Synchrotron X-RayMicrodiffraction Studiesof the Mortars of AncientRoman Concretes


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Jackson M. D., Chen H., Peterson J. G., Akgül Ç., Richards B.

Synchrotron Radiation, Cultural Heritage, Biomineralization, Dejoie Catherine,Martinetto Pauline,Tamura Nobumichi, Editör, Wiley Interdisciplinary Reviews: Forensic Science, New Jersey, ss.203-231, 2024

  • Yayın Türü: Kitapta Bölüm / Mesleki Kitap
  • Basım Tarihi: 2024
  • Yayınevi: Wiley Interdisciplinary Reviews: Forensic Science
  • Basıldığı Şehir: New Jersey
  • Sayfa Sayıları: ss.203-231
  • Editörler: Dejoie Catherine,Martinetto Pauline,Tamura Nobumichi, Editör
  • Orta Doğu Teknik Üniversitesi Adresli: Evet

Özet

This chapter reviews methods developed with synchrotron applications at beamline of the Advanced Light Source at the Lawrence Berkeley National Laboratory to describe the crystalline cementing fabrics of the mortars that bind the ancient concretes. Instructive examples show point analyses with the monochromatic X‐ray beam (8–10 KeV) in the cementing matrix and scoriae of the mortar of the substructure of the Markets of Trajan. Finally, the integration of monochromatic beam analyses of a fine‐grained, crystalline calcium‐aluminum‐silicate hydrate, Al‐tobermorite, with polychromatic beam analyses of a coarse‐grained, crystalline calcium chloroaluminate, hydrocalumite, are illustrated. Synchrotron X‐ray microdiffraction analyses of ancient Roman mortars have provided an exceptionally valuable window into the cementing fabrics of the concretes of architectural monuments in Rome and marine harbor structures in the Mediterranean region, yielding many discoveries into the exceptional resilience and longevity of these materials.