Water In Clay

Moist clay contains both chemically- and physically-bonded water. It is the latter which permeates between the clay particles, allowing them to slide over each other during the wet forming processes. As the formed clay slowly dries out before firing, a small proportion of the residual physically bonded water holds the clay in shape. On firing, the last of the physically bonded water is removed as the temperature exceeds 100°C.

Fig. 8.1 Sydney Opera House and ceramic tile roof detail. Architects: Jörn Utzon and Ove Arup. Photographs: Arthur Lyons

Fig. 8.1 Sydney Opera House and ceramic tile roof detail. Architects: Jörn Utzon and Ove Arup. Photographs: Arthur Lyons

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