Rujukan Simen_Portland

  1. Chris Boyd (December 2001). "Recovery of Wastes in Cement Kilns" (PDF). World Business Council for Sustainable Development. Diarkibkan daripada asal (PDF) pada 2008-06-24. Dicapai 2008-09-25. 
  2. S.H. Kosmatka; W.C. Panarese (1988). Design and Control of Concrete Mixtures. Skokie, Illinois: Portland Cement Association. m/s. 15. ISBN 0-89312-087-1. As a generalization, probably 50% of all industrial byproducts have potential as raw materials for the manufacture of Portland cement. 
  3. 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 978-1616144814. Dicapai 28 August 2015. 
  4. Gillberg, B. Fagerlund, G. Jönsson, Å. Tillman, A-M. (1999). Betong och miljö [Concrete and environment] (dalam bahasa Swedish). Stockholm: AB Svensk Byggtjenst. ISBN 91-7332-906-1. Selenggaraan CS1: Pelbagai nama: senarai pengarang (link) Selenggaraan CS1: Bahasa yang tidak dikenali (link)
  5. "ASTM C185-15a, Standard Test Method for Air Content of Hydraulic Cement Mortar". West Conshohocken, PA: ASTM International. 2015. doi:10.1520/C0185-15A. Dicapai 16 May 2017. 
  6. "125 Years of Research for Quality and Progress". German Cement Works' Association. Archived from the original on 16 January 2015. Dicapai 30 September 2012. Selenggaraan CS1: BOT: Status original-url tidak diketahui (link)
  7. Dylan Moore. "Cement Kilns: Clinker Thermochemistry". 
  8. "Portland Cement".