In-situ reaction of the very early hydration of C3A-gypsum-sucrose system by Micro-Raman spectroscopy

被引：15
作者：
Martinez-Ramirez, Sagrario [1 ]
Gutierrez-Contreras, Rocio [1 ]
Husillos-Rodriguez, Nuria [2 ]
Fernandez-Carrasco, Lucia [3 ]
机构：
[1] CSIC, IEM, C Serrano 121, Madrid 28006, Spain
[2] CSIC, Inst Ciencias Construcc Eduardo Torroja IETCC, C Serrano Galvache 4, Madrid 28033, Spain
[3] Univ Politecn Cataluna, Dept Construcc Arquitecton 1, E-08028 Barcelona, Spain
来源：
CEMENT & CONCRETE COMPOSITES | 2016年 / 73卷
关键词：
Hydration; Micro-Raman; Admixture; Ca3Al2O6; Sucrose; ESEM/EDS; CEMENT; ALUMINATE; GYPSUM; SUCROSE; STATES;
D O I：
10.1016/j.cemconcomp.2016.07.020
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
This paper studied in situ, by Micro-Raman spectroscopy, the very early hydration of C(3)A in the presence and absence of sulphates and with sucrose as an additive. For C(3)A hydration in the absence of gypsum, when carbonation is not avoided, carbonate-AFm phases are formed, but in the presence of gypsum, hydroxi-AFm are the main phases. Ettringite is the AFm stable phase developed initially at 70 min of hydration with gypsum and no monosulphate is formed. In the presence of sucrose, this salt, instead of sulphate, is adsorbed over the surface of the C(3)A, avoiding its reaction with sulphates until sucrose desorption. Three hours are necessary to lead to ettringite formation. A nucleation poisoning/adsorption surface mechanism is proposed for added sucrose systems. (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码：251 / 256
页数：6
相关论文
共 20 条
  • [1] Hydration states of AFm cement phases
    Baquerizo, Luis G.
    Matschei, Thomas
    Scrivener, Karen L.
    Saeidpour, Mahsa
    Wadso, Lars
    [J]. CEMENT AND CONCRETE RESEARCH, 2015, 73 : 143 - 157
  • [2] Methods to determine hydration states of minerals and cement hydrates
    Baquerizo, Luis G.
    Matschei, Thomas
    Scrivener, Karen L.
    Saeidpour, Mahsa
    Thorell, Alva
    Wadso, Lars
    [J]. CEMENT AND CONCRETE RESEARCH, 2014, 65 : 85 - 95
  • [3] Cement hydration inhibition with sucrose, tartaric acid, and lignosulfonate: Analytical and spectroscopic study
    Bishop, Maximilienne
    Barron, Andrew R.
    [J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2006, 45 (21) : 7042 - 7049
  • [4] Hydration of tricalcium aluminate (C3A) in the presence and absence of gypsum -: studied by Raman spectroscopy and X-ray diffraction
    Black, L
    Breen, C
    Yarwood, J
    Deng, CS
    Phipps, J
    Maitland, G
    [J]. JOURNAL OF MATERIALS CHEMISTRY, 2006, 16 (13) : 1263 - 1272
  • [5] Application of thermo-Raman spectroscopy to study dehydration of CaSO4•2H2O and CaSO4•0.5H2O
    Chang, H
    Huang, PJ
    Hou, SC
    [J]. MATERIALS CHEMISTRY AND PHYSICS, 1999, 58 (01) : 12 - 19
  • [6] TRICALCIUM ALUMINATE HYDRATION IN PRESENCE OF LIME, GYPSUM OR SODIUM-SULFATE
    COLLEPARDI, M
    BALDINI, G
    PAURI, M
    CORRADI, M
    [J]. CEMENT AND CONCRETE RESEARCH, 1978, 8 (05) : 571 - 580
  • [7] The AFm phase in Portland cement
    Matschei, T.
    Lothenbach, B.
    Glasser, F. P.
    [J]. CEMENT AND CONCRETE RESEARCH, 2007, 37 (02) : 118 - 130
  • [8] Mechanisms and parameters controlling the tricalcium aluminate reactivity in the presence of gypsum
    Minard, Hne
    Garrault, Sandrine
    Regnaud, Laure
    Nonat, Andre
    [J]. CEMENT AND CONCRETE RESEARCH, 2007, 37 (10) : 1418 - 1426
  • [9] Pannetier N, 2001, MACROMOL SYMP, V166, P203, DOI 10.1002/1521-3900(200103)166:1<203::AID-MASY203>3.0.CO
  • [10] 2-I
12