Hierarchy classification:

1. top of the aat hierarchies
2. Materials Facet
3. Materials (hierarchy name)
4. materials (substances)
5. [materials by composition]
6. inorganic material
7. concrete
8. [concrete by property]

Anotations

Scope note:

Concrete that conforms to a set of standards for high workability, high strength, and high durability established by the Strategic Highway Research Program (SHRP), an infrastructure research initiative authorized by the U.S. Congress.