Uniaxial rọba geogrid, mere nke elu molikula polymer nke polypropylene, na-ekpupụtara n'ime mpempe akwụkwọ na mgbe ahụ tụrụ n'ime ntupu ụkpụrụ mgbe niile na n'ikpeazụ gbatịa na transverse direction. Mmepụta a nwere ike hụ na iguzosi ike n'ezi ihe nke geogrid. Ihe PP na-elekwasị anya nke ukwuu ma na-eguzogide elongation mgbe a na-etinye ibu dị arọ ruo ogologo oge.