Never mind Asphalt, Sandstone Roads

Asphalt has been used for the last 80 years. It greatly contributes to the urban heat island effect, reaching peak temperatures of 48–67°C. 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 5x the amount of oil released into the Gulf of Mexico. The Sand Stone Road project proposes the use of an organic process to create sandstone from sand as an alternate paving surface, thereby mitigating the harmful effects of asphalt.


The SandStone Road was an 2010 IIDA entry. Thanks to Designboom.

Designers: Thomas Kosbau & Andrew Wetzler