Porous concrete is different from normal concrete in that it has continuous pores. It is used as ecological concrete, as its pores provide the functions of drainage and sound absorption as well as enabling vegetation growth. However, since the material also has low strength and low freeze-thaw resistance, the Materials Research Team (formerly known as the Materials Research Division) examined its applicability to cold snowy regions.
The purpose of this study was to establish mix proportions, structures and applications for porous concrete suited to cold regions by examining technologies designed to enable the utilization of highly strong, durable and functional porous concrete for noise insulation walls and other roadside facilities, RC bridge wall rail and other road structures, and drainage pavement in heavily trafficked sections. The results are expected to contribute to automobile noise reduction and other roadside environment improvements based on utilization in cold snowy regions.