Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Synchrotron X‐Ray Microdiffraction Studies of the Mortars of Ancient Roman Concretes
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.
Synchrotron X‐Ray Microdiffraction Studies of the Mortars of Ancient Roman Concretes
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.
Synchrotron X‐Ray Microdiffraction Studies of the Mortars of Ancient Roman Concretes
Dejoie, Catherine (Autor:in) / Martinetto, Pauline (Autor:in) / Tamura, Nobumichi (Autor:in) / JACKSON, Marie D. (Autor:in) / CHEN, Heng (Autor:in) / PETERSON, Jacob G. (Autor:in) / AKGUL, Cagla MERAL (Autor:in) / RICHARDS, Bryony (Autor:in)
24.12.2024
29 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
| Engineering Index Backfile | 1928
Workability of concretes and mortars
| Engineering Index Backfile | 1937