van Portlandsement.

Aspdin het kunsmatige sement begin gebruik wat hy ontwikkel het deur kalk en klei te verbrand. Die kleur van die materiaal wat so verkry is, was baie soortgelyk aan dié van die Engelse kalksteen uit Portland, waarna Aspdin die produk wat hy ontwikkel het, genoem het. Hy het die Portlandsement op 21 Oktober 1824 gepatenteer.^[1]^[2]^[3]^[2]^[4]^[5]

Verwysings

↑ Leeds Parish Church, Marriage register, Page No 208, for 21 May 1811
↑ ^2,0 ^2,1 Courland, Robert (2011). Concrete planet : the strange and fascinating story of the world's most common man-made material. Amherst, N.Y.: Prometheus Books. ISBN 978-1-61614-481-4. Besoek op 28 Augustus 2015.
↑ Hewlett, Peter C., red. (2001). Lea's chemistry of cement and concrete (4th uitg.). Oxford: Butterworth-Heinemann. ISBN 0-340-56589-6.
↑ Rinde, Meir (2015). "Hard-Headed Man". Distillations. Chemical Heritage Foundation. 1 (2): 36–37. Besoek op 26 Maart 2018.
↑ Francis, A. J. (1978). The cement industry, 1796–1914 : a history. Newton Abbot: David and Charles. ISBN 0-7153-7386-2.

[church-1] Leeds Parish Church, Marriage register, Page No 208, for 21 May 1811

[Courland-2] 2,0 ^2,1 Courland, Robert (2011). Concrete planet : the strange and fascinating story of the world's most common man-made material. Amherst, N.Y.: Prometheus Books. ISBN 978-1-61614-481-4. Besoek op 28 Augustus 2015.

[Hewlett-3] Hewlett, Peter C., red. (2001). Lea's chemistry of cement and concrete (4th uitg.). Oxford: Butterworth-Heinemann. ISBN 0-340-56589-6.

[Rinde-4] Rinde, Meir (2015). "Hard-Headed Man". Distillations. Chemical Heritage Foundation. 1 (2): 36–37. Besoek op 26 Maart 2018.

[Francis-5] Francis, A. J. (1978). The cement industry, 1796–1914 : a history. Newton Abbot: David and Charles. ISBN 0-7153-7386-2.

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