Аналіз процесу застосування цементно-піщаних розчинів під час відновлення дорожніх водопропускних споруд із використанням металевих гофрованих конструкцій

Abstract. Problem. Today, the restoration of road culverts using metal corrugated structures is relevant and necessary, as they are in difficult operating conditions, which is the reason for their premature destruction. Goal. Сonducting an analysis of the dynamic viscosity of cement-sand solutions during the restoration of road culverts using metal corrugated constructions. Methodology. The hydraulic resistance analysis of the cement-sand solution during fogging of the inter-pipe gap and the dynamic viscosity analysis of the cement-sand solution were carried out. Results. Based on the conducted research, the need to improve the existing cement-sand solutions for inter-pipe clogging was established. Originality. The work considers the most common approaches to determining the hydraulic resistance to the movement of cement-sand mortar. The dynamic viscosity analysis of the cement-sand solution was performed. Practical value. The work considers the most common models describing the flow of an ordinary cementconcrete mixture (cement-sand mortar). An approach to determining the pressure loss when filling the inter-pipe gap is presented. The paper provides an analysis of the use of cement-sand mortars during the restoration of road culverts using metal corrugated structures. Based on the conducted analysis, the dependence of dynamic viscosity on the composition of the mixture and the water-cement ratio was established. The paper proposes general provisions for the restoration of road culverts using metal corrugated structures with the establishment of requirements for cement-sand mortar.