Title: Durability evaluation modelling of rebar Al2O3 nano-particles epoxy coating

Authors: Huina Jia; Yali Li

Addresses: School of Civil Engineering, Shangqiu Institute of Technology, Shangqiu, 476000, China ' School of Civil Engineering, Shangqiu Institute of Technology, Shangqiu, 476000, China

Abstract: In order to solve the problems of low accuracy and long time of traditional evaluation methods, the durability evaluation model of reinforced Al2O3 nanoparticles epoxy coating was constructed. The prepared Al2O3 nanoparticles were coated with epoxy coating on the steel surface to obtain the Al2O3 nanoparticles epoxy coating. The amount of nano-Al2O3, the adhesion of the coating and the corrosion resistance of the coating were used as the durability evaluation indexes. The improved local linear embedding method was used to preprocess the evaluation index data, and the relative importance of the index was calculated by the analytic hierarchy process (AHP), so as to build the durability evaluation model. The processed evaluation index data were input into the model to obtain the durability score. The experimental results show that the evaluation accuracy of the model is up to 98% and the time is 5s. The practical application effect is good.

Keywords: rebar; Al2O3 nano-particles; epoxy coating; durability; evaluation model; AHP; analytic hierarchy process; durability score.

DOI: 10.1504/IJMMP.2021.121636

International Journal of Microstructure and Materials Properties, 2021 Vol.15 No.5/6, pp.370 - 382

Received: 02 Aug 2021
Accepted: 13 Oct 2021

Published online: 22 Mar 2022 *

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