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Trencadís

Trencadís is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Trencadís rather than just read about it. In short: Trencadís (Catalan pronunciation: [tɾəŋkəˈðis]), also known as pique assiette, broken tile mosaics, bits and pieces, memoryware, and shardware, is a type of mosaic made from cemented-together tile shards and broken chinaware. It is commonly associated with Antoni Gaudí (see below).

Trencadís — main illustration
Trencadís — illustration

Key takeaways

  • Trencadís belongs to science; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect Trencadís to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of Trencadís from memory before moving on to harder problems.

Reference excerpt

Trencadís (Catalan pronunciation: [tɾəŋkəˈðis]), also known as pique assiette, broken tile mosaics, bits and pieces, memoryware, and shardware, is a type of mosaic made from cemented-together tile shards and broken chinaware. It is commonly associated with Antoni Gaudí (see below). Glazed china and ceramics tend to be preferred, glass is sometimes mixed in as well, as are other small materials like buttons and shells. Artists working in this form may create random designs, pictorial scenes, geometric patterns, or a hybrid of any of these. Although as a folk art the method itself may be centuries old, the two most commonly used terms are both of modern origin. Trencadís, a Catalan term that means 'broken up', and by extension, 'broken up tiles', is the name for this method as it was revived in early 20th century Catalan Modernisme, while pique assiette is a more general name for the technique that comes from the French language. In French, pique assiette ('plate thief') is a term for a scrounger or sponger, and thus, as a name for this mosaic technique, it refers to the recycled or 'scrounged' nature of the materials.

Technique Traditional mosaics, such as classical Roman floors, are made up of individual tesserae, usually small cubes that are uniformly shaped and designed for their intended use. Trencadís differs in that the tesserae are nonuniform pieces broken from tiles and chinaware originally made for other uses. Trencadís is thus a form of bricolage, found object art, or recycled art. There are two main methods for trencadís. In the first, an initial design is drawn up and the ceramic fragments are carefully fitted into the design; in this case, the mosaic is only cemented together once all of the fragments have been placed. Alternatively, an artist may spontaneously arrange fragments without a prior design; here the success of the finished work depends greatly on their improvisation skills.

Notable artists and works

Antoni Gaudí and Josep Maria Jujol The Catalan modernist architects Antoni Gaudí and Josep Maria Jujol used trencadís in many projects, among which Barcelona's Parc Güell (1900–1914) is probably the most famous. Gaudí's first use of this technique was at the Güell Pavilions, where the sinuous architecture forced him to break the tiles in order to cover the curved surfaces. Gaudí tended to create patterns with his trencadís work, and he leaned towards brightly colored glazed ceramic shards. He often used discarded pieces of ceramic tile collected from the factory Pujol i Bausis located in Esplugues de Llobregat, as well as pieces of white ceramic from broken cups and plates discarded by other Spanish manufacturers.

Demetrio Ribes The Valencian architect Demetrio Ribes used trencadís extensively for decoration in the hall of Valencia North Station in 1907.

Raymond Edouard Isidore In France, the term pique assiette is most closely associated with Raymond Edouard Isidore (1900–1964) a French graveyard sweeper and folk artist. Starting in the late 1930s, he spent 30 years covering both the inside and outside of his house as well as his furniture and his garden walls with mosaics. He found his materials in the surrounding fields and quarries, in the public dump, and at auctions. This habit of scavenging earned him the nickname "pique assiette" later shortened to "picassiette". Isidore, a very religious man, created many of his mosaic scenes with Christian personages and symbols. He also built a "sweeper's throne" and a "sweeper's tomb" covered in pique assiette. As the mosaics expanded, the project became more widely known, and in 1954, Pablo Picasso visited Isidore's house. Today, the house is a tourist attraction near Chartres known as "Maison Picassiette".

Watts Towers

The Watts Towers in Los Angeles were built over a period of 30 years by Simon Rodia, a construction worker and tile mason. Begun in 1921, the 17 interconnected towers were decorated with fragments of porcelain, tile, glass, seashells and other found objects. Rodia built them without a premade plan, using damaged pieces from local tile companies and materials scavenged by neighborhood children.

Bridge of the Dragon A contemporary example is the Bridge of the Dragon, which crosses the Guadaíra River at Alcalá de Guadaíra. The bridge's support structure emulates a dragon's body and is covered in trencadís. Designed by engineer José Luis Manzanares, it was directly inspired by Gaudí's dragon fountain in Parc Güell.

Memory jugs

A related form is the memory jug, an American folk art form that memorializes the dead. The memory jug is a vessel with a mosaic-like surface decoration of glass and ceramic shards, seashells, trinkets, coins and other small objects, especially objects associated with a specific dead person. Most known examples date back no further than the early 20th century.

Gallery

References

Further reading Fassett, Kaffe, and Candace Bahouth. Mosaics (2001) Marshall, Marlene Hurley. Making Bits and Pieces Mosaics (1998) Wallach, Mara. Making Mosaics with Found Objects (2010)

External links Media related to Trencadís at Wikimedia Commons

Illustrations

Trencadís: Dragon with trencadís at the entrance of Parc Güell overlooking Barcelona.
Dragon with trencadís at the entrance of Parc Güell overlooking Barcelona.
Trencadís illustration
Trencadís illustration
Trencadís illustration
Trencadís illustration

Worked examples

Example 1 — a first encounter with Trencadís

Start with the simplest possible case. Write down what Trencadís claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Trencadís before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Trencadís ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Trencadís

In research
Trencadís appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses Trencadís in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
Trencadís is common in secondary-school and first-year university syllabi. It links to neighbouring topics Culture of Catalonia, Design, Modernisme architecture, so understanding it makes those chapters shorter.
In everyday life
Look for Trencadís outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.
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How to study Trencadís in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Trencadís means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain Trencadís out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Trencadís in simple terms?

Trencadís (Catalan pronunciation: [tɾəŋkəˈðis]), also known as pique assiette, broken tile mosaics, bits and pieces, memoryware, and shardware, is a type of mosaic made from cemented-together tile shards and broken chinaware. It is commonly associated with Antoni Gaudí (see below).

Why does Trencadís matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Trencadís?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Trencadís.

Tags

  • Culture of Catalonia
  • Design
  • Modernisme architecture
  • Mosaic

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