Patents for inventions in the field of measures for preventing and combating the freeze-thaw phenomenon of roads address a topic related to the evolution of technology. Of particular importance is the stabilization of the substrate of the road transport route. An invention (J. Hornegger, N. Zanfir, M. Alupoaie, 2012) relates to a mixture used for the substrate of access roads and / or platforms. This invention relates to another invention (Y. Kadono, T. Nakazato, E. Miura, T. Kitamura, 1975) about a paved roadbed composed of a lower roadbed layer, an intermediate layer made of sulfur, an upper roadbed layer and a surface top layer. Another invention (D. Lee, K. Hong-joo, 2016) relates to a repairing and reinforcing ultrarapid hardening mortar composition, and to a method for repairing and reinforcing a road surface. Another invention (M. Radu, F. Radu, L. V. Pasăre, I. A. Buzuriu, P. Pârvu, C. G. Mudreţchi, C. Răcănel, A. Burlacu, V. Tiron, 2018) relates to a process for preparing ecological composite asphaltic mixtures to be used as road structures.
- J. Hornegger, N. Zanfir, M. Alupoaie, Amestec pentru substratul căii, Brevet de invenţie RO 123402 B1 (2012)
- Y. Kadono, T. Nakazato, E. Miura, T. Kitamura, Paved roadbed, United States Patent US3858999A (1975)
- H. Sang-il, J. J. Woo, Anti-freezing effect improved asphalt concrete composition for roads and method of process thereof and concrete composition including the same, South Korea Patent KR101780347B1 (2002)
- D. Lee, K. Hong-joo, Mortar composition of ultra-rapid hardening type for repairing and reinforcing with enhanced freezing and thawing durability, salt damage resistance and crack resistance, and method of repairing and reinforcing deteriorated part of road, runway and L-type side gutter using the same, South Korea Patent KR101665945B1 (2016)
- A. V. Lăzărescu, H. Szilagyi, C. Baeră, A.C. Hegyi, V. Meiţă, Procedeu de realizare şi sistem de pavele, dale şi borduri stradale din microbeton geopolimer activat alcalin, fără conţinut de ciment, Brevet de invenţie RO 134758 A2 (2021)
- M. Radu, F. Radu, L. V. Pasăre, I. A. Buzuriu, P. Pârvu, C. G. Mudreţchi, C. Răcănel, A. Burlacu, V. Tiron, Tehnologie integrată de preparare a mixturilor asfaltice compozite ecologice cu adaosuri de produse obţinute prin prelucrarea unor deşeuri industriale, pentru realizarea de structuri rutiere performante, Brevet de invenţie RO 132578 A2 (2018)
- J. Jeong, Inject to prevent freezing of the road the system which jet the liquid which melts the ice, South Korea Patent KR100464356B1 (2002)