Concrete; concrete panels; concrete slabs; non-metal floor and wall tiles; non-metal building cladding; pavers; non-metal stair treads and risers; concrete bollards; concrete sound barriers, namely, concrete-based cast-on-site and precast walls and wall elements used alongside transportation corridors for the purpose of deadening or reflecting the sound generated in these corridors from penetrating into the surrounding areas; bricks; concrete blocks; concrete composite panels; concrete cast-o...