Formable materials
Formable materials are expected to change shape in order to adapt to a given condition. These might be pourable or bendable, and are discussed below:
- Concrete – This material is know since Ancient Rome for its flexibility of use and compressivestrength, but the first pre cast experiments were done in England in the beginning of the 20th century (McGuinness, 2017). This materialโs high fluid adaptability to the enclosing mould is explored in PreVault (Dave Pigram, Larsen, and O. E. Pedersen, 2011), where each voussoir is cast inside a customized PET plastic mould.
- Earth – A widely available material with a near-zero carbon footprint, adobe or CEB blocks are compression resistant and a promising construction material. Its usage in stereotomic works has not been fully explored yet, but a vault composed of similar adobe blocks with earth mortar to compensate variations has been successfully built (Varela, 2013), showing its potential.
- Plaster – A material used for fine detailing, it is easily pourable into moulds to typically create decorations in friezes or ceilings. Although it is not a material suitable for exterior conditions, it is easy to work with and its quick setting time make it worthy for prototyping casting systems. This material was used extensively by the author in the test of variable moulds for voussoirs (Azambuja Varela and Sousa, 2018).
- Plastic – Glass Fiber Reinforced Plastic is a light and strong material which is created on top of a mould by laying intertwined sheets of glass fiber with resin. Its wide usage in the hulls of boats or high performance vehicles has seen a counterpart in architecture mainly in the production of light facade panels. Stereotomic blocks built of this material have been experimented by Justin Diles (2018).
Works featuring this facet:
Facets:
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