“Intonaco”的意思、由来-开放百科全书

词条

Intonaco

释义

Types of intonaco
Types of stabilizers
References

Intonaco is an Italian term for the final, very thin layer of plaster on which a fresco is painted. The plaster is painted while still wet, in order to allow the pigment to penetrate into the intonaco itself. An earlier layer, called arriccio, is laid slightly coarsely to provide a key for the intonaco, and must be allowed to dry, usually for some days, before the final very thin layer is applied and painted on.^[1] In Italian the term intonaco is also used much more generally for normal plaster or mortar wall-coatings in buildings.

Intonaco is traditionally a mixture of sand (with granular dimensions less than two millimeters) and a binding substance.

Types of intonaco

Different types of intonaco are classified based on the binding material used:

Intonaco based on lime, where the only binding substance is hydrated lime
Intonaco lime/cement, where the binding element is a mixture of hydrated lime with Portland cement, with a majority of lime
Intonaco cement/lime, where the binding element is a mixture of hydrated lime, and Portland cement, with a majority of Portland cement
Intonaco with a plaster base, where the binding element is exclusively plaster

The sand utilized in the intonaco can be limestone or silicate, taken from a natural source such as a river or from sand that is pulverized.

Types of stabilizers

Intonaco can be stabilized using:

Lime
plaster
Calcium-sulfate based plaster
Terracotta-based cement

References

1. ^Ugo Procacci, in Frescoes from Florence,pp. 15-25 1969, Arts Council, London, gives a full account of the process.

2 : Painting techniques|Plastering

随便看

开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。