Open AccessPolyurethane composite mortar for expansion joints on road bridge structures
Author(s) -
I. A. Izmaylov,
Tamara Rozovskaya,
E. N. Dolinnaya
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/709/4/044052
Subject(s) - durability , expansion joint , mortar , asphalt , joint (building) , bridge (graph theory) , materials science , structural engineering , composite number , polyurethane , composite material , forensic engineering , engineering , medicine
The article analyzes the main reasons for the low durability of road pavement in the zone of expansion joints. The main prerequisites for the use of polymer-based compounds for filling the transition zone between the asphalt concrete pavement and the metal profile of the expansion joint are considered. The results of the study of physical, mechanical, and operational properties of the polyurethane-based compound are given, and the increased durability of the proposed solution is justified compared to traditional solutions. A feasibility study of the above solution has been completed. A technical solution for the design of an expansion joint transition zone is proposed.