Palii V. Polymer-cement mortar for protection and repair of buildings and structures of railway

Object - polymer and cement solution on the basis of carbamide resin for a surface repair of buildings and constructions of railways; purpose - the development and optimization of polymer and cement solutions for the repair and electro-corrosion protection of buildings and constructions of railways; methods - standard and original methods of determining the rheological and physical-mechanical properties, physical-chemical methods of research, optimization of composition using mathematical modeling; novelty - in-depth presentation of mechanisms of action of carbamide resin and fly ash on the processes of hydration and structure formation of cement, theoretical and experimental justification of receiving of modified polymer and cement solutions on the basis of carbamide resin with the addition of fly ash with the best index of mix mobility and strength of polymer and cement stone, high physical-mechanical and operational properties of hardened mortar; results - the optimal compositions of polymer and cement solution and its application technology for the repair and protection of buildings and constructions of railways from the destructive action of direct leakage currents and flooding; scope - railway companies which are perform the maintenance and repair of buildings and constructions