Aluminium etched concrete

Experiment

The sample shows an experiment with coloured mortar and aluminium foil.

Material

Metal
Minerals and stone

Craft

Stone-masonry

General Technique

Surface modifying

Specific Technique

Chemical change of material colour

Properties & Qualities

Application

Sample making

Qualities

Colourful, Opaque, Textured / tactile

Colour

Blue, Brown

Sample Information

Date of creation

March 9, 2023

Dimensions

9x12cm

Process & Production

Mortar with blue colour pigments is cast onto a piece of crumpled household aluminium foil. The high amount of aluminium oxide on the surface of the aluminium foil causes a chemical reaction like how certain types of etching chemistry for clogged drains works. The result is a change of colour as the blue mortar turns brown.

Credits

Craft Maker

OsloMet - Oslo Metropolitan University – Department of Product Design

Photographer

OsloMet - Oslo Metropolitan University