A system 4 times cheaper than reinforced concrete. It is used for the development of large car parks, the realization of retaining walls, road works, drainage and roads, airports, etc.
Mara mfumo 4 nafuu zaidi kuliko kraftigare halisi. Ni kutumika kwa ajili ya maendeleo ya mbuga kubwa gari, utambuzi wa kubakiza kuta, kazi za barabara, mifereji ya maji na barabara, viwanja vya ndege, nk