First Place – Incheon International Green Design Competition


Sand. Stone. Road. is a means to replace the use of asphalt as a paving surface with an organic process to rapidly create sandstone from sand.

The world is suffering from a material found outside of every doorway. Asphalt has been used as the conventional paving material for the last 80 years. Extremely toxic chemicals are released in its production, installation, and are off-gassed throughout its lifetime.

Asphalt greatly contributes to the urban heat island effect, reaching peak temperatures of 48°-67° Celsius. At current consumption levels, approximately 28,000,000 barrels of crude oil were required to create south Korea’s 86,990 km roadway system. This is roughly 5 times the amount of oil released into the Gulf of Mexico during the Deep Water Horizon catastrophe.