The Lime Cycle

Gallery House welcomes Brian Richer’s exhibition until June 28, a canadian well known for his heavy sculptures and use of traditional methods of stone carving to modern objects.

Currently working as the Creative Director of Canada’s leading design firm Castor, Richer is an acclaimed stone carver and conservator since 1993. Constantly testing the structure and aesthetic limits of materials, this new series of works reveal a simple truth about the world through sculptural forms.

“In a literal term the four geometric sculptures, created out of limestone, are changed on a molecular level. This is due to the thermal decomposition of limestone (CaCO3) in a lime kiln. What appear as objects slowly decomposing is accomplished by heating the material to above 825 °C, a process called calcination. This process drives off the carbon dioxide (CO2); leaving quicklime. The quicklime (CaO) is not stable and, when cooled, will spontaneously react with CO2 from the air until, after enough time, it will be completely converted back to calcium carbonate unless slaked with water to set as lime plaster or lime mortar. This process is called the Lime Cycle. What many people don’t know is that calcium carbonate is fundamental to western civilization’s built environment — it’s the stuff in between the bricks and holds the buildings together!”