The role of sodium and sulfate sources on the rheology and hydration of C3A polymorphs

被引：43
作者：
Andrade Neto, Jose S. [1 ]
de Matos, Paulo R. [2 ,3 ]
De la Torre, Angeles G. [4 ]
Campos, Carlos E. M. [5 ]
Gleize, Philippe J. P. [3 ]
Monteiro, Paulo J. M. [6 ]
Kirchheim, Ana Paula [1 ]
机构：
[1] Univ Fed Rio Grande do Sul UFRGS, Programa Posgrad Engn Civil Construcao & Infraest, Av Osvaldo Aranha 99, BR-90035190 Porto Alegre, RS, Brazil
[2] Univ Fed Santa Maria UFSM, Coordenadoria Acad, Santa Maria, RS, Brazil
[3] Univ Fed Santa Catarina UFSC, Dept Engn Civil, Florianopolis, SC, Brazil
[4] Univ Malaga, Dept Quim Inorgan Cristalog & Mineral, Campus Teatinos S-N, Malaga 29071, Spain
[5] Univ Fed Santa Catarina UFSC, Dept Fis, Lab Difracao Raios X, Florianopolis, SC, Brazil
[6] Univ Calif Berkeley, Dept Civil & Environm Engn, Berkeley, CA 94720 USA
来源：
CEMENT AND CONCRETE RESEARCH | 2022年 / 151卷
关键词：
Cubic C(3)A; Orthorhombic C(3)A; Calcium sulfate; Hydration; Rheology; CALCIUM SULFOALUMINATE HYDRATE; X-RAY-DIFFRACTION; TRICALCIUM ALUMINATE; CRYSTAL-STRUCTURE; PORTLAND-CEMENT; PHASE; GYPSUM; WATER; ETTRINGITE; IMPACT;
D O I：
10.1016/j.cemconres.2021.106639
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
The higher reactivity of orthorhombic C(3)A (ort-C(3)A) in sulfate-containing solutions, compared with cubic C(3)A (cb-C(3)A), was previously related to the differences in crystal structure or the sodium in the ort-C(3)A pore solution. We analyzed the hydration of cb-C(3)A (in water and NaOH solution) and Na-doped ort-C(3)A in the presence of gypsum and hemihydrate. Calorimetry, in-situ XRD, TGA, and rheological tests were conducted. NaOH accelerated the hydration of cb-C(3)A, but ort-C(3)A still presented higher ettringite formation rate and earlier sulfate depletion. Ort-C(3)A pastes showed 10-20 times higher viscosities and yield stresses. Replacing gypsum by hemihydrate increased the ettringite precipitation rate and anticipated the sulfate depletion of ort-C(3)A but did not significantly influence cb-C(3)A hydration. The crystallization of hemihydrate into gypsum resulted in early (<10 min) stiffing of all C(3)A-hemihydrate pastes. Overall, the higher reactivity of ort-C(3)A is related to differences in crystal structure rather than the sodium in the pore solution.
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页数：15
相关论文
共 70 条
[1]   Adsorption of PCE and PNS superplasticisers on cubic and orthorhombic C3A. Effect of sulfate [J].
Alonso, M. M. ;
Puertas, F. .
CONSTRUCTION AND BUILDING MATERIALS, 2015, 78 :324-332
[2]   Effects of sulfates on the hydration of Portland cement - A review [J].
Andrade Neto, Jose da Silva ;
De la Torre, Angeles G. ;
Paula Kirchheim, Ana .
CONSTRUCTION AND BUILDING MATERIALS, 2021, 279
[3]   INVESTIGATION OF THE CRYSTAL-STRUCTURE OF GAMMA-CASO4, CASO4-CENTER-DOT-0.5 H2O, AND CASO4-CENTER-DOT-0.6 H2O BY POWDER DIFFRACTION METHODS [J].
BEZOU, C ;
NONAT, A ;
MUTIN, JC ;
CHRISTENSEN, AN ;
LEHMANN, MS .
JOURNAL OF SOLID STATE CHEMISTRY, 1995, 117 (01) :165-176
[4]   Hydration of tricalcium aluminate (C3A) in the presence and absence of gypsum -: studied by Raman spectroscopy and X-ray diffraction [J].
Black, L ;
Breen, C ;
Yarwood, J ;
Deng, CS ;
Phipps, J ;
Maitland, G .
JOURNAL OF MATERIALS CHEMISTRY, 2006, 16 (13) :1263-1272
[5]   INFLUENCE OF NA2O ON STRUCTURE AND PROPERTIES OF 3CAO.AL2O3 [J].
BOIKOVA, AI ;
DOMANSKY, AI ;
PARAMONOVA, VA ;
STAVITSKAJA, GP ;
NIKUSHCHENKO, VM .
CEMENT AND CONCRETE RESEARCH, 1977, 7 (05) :483-491
[6]   Dissolution and initial hydration behavior of tricalcium aluminate in low activity sulfate solutions [J].
Brand, Alexander S. ;
Feldman, Steven B. ;
Stutzman, Paul E. ;
Ievlev, Anton, V ;
Lorenz, Matthias ;
Pagan, Darren C. ;
Nair, Sriramya ;
Gorham, Justin M. ;
Bullard, Jeffrey W. .
CEMENT AND CONCRETE RESEARCH, 2020, 130
[7]  
Casson N., 1959, RHEOLOGY DISPERSE SY, P84, DOI DOI 10.1002/9781444391060
[8]   Coupled effects of curing stress and curing temperature on mechanical and physical properties of cemented paste backfill [J].
Chen Shunman ;
Wu, Aixiang ;
Wang, Yiming ;
Wang, Wei .
CONSTRUCTION AND BUILDING MATERIALS, 2021, 273 (273)
[9]   Impact of admixtures on the hydration kinetics of Portland cement [J].
Cheung, J. ;
Jeknavorian, A. ;
Roberts, L. ;
Silva, D. .
CEMENT AND CONCRETE RESEARCH, 2011, 41 (12) :1289-1309
[10]   Using ultrasonic wave reflection to monitor false set of cement paste [J].
Chung, Chul-Woo ;
Suraneni, Prannoy ;
Popovics, John S. ;
Struble, Leslie J. .
CEMENT & CONCRETE COMPOSITES, 2017, 84 :10-18
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