Hydration and hardening processes of Portland cements obtained from clinkers mineralized with fluoride and oxides
作者： Alina Bădănoiu , Jenica Paceagiu , Georgeta Voicu
DOI: 10.1007/S10973-010-1125-X
关键词: Oxide 、 Compressive strength 、 Portlandite 、 Differential thermal analysis 、 Chemical engineering 、 Clinker (cement) 、 Cement 、 Materials science 、 Fluoride 、 Mineralogy 、 Portland cement
摘要: The hydration and hardening processes of Portland cements prepared from clinkers mineralized with sodium fluoride and/or oxides (SnO2 or CuO) was studied. Type I (CEM I) were by grinding gypsum (5%) obtained the burning an industrial raw mix different mineralizers: fluoride, (CuO SnO2) mixtures oxide (NaF + CuO NaF SnO2). influence foreign ions on clinker morphology assessed scanning electronic microscopy (SEM) energy dispersive X-ray spectrometry (EDX). modified examined diffraction analysis (XRD) thermal techniques (TG DTA). main properties cements, i.e., flexural compressive strengths, setting time, soundness also determined. A good correlation between chemically bound water portlandite content in pastes hydrated 2–28 days strength developed mortars observed. mineralizers kinetic is different—0.5% 0.5% SnO2 their mixture increase rate cement processes, opposite to that reduce rate.
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Donald H. Campbell, Microscopical Examination and Interpretation of Portland Cement and Clinker ,(1986)
E. T. Stepkowska, J. L. Perez-Rodriguez, M. C. Jimenez de Haro, M. J. Sayagues, Study of hydration of two cements of different strengths Journal of Thermal Analysis and Calorimetry. ,vol. 69, pp. 187- 204 ,(2002) , 10.1023/A:1019902210255
Stepkowska Ewa T., Pérez-Rodríguez J. L., Sayagués M. J., Martínez-Blanes J. M., Calcite, vaterite and aragonite forming on cement hydration from liquid and gaseous phase Journal of Thermal Analysis and Calorimetry. ,vol. 73, pp. 247- 269 ,(2004) , 10.1023/A:1025158213560
Anna Emanuelson, Staffan Hansen, Erik Viggh, A comparative study of ordinary and mineralised Portland cement clinker from two different production units: Part I: Composition and hydration of the clinkers Cement and Concrete Research. ,vol. 33, pp. 1613- 1621 ,(2003) , 10.1016/S0008-8846(03)00115-7
A. Badanoiu, M. Georgescu, A. Puri, THE STUDY OF 'DSP' BINDING SYSTEMS BY THERMOGRAVIMETRY AND DIFFERENTIAL THERMAL ANALYSIS Journal of Thermal Analysis and Calorimetry. ,vol. 74, pp. 65- 75 ,(2003) , 10.1023/A:1026369501443
Suhua Ma, Xiaodong Shen, Xueping Gong, Baiqian Zhong, Influence of CuO on the formation and coexistence of 3CaO·SiO2 and 3CaO·3Al2O3·CaSO4 minerals Cement and Concrete Research. ,vol. 36, pp. 1784- 1787 ,(2006) , 10.1016/J.CEMCONRES.2006.05.030
L. D. Mitchell, J. C. Margeson, The effects of solvents on C–S–H as determined by thermal analysis Journal of Thermal Analysis and Calorimetry. ,vol. 86, pp. 591- 594 ,(2006) , 10.1007/S10973-006-7712-1
J Hill, J.H Sharp, The hydration products of Portland cement in the presence of tin(II) chloride Cement and Concrete Research. ,vol. 33, pp. 121- 124 ,(2003) , 10.1016/S0008-8846(02)00936-5
K. Kolovos, S. Tsivilis, G. Kakali, SEM examination of clinkers containing foreign elements Cement & Concrete Composites. ,vol. 27, pp. 163- 170 ,(2005) , 10.1016/J.CEMCONCOMP.2004.02.003
Anna Emanuelson, Angel R Landa-Cánovas, Staffan Hansen, A comparative study of ordinary and mineralised Portland cement clinker from two different production units Part II: Characteristics of the calcium silicates Cement and Concrete Research. ,vol. 33, pp. 1623- 1630 ,(2003) , 10.1016/S0008-8846(03)00114-5