Pathways and Practices for Improving the Durability of Engineering Materials under Extreme Plateau Climate Conditions

Luo Chenxu(China Aviation Oil (Tibet) Co., Ltd.)

Abstract

This paper addresses the durability issues of engineering materials under extreme plateau climate conditions, using a bridge on the Qinghai–Tibet Railway as a case study, and investigates methods and practices to enhance the durability of engineering materials. Through multi-scale material modification, structural-construction synergistic optimisation, and the establishment of an intelligent monitoring platform, practical application tests were conducted in engineering projects. The results show that the concrete spalling area was reduced by 82%, the rebar corrosion rate decreased to 1.1%, and the coating chalking grade stabilised at level I; the full lifecycle maintenance costs dropped by 46%, and the net present value increased by 130 million yuan. Therefore, the proposed methods for improving the durability of engineering materials can significantly enhance material durability, providing effective solutions for plateau engineering. 

Keywords

plateau engineering materials; durability enhancement; extreme climate; material modification; structural optimisation

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DOI: http://dx.doi.org/10.26549/frae.v8i1.33858