Work

Study on erosion damage of aeolian sand concrete by wind-grit flow in Gobi gale area: laboratory experiment and numerical simulation

Year: 2025

Type: article

Abstract: The high-energy winds carrying sand and grit in the Gobi gale zone threaten infrastructure along transportation routes. The aeolian sand resources are abundant in this area. The use of aeolian sand instead of river sand to prepare concrete can reduce the construction cost. Therefore, in this paper, the method of replacing river sand with equal mass percentage is used to prepare aeolian sand concrete (ASC) with different amount of aeolian sand, and its erosion wear rule under the wind-grit flow (WGF) is studied. Using microscopic analysis, it clarifies the underlying mechanisms of this erosion and develops a parametric model to describe the erosion process. The E/CRC model has been enhanced by incorporating factors like aeolian sand replacement rate and grit size, leading to an erosion model specifically designed for ASC in Gobi environments. Numerical simulations analyze the velocity flow field around ASC and the pressure distribution on erosion surfaces, offering supplementary insights to the experimental results. These findings offer theoretical support for the durability of ASC in the Gobi wind-grit flow environment.

Source: Case Studies in Construction Materials

DOI: 10.1016/j.cscm.2025.e04420

Authors: Kai Zhang, Yonghui Yu, Yanhua Zhao, Bo Yang, Aojun Guo, Jianlong Cui

Institutions: Chinese Academy of Sciences, Lanzhou Jiaotong University, Northwest Institute of Eco-Environment and Resources, China Railway First Survey and Design Institute Group Co. Ltd.

Language: English

Topic: Erosion and Abrasive Machining

Subfield: Ecological Modeling

Field: Environmental Science

Domain: Physical Sciences

SDG: Industry, innovation and infrastructure

Open Access status: gold

Estimated APC paid: $2,660