compacted

adj

1. Closely or densely packed together.

   “You need to excavate and remove the topsoil, line the subsoil with a geotextile, then lay and compact hardcore. Follow this with a layer of compacted "hoggin" – compacted clay, gravel and sand. This is then sprayed with hot bitumen, and has a layer of pea shingle rolled into it.”

verb

1. (form-of, participle, past)simple past and past participle of compact