Technical Note: Materials used to build the wooden vault over the Plenary Hall in the Spanish Senate Buiding

TL;DRAbstract

[EN]The constituent materials used to build the wooden
\nvault over the Plenary Hall in the Spain’s Senate
\nBuilding (ca 1814-1820) are analyzed in this paper.
\nCharacteristics of gypsum mortar applied on pine
\nbeams, boards and blockboard, have been determined.
\nThe esparto (=needlegrass) fibre provides a framework
\nfor the gypsum mortar to ensure adhesion and forming
\nthe surface of the dome. Physical-mechanical
\nproperties of the burnt clay-lightened gypsum mortars
\nwere determined with laboratory tests, while the
\ncomposition of these materials was found with
\nXRD,SEM and IR.

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