Origin and technology of the Georgian brick at Fade Mansion, Dublin, built c. 1728
Citation:
S. Pavia, Origin and technology of the Georgian brick at Fade Mansion, Dublin, built c. 1728, Cadernos do Arquivo Municipal C ? M A R A M U N I C I P A L DE L I S B O A, 2? S?rie, 16, 2021, 47 - 62Download Item:
s_pavia 2021 Cadernos Fade Mansion Brick.pdf (PDF) 2.641Mb
Abstract:
This paper studies the provenance and firing technol-
ogy of the Fade Mansion brick. The microstructure
was studied with scanning electron microscopy (SEM),
mineral associations and transformation were deter-
mined with X-ray diffraction (XRD) and petrographic
analyses. The results evidenced that the bricks were
made with a decalcified, silica-based clay of glacio-flu-
vial origin, gathered locally. This agrees with the posi-
tion of the Mansion on a terrace of the River Liffey, and
with previous research on historic bricks made with
boulder clay. They were fired in kilns in an oxidising
atmosphere. The rubbers at window heads reached
lower temperatures which resulted in low vitrification,
leading to weathering. Initial vitrification structures
generally concur with the occurrence of clay miner-
als, indicating temperatures of c. 800°C. Continuous
vitrification is associated to the disappearance of clay
minerals, the sintering of hematite and/or high-tem-
perature phases and mica transformation, indicating
a wide temperature range >950-1200°C, which agrees
with the inconsistent brick properties.
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Author: Pavia, Sara
Type of material:
Journal ArticleSeries/Report no:
Cadernos do Arquivo Municipal C ? M A R A M U N I C I P A L DE L I S B O A2? S?rie
16
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Making Ireland , Nanoscience & MaterialsISSN:
2183-3176Licences: