J.CAC VOLUME 23 (1998)

A Reversible Structural Fill of Decreasing Compressive Strength for a Large, Decayed Wooden Sculpture

Eleonora Nagy

This paper describes the use of an epoxy resin/glass microspheres composite material to build a structural fill for a decayed, larger­than-life-size wooden sculpture. The fill, approximately 30 x 30 x 60 cm, supports the weight and maintains the balance of the sculpture and has a gradually decreasing compression resistance as it approaches the irregular, decayed surface of the wood. Concentrations of the fill material were chosen based on stress-strain curves obtained for various concentrations of composite samples. Basswood blocks were also inserted between composite layers to reduce the amount, and therefore the cost, of resin required. Treatment included building the fill in layers, inpainting, and reinstalling the sculpture on a base.

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