Effect of Fly Ash on Resistance to Sulfate Attack of Cement-based Materials

被引：9
作者：
Liu, Kaiwei [1 ]
Deng, Min [1 ]
Mo, Liwu [1 ]
机构：
[1] Nanjing Univ Technol, Coll Mat Sci & Engn, Nanjing 210009, Jiangsu, Peoples R China
来源：
TESTING AND EVALUATION OF ADVANCED BUILDING MATERIALS | 2013年 / 539卷
关键词：
Sulfate attack; Ettringite; Gypsum; Fly ash; CONCRETE; ENVIRONMENTS; BEHAVIOR;
D O I：
10.4028/www.scientific.net/KEM.539.124
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
The resistance to sulfate attack of mortars containing 0%, 20%, and 40% of fly ash cured in 5 wt. % sodium sulfate solution at 20 degrees C was investigated in this paper. Visual appearance, cracking analysis, velocity of ultrasonic wave and length change were applied to evaluate the sulfate resistance of mortars. The phases and microstructure of the reaction products due to sulfate attack were examined by XRD and SEM, and the pore structure of the mortars was analyzed by MIP. The effects of fly ash on the sulfate attack of mortars were analyzed. Results indicated that the addition of fly ash improved the resistance of sulfate attack significantly, this probably contributed to the pozzonlanic reaction of fly ash.
引用
收藏
页码：124 / 129
页数：6
相关论文
共 50 条
  • [21] Rheological benefits of biomass fly ash as filler replacement in cement-based materials
    Vanhove, Yannick
    Dossa, Joella Grace
    Page, Jonathan
    Djelal, Chafika
    [J]. CASE STUDIES IN CONSTRUCTION MATERIALS, 2025, 22
  • [22] A fresh perspective on effect of metakaolin and limestone powder on sulfate resistance of cement-based materials
    Hu, Lingling
    He, Zhen
    [J]. CONSTRUCTION AND BUILDING MATERIALS, 2020, 262
  • [23] Mechanistic modeling for coupled chloride-sulfate attack in cement-based materials
    Chen, Dingshi
    Guo, Wenhua
    Chen, Dinghui
    Guo, Liujun
    Cai, Baofeng
    Ye, Tongjie
    [J]. CONSTRUCTION AND BUILDING MATERIALS, 2024, 455
  • [24] External sulfate attack on cement-based materials in underground structures with the stray current
    Wang, Chong
    Fang, Zheng
    Zhuang, Xiaoying
    Chen, Qing
    Han, Kaihang
    Zhou, Shuai
    [J]. CONSTRUCTION AND BUILDING MATERIALS, 2025, 465
  • [25] Effect of temperature on durability of cement-based material to physical sulfate attack
    Jiang, Xing
    Mu, Song
    Yang, Zhiqiang
    Tang, Jinhui
    Li, Tian
    [J]. CONSTRUCTION AND BUILDING MATERIALS, 2021, 266
  • [26] Effect of Fly Ash on the Electrical Resistivity of Cement-based Materials During the Hydration Process
    Liao Y.
    Shen Q.
    Xu P.
    Liao G.
    Zhong X.
    [J]. Cailiao Daobao/Materials Reports, 2019, 33 (04): : 1335 - 1339
  • [27] Effect of fly ash on properties and hydration of calcium sulphoaluminate cement-based materials with high water content
    Gao, Meng
    Li, Mengying
    Wang, Jiahao
    Yang, Pengfei
    Xu, Mengge
    [J]. REVIEWS ON ADVANCED MATERIALS SCIENCE, 2024, 63 (01)
  • [28] Research on the sulfate resistance of cement-based materials incorporating dolomite powder
    Zhang, Xin
    Luo, Yu
    Yao, Wu
    [J]. FULLERENES NANOTUBES AND CARBON NANOSTRUCTURES, 2022, 30 (12) : 1180 - 1192
  • [29] Influence of limestone powder particle size on the sulfate resistance of cement-based materials under the coupling effect of time-varying temperature and sulfate attack
    Yang, Yonggan
    Gao, Peng
    Zhan, Binggen
    Yu, Qijun
    Wang, Jingfeng
    Zhang, Yunsheng
    [J]. JOURNAL OF BUILDING ENGINEERING, 2024, 98
  • [30] Hydration mechanism of low quality fly ash in cement-based materials
    Liu Shu-hua
    Kong Ya-ning
    Wang Lu
    [J]. JOURNAL OF CENTRAL SOUTH UNIVERSITY, 2014, 21 (11) : 4360 - 4367
12345