Synthesis and performance of aluminous cements containing zirconium and strontium as alternatives to the calcium aluminate cements designed for the production of high performance refractories

被引：12
作者：
Madej, Dominika [1 ]
Sieron, Katarzyna [2 ,3 ]
Kruk, Andrzej [4 ]
机构：
[1] AGH Univ Sci & Technol, Fac Mat Sci & Ceram, Dept Ceram & Refractories, Al A Mickiewicza 30, PL-30059 Krakow, Poland
[2] Inst Power Engn, Res Inst, Mory 8, PL-01330 Warsaw, Poland
[3] Dept CEREL, Tech 1, PL-36040 Boguchwala, Poland
[4] Pedag Univ Cracow, Inst Technol, Ul Podchorzych 2, PL-30084 Krakow, Poland
来源：
CEMENT & CONCRETE COMPOSITES | 2022年 / 130卷
关键词：
Zr-containing cements designed for high-  temperature applications; Microstructure; Time-resolved electrochemical impedance  spectroscopy (TR-EIS); Mechanical performance; Refractory castables; ELECTROCHEMICAL IMPEDANCE SPECTROSCOPY; HYDRATION BEHAVIOR; CA7ZRAL6O18; CASTABLES; ADDITIONS; PASTES; SLAG;
D O I：
10.1016/j.cemconcomp.2022.104518
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
Composite cements belonging to the CaO-Al2O3-ZrO2 (C-A-Z) and CaO-SrO-Al2O3-ZrO2(C-Sr-A-Z) systems were evaluated as alternatives to calcium aluminate cements (CACs) for use in the refractory castables technology. The mineralogical phases in the as-synthesized C-A-Z and C-Sr-A-Z clinkers confirmed by XRD and SEMEDS were CaAl2O4, Ca7ZrAl6O18 and CaZrO3 or (Ca,Sr)Al2O4, (Ca,Sr)Al4O7 and (Ca,Sr)ZrO3, respectively. The present work aimed at developing novel Zr-containing cements with excellent mechanical performance, i.e. modulus of rupture and cold crushing strength. Both hydration behavior of the C-A-Z, C-Sr-A-Z, CAC and their hydration products, were studied with isothermal calorimetry, XRD, SEM-EDS and NMR. Impedance camera instrument was firstly successfully applied for time-resolved electrochemical impedance spectroscopy measurements under nonstationary conditions and record the time-dependent evolution of the Nyquist plots for hydrating cement pastes. A sharp increase in the real part of impedance Z' versus hydration time were corresponded to the second exothermic peak detected on the calorimetry curves.
引用
收藏
页数：17
相关论文
共 29 条
  • [1] HYDRATION OF CALCIUM ALUMINATE CEMENTS - A SOLID-STATE AL-27 NMR-STUDY
    CONG, XD
    KIRKPATRICK, RJ
    [J]. JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1993, 76 (02) : 409 - 416
  • [2] Non-destructive tracing on hydration feature of slag blended cement with electrochemical method
    Dong, Biqin
    Li, Gui
    Zhang, Jianchao
    Liu, Yuqing
    Xing, Feng
    Hong, Shuxian
    [J]. CONSTRUCTION AND BUILDING MATERIALS, 2017, 149 : 467 - 473
  • [3] Characterization of calcium aluminate hydrates and related hydrates of cement pastes by 27Al MQ-MAS NMR
    Faucon, P
    Charpentier, T
    Bertrandie, D
    Nonat, A
    Virlet, J
    Petit, JC
    [J]. INORGANIC CHEMISTRY, 1998, 37 (15) : 3726 - 3733
  • [4] Influence of TiO2- and ZrO2-addition on the interaction of alumina castable with molten coal and gasifier slag
    Gehre, Patrick
    Aneziris, Christos G.
    Klinger, Mathias
    Schreiner, Marcus
    Neuroth, Markus
    [J]. FUEL, 2015, 150 : 252 - 260
  • [5] Effect of nano-YSZ and nano-ZrO2 additions on the strength and toughness behavior of self-flowing alumina castables
    Gogtas, Cem
    Lopez, Hugo F.
    Sobolev, Konstantin
    [J]. CERAMICS INTERNATIONAL, 2016, 42 (01) : 1847 - 1855
  • [6] AC IMPEDANCE SPECTROSCOPY .1. A NEW EQUIVALENT-CIRCUIT MODEL FOR HYDRATED PORTLAND-CEMENT PASTE
    GU, P
    XIE, P
    BEAUDOIN, JJ
    BROUSSEAU, R
    [J]. CEMENT AND CONCRETE RESEARCH, 1992, 22 (05) : 833 - 840
  • [7] The physical and mechanical properties of alumina-based ultralow cement castable refractories
    Gungor, A.
    Celikcioglu, O.
    Sahin, S.
    [J]. CERAMICS INTERNATIONAL, 2012, 38 (05) : 4189 - 4194
  • [8] Heikal M, 2004, CERAM-SILIKATY, V48, P185
  • [9] Exploiting in-situ solid-state NMR spectroscopy to probe the early stages of hydration of calcium aluminate cement
    Hughes, Colan E.
    Walkley, Brant
    Gardner, Laura J.
    Walling, Samuel A.
    Bernal, Susan A.
    Iuga, Dinu
    Provis, John L.
    Harris, Kenneth D. M.
    [J]. SOLID STATE NUCLEAR MAGNETIC RESONANCE, 2019, 99 : 1 - 6
  • [10] Synthesis and hydration behavior of calcium zirconium aluminate (Ca7ZrAl6O18) cement
    Kang, Eun-Hee
    Yoo, Jun-Sang
    Kim, Bo-Hye
    Choi, Sung-Woo
    Hong, Seong-Hyeon
    [J]. CEMENT AND CONCRETE RESEARCH, 2014, 56 : 106 - 111
123