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碱激发铝污泥灰涂层材料水化特性与耐酸腐蚀特性

杨静,  程成,  任昱杰,  刘兴邦,  赵勇,  黄雨洁,  卢金锁

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文章导航 > 环境工程  > 2025 >  43(1): 195-203
彭小红, 邱兆文. 从道路设计角度改善交通空气质量的可行性分析[J]. 环境工程, 2016, 34(9): 76-79. doi: 10.13205/j.hjgc.201609017
引用本文: 杨静, 程成, 任昱杰, 刘兴邦, 赵勇, 黄雨洁, 卢金锁. 碱激发铝污泥灰涂层材料水化特性与耐酸腐蚀特性[J]. 环境工程, 2025, 43(1): 195-203. doi: 10.13205/j.hjgc.202501021
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YANG Jing, CHENG Cheng, REN Yujie, LIU Xingbang, ZHAO Yong, HUANG Yujie, LU Jinsuo. Hydration properties and acid corrosion resistance of alkali-activated aluminum sludge ash coating materials[J]. ENVIRONMENTAL ENGINEERING , 2025, 43(1): 195-203. doi: 10.13205/j.hjgc.202501021
Citation: YANG Jing, CHENG Cheng, REN Yujie, LIU Xingbang, ZHAO Yong, HUANG Yujie, LU Jinsuo. Hydration properties and acid corrosion resistance of alkali-activated aluminum sludge ash coating materials[J]. ENVIRONMENTAL ENGINEERING , 2025, 43(1): 195-203. doi: 10.13205/j.hjgc.202501021
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碱激发铝污泥灰涂层材料水化特性与耐酸腐蚀特性

doi: 10.13205/j.hjgc.202501021

  • 1. 西安建筑科技大学 环境与市政工程学院, 西安 710055;

  • 2. 西安建筑科技大学 陕西省环境工程重点实验室, 西安 710055;

  • 3. 西安建筑科技大学 西部绿色建筑国家重点实验室, 西安 710055

详细信息
    作者简介:

    杨静(1991-),女,副教授,主要研究方向为污水管网腐蚀与防腐技术研究。jingyang2020@xauat.edu.cn

    通讯作者:

    卢金锁(1977-),男,博士,教授,主要研究方向为给排水系统优化、雨水资源化。lujinsuo@xauat.edu.cn

Hydration properties and acid corrosion resistance of alkali-activated aluminum sludge ash coating materials

  • 1. School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China;

  • 2. Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China;

  • 3. State Key Laboratory of Green Building in West China, Xi'an University of Architecture and Technology, Xi'an 710055, China

摘要

    摘要
  • 摘要: 铝污泥(aluminum sludge)作为高铝含量的地聚物,可以作为一种补充胶凝材料以改善混凝土耐腐蚀性能。采用低温煅烧配合碱激发的污泥预处理手段,探讨了2种碱激发剂(NaOH和Na2SiO3)在不同投量下对水泥基涂层材料水化过程的影响,并且对涂层的耐酸腐蚀能力进行了探索。结果表明:350 ℃低温处理的铝污泥灰(ASA)替代部分水泥配合碱激发剂的作用,会促进水化铝酸钙(C-A-H)和水化硅铝酸钙(C-A-S-H)凝胶产物生成。6%Na2SiO3+10%ASA配比的涂层材料的耐酸腐蚀性能优于普通硅酸盐水泥,腐蚀中期能够形成Al(OH)3耐酸屏障。该成果为给水铝污泥的资源化利用提供了低能耗处理方法,其制成的涂层材料可以应用于酸腐蚀环境。
    Abstract: Aluminum sludge, a geopolymer with high aluminum content, can be used as a supplementary cementitious material to improve the corrosion resistance of concrete. In this study, the effects of two different alkali activators (NaOH and Na2SiO3) on the hydration process of cement-based coating materials under different dosages were investigated by using sludge pretreatment methods of low-temperature calcination combined with alkali activation, and the acid corrosion resistance of the coating was explored. The results showed that the substitution of aluminum sludge ash (ASA) at a low temperature of 350 ℃ with an alkali activator can promote the formation of calcium aluminate hydrate (C-A-H) and calcium aluminosilicate hydrate (C-A-S-H) gel products. The acid corrosion resistance of the coating material with the ratio of 6% Na2SiO3+10% ASA was better than that of ordinary Portland cement, and the coating material can form a layer of acid barrier, Al(OH)3, in the middle stage of corrosion. This work provides a low-energy consumption treatment method for resource utilization of aluminum sludge, and the coating material can be applied in acid-corrosive environment
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    • 参考文献(10)
  • [1] SALES A, SOUZA F R D, ALMEIDA F D C R, Mechanical properties of concrete produced with a composite of water treatment sludge and sawdust[J]. Construction and Building Materials, 2011, 25 (6): 2793-2798.
    [2] BENLALLA A, ELMOUSSAOUITI M, DAHHOU M, et al. Utilization of water treatment plant sludge in structural ceramics bricks[J]. Applied Clay Science, 2015, 118: 171-177.
    [3] RODRÍGUEZ N H, RAMÍREZ S M, VARELA M T B, et al. Re-use of drinking water treatment plant (DWTP) sludge: characterization and technological behaviour of cement mortars with atomized sludge additions[J]. Cement and Concrete Research, 2010, 40 (5):778-786.
    [4] SUKSIRIPATTANAPONG C, HORPIBULSUK S, BOONGRASAN S, et al. Unit weight, strength, and microstructure of a water treatment sludge-fly ash lightweight cellular geopolymer[J]. Construction and Building Materials, 2015, 94:807-816.
    [5] YANG J, REN Y, CHEN S, et al. Thermally activated drinking water treatment sludge as a supplementary cementitious material: properties, pozzolanic activity and hydration characteristics[J]. Construction and Building Materials, 2023, 365:130027.
    [6] WU M, WANG T, WU K, et al. Microbiologically induced corrosion of concrete in sewer structures: a review of the mechanisms and phenomena[J]. Construction and Building Materials, 2020, 239:117813.
    [7] WANG T, WU K, KAN L, et al. Current understanding on microbiologically induced corrosion of concrete in sewer structures: a review of the evaluation methods and mitigation measures[J]. Construction and Building Materials, 2020, 247:118539.
    [8] 陈烁宇,杨静,任昱杰,等.铝污泥灰改性混凝土水化及耐硫酸腐蚀特性[J].环境工程学报, 2023, 17(8):2684-2694.

    CHEN S Y, YANG J, REN Y J, et al. Hydration and sulfuric acid corrosion resistance of aluminum sludge ash modified concrete[J]. Chinese Journal of Environmental Engineering, 2023, 17(8): 2684-2694.
    [9] WILSON W, RIVERA-TORRES J M, SORELLI L, et al. The micromechanical signature of high-volume natural pozzolan concrete by combined statistical nanoindentation and SEM-EDS analyses[J]. Cement and Concrete Research, 2017, 91:1-12.
    [10] HERISSON J, HULLEBUSCH E D, MOLETTA-DENAT M, et al. Toward an accelerated biodeterioration test to understand the behavior of Portland and calcium aluminate cementitious materials in sewer networks[J]. International Biodeterioration & Biodegradation, 2013, 84:236-243.
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出版历程
  • 收稿日期:  2023-12-20
  • 录用日期:  2024-04-08
  • 修回日期:  2024-03-12
  • 网络出版日期:  2025-03-21
  • 刊出日期:  2025-03-21

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