Damage mechanism of airport pavement concrete undergoing freeze-thaw: The coupling effects of low-concentration deicers and carbonation

IF 8 1区工程技术 Q1 CONSTRUCTION & BUILDING TECHNOLOGY Construction and Building Materials Pub Date : 2025-03-14 Epub Date: 2025-02-15 DOI:10.1016/j.conbuildmat.2025.140365

Jun Yang , Zhao Zheng , Xinpeng Ye , Jiahui Guo , Yongxin Fu , Kang Wang , Qian Liu , Bo Wu , Xue Ma , Hao Deng , Yuxiang Li

{"title":"Damage mechanism of airport pavement concrete undergoing freeze-thaw: The coupling effects of low-concentration deicers and carbonation","authors":"Jun Yang , Zhao Zheng , Xinpeng Ye , Jiahui Guo , Yongxin Fu , Kang Wang , Qian Liu , Bo Wu , Xue Ma , Hao Deng , Yuxiang Li","doi":"10.1016/j.conbuildmat.2025.140365","DOIUrl":null,"url":null,"abstract":"<div><div>In order to investigate the changes in pore structure, C-S-H gel structure, and its products in carbonated and non-carbonated airport pavement concrete under freeze-thaw cycles induced by airport deicers, this study examined the single-sided freeze-thaw damage of concrete exposed to five different airport deicers with a mass concentration of 3 %: potassium formate (PF), commercial potassium formate (PF-C), potassium acetate (PA), commercial potassium acetate (PA-C), and calcium magnesium acetate (CMA).Quantitative characterization techniques such as XPS NMR, and MIP were employed to evaluate the relevant parameters. The results show that carbonation improves the freeze-thaw resistance of concrete by reducing the porosity of the concrete surface layer, enhancing the polymerization degree of C-S-H gel, and increasing the Ca/Si ratio. During the freeze-thaw cycles, when carbonated or non-carbonated concrete was exposed to PF and PF-C, the harmful pores in the surface debris increased significantly, and spalling was more likely to occur in the cement paste layer with a low Ca/Si ratio, ultimately leading to more severe freeze-thaw damage. In contrast, CMA had the least impact on freeze-thaw damage. These findings provide practical insights for selecting suitable deicers and optimizing carbonation treatment to improve the durability of airport pavement concrete in cold climates.</div></div>","PeriodicalId":288,"journal":{"name":"Construction and Building Materials","volume":"467 ","pages":"Article 140365"},"PeriodicalIF":8.0000,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Construction and Building Materials","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0950061825005136","RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2025/2/15 0:00:00","PubModel":"Epub","JCR":"Q1","JCRName":"CONSTRUCTION & BUILDING TECHNOLOGY","Score":null,"Total":0}

引用次数: 0

Abstract

In order to investigate the changes in pore structure, C-S-H gel structure, and its products in carbonated and non-carbonated airport pavement concrete under freeze-thaw cycles induced by airport deicers, this study examined the single-sided freeze-thaw damage of concrete exposed to five different airport deicers with a mass concentration of 3 %: potassium formate (PF), commercial potassium formate (PF-C), potassium acetate (PA), commercial potassium acetate (PA-C), and calcium magnesium acetate (CMA).Quantitative characterization techniques such as XPS NMR, and MIP were employed to evaluate the relevant parameters. The results show that carbonation improves the freeze-thaw resistance of concrete by reducing the porosity of the concrete surface layer, enhancing the polymerization degree of C-S-H gel, and increasing the Ca/Si ratio. During the freeze-thaw cycles, when carbonated or non-carbonated concrete was exposed to PF and PF-C, the harmful pores in the surface debris increased significantly, and spalling was more likely to occur in the cement paste layer with a low Ca/Si ratio, ultimately leading to more severe freeze-thaw damage. In contrast, CMA had the least impact on freeze-thaw damage. These findings provide practical insights for selecting suitable deicers and optimizing carbonation treatment to improve the durability of airport pavement concrete in cold climates.

查看原文

微信好友朋友圈 QQ好友复制链接

本刊更多论文

机场路面混凝土冻融损伤机理：低浓度除冰剂与碳化的耦合作用

为了研究机场除冰剂冻融循环作用下碳化和非碳化机场路面混凝土孔隙结构、C-S-H凝胶结构及其产物的变化，研究了5种质量浓度为3 %的机场除冰剂对混凝土单侧冻融损伤的影响。甲酸钾（PF）、商用甲酸钾（PF- c）、醋酸钾（PA）、商用醋酸钾（PA- c）和醋酸钙镁（CMA）。采用定量表征技术，如XPS NMR和MIP来评估相关参数。结果表明：碳化通过降低混凝土表层孔隙率、增强C-S-H凝胶的聚合度、提高Ca/Si比，提高混凝土的抗冻融性能；冻融循环过程中，碳化或非碳化混凝土暴露于PF和PF- c时，表面碎屑中有害孔隙明显增加，Ca/Si比较低的水泥浆层更容易发生剥落，最终导致更严重的冻融损伤。相比之下，CMA对冻融破坏的影响最小。这些发现为选择合适的除冰剂和优化碳化处理以提高寒冷气候下机场路面混凝土的耐久性提供了实践见解。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文去求助

来源期刊

Construction and Building Materials 工程技术-材料科学：综合

CiteScore

13.80

自引率

21.60%

发文量

3632

审稿时长

82 days

期刊介绍： Construction and Building Materials offers an international platform for sharing innovative and original research and development in the realm of construction and building materials, along with their practical applications in new projects and repair practices. The journal publishes a diverse array of pioneering research and application papers, detailing laboratory investigations and, to a limited extent, numerical analyses or reports on full-scale projects. Multi-part papers are discouraged. Additionally, Construction and Building Materials features comprehensive case studies and insightful review articles that contribute to new insights in the field. Our focus is on papers related to construction materials, excluding those on structural engineering, geotechnics, and unbound highway layers. Covered materials and technologies encompass cement, concrete reinforcement, bricks and mortars, additives, corrosion technology, ceramics, timber, steel, polymers, glass fibers, recycled materials, bamboo, rammed earth, non-conventional building materials, bituminous materials, and applications in railway materials.