Agrotechnical antierosion reinforcement of slopes of the linear earthen structures by hydroseeding with flyash utilization

Purpose Proposes to discuss the implementation of biological methods of the reinforcement and protection of slopes and dissemination to designers and builders of earthen structures. Designmethodologyapproach The methodology of the process developed consists of field experiments including plant selection, preparation of the slope, hydroseeding mass composition, structure and rheological properties, as well as observation of the growing process and proper management of the layer covering. Laboratory tests and field experiments were conducted. Findings The research results confirm that covering slopes with a hydroseeding layer contributes to a reduction of the erosion process. The most important effect of the protection process is the creation of favorable conditions for seedlings growing in the third leaf phase with the effect of compact green cover. Practical implications The research results could be an important basis for the development of legislation acts related to road building, including proper slope management, together with seeding, underseeding and prototechnical operations that should be done during the first two years for both shaded and sunny slopes. The next step should be the training of designers and builders, and implementation of the technology. Originalityvalue This technology is new in Poland. The authors have realized several hundred slopes with this technology. However, for further improvement of slopes, protection was a necessary realization of the research discussed in the paper.