Especialidades JA/Azulejos de mosaico/Respuestas

Azulejos de mosaico
División Norteamericana Artes y actividades manuales	Destreza: 1 Año de introducción: 2020

Requisitos

1

Dar una breve historia de los azulejos.

1a

¿Cuándo se usaron por primera vez?

1b

¿Cuáles fueron dos usos comunes a lo largo de la historia?

2

¿De qué tipo de material está hecho comúnmente los azulejos?

3

¿Cuál es la diferencia entre los azulejos esmaltados y no esmaltados?

4

¿Cuál es la diferencia entre la lechada con y sin arena? ¿En qué aplicaciones se usa cada tipo?

The main difference between unsanded and sanded grout is the presence or absence of sand. Unsanded cement-based grout is a smooth mixture of Portland cement, powdered pigments and water. Epoxy grouts are made of resin and hardener. Sanded cement-based grout and sanded epoxy grouts are basically the same as the previously mentioned mixtures but with sand added. The sand thickens the grout to prevent shrinking in the joints.

Both cement-based grouts and epoxy grouts come in sanded and unsanded types and can both be used with floor and wall tiles. Cement-based grouts are traditionally used in residential applications. Epoxy grouts are more ideal for situations where the tiles will be exposed to harsh materials, such as acids and greases.

Unsanded grout should be used in joints that are less than 1/8-inch-wide. It has a smooth texture and clings well to vertical surfaces, which makes it useful for grouting ceramic wall tiles. Sanded grout should be used for flooring and wall tile joints wider than 1/8 inch because it resists shrinkage and cracking. It is possible to use sanded grout in thinner joints, but forcing the bulky mixture into these joints is difficult, and pinholes may occur in your finished grout lines. Joints larger than 3/8 inch need heavily-sanded grout mixture, which is typically labeled as a wide-joint mixture and is available at most hardware and flooring stores.

The size of the tile joint usually dictates which type of grout to use, but sometimes the type of tile is the deciding factor. For example, unsanded grout is recommended for highly polished, easily scratched tiles such as marble because the aggregate in sanded grouts may damage these types of tiles. Unsanded grout should not be used in floor tiles, however, because the grout can crack and break under the pressure of floor traffic.

5

Nombrar tres herramientas comúnmente utilizadas para la instalación de azulejos.

• Tile Cutter
• Diamond Drill Bit
• Tile Mortar Mixer
• Buckets
• Tile Trowel
• Rubber Grout Float
• Tile Spacers
• Sponge
• Knee Pads
• Level
• Tape Measure

6

Realizar las siguientes actividades:

6a

Nombrar dos herramientas comúnmente utilizadas para cortar azulejos.

6b

Demostrar la capacidad de cortar azulejos con una de estas herramientas.

7

Describir cómo aplicar correctamente la lechada.

Good grout makes for a great tile job and here is the best way to apply grout. After the grout is totally mixed, apply a generous amount to the tile surface and use a foam tile float to distribute it completely filling the tile joints all the way to the bottom by pressing firmly. Once the joints are filled, hold the float at a steep angle and begin removing excess grout from the face of the tile. Always move in a diagonal direction. If you don’t, you run the risk of scooping out grout from the joints you just filled. Dip a cellulose grout sponge in water and wring out most but not all of the water. Then wash the face of the tiles, being careful not to pull the grout out of the joints. Cutting the sponge in half on a tile saw creates a nice square edge that’s ideal for getting into corners. For a final rinsing, dip the sponge in clean water and wring it out thoroughly. Then tip the sponge up so that only the leading edge is touching the tile. Move diagonally across the surface with straight overlapping strokes. Every couple of strokes, flip the sponge around and use one of the remaining clean edges.

8

Describir cómo sellar adecuadamente y terminar un proyecto de mosaico.

9

Completar un proyecto de mosaico como un salvamanteles, agarraderas de cocina u otros artículos domésticos. El artículo debe ser de por lo menos 6” por 6” (15.25 cm por 15.25 cm).

Referencias