ROAD SCIENCE

Chemical additives for asphalt

Non-metallic building materials, namely, asphalt; chip sealing aggregates in the nature of asphalt, bitumen, sand, gravel, slag stone, crushed stone and recycled concrete; road surface dressings made of asphalt and bitumen; road surface materials, namely, roadway wearing course made primarily of asphalt and bitumen; road surface overlay made of asphalt and bitumen

Research on building construction buildings and plants; technical support services, namely, providing technical advice on pavement conditions for road construction and paving purposes; technical support services, namely, providing consultation in the field construction materials to be used for road construction paving purposes