Cement clinker is burnt at the rapid heating rate has the obvious effect of saving energy due to the low burning temperature and short burning time. This kind of technique is being researched actively in recent years,...Cement clinker is burnt at the rapid heating rate has the obvious effect of saving energy due to the low burning temperature and short burning time. This kind of technique is being researched actively in recent years, but the systematical theory investigation about the formation mechanism of clinker minerals under this condition has not been reported. In this paper, the formation mechanism of Portland cement clinker minerals in rapid burning was studied by means of DTA, SEM, EPMA, XRD and other conventional testing methods by using a special burning equipment.展开更多
The structure and the hydraulicity of C2F formed by the rapid burning have been studied with the help of XRD,IR, Mossbauer spectra ,the combined water and other analytical means. The technique of the rapid burning can...The structure and the hydraulicity of C2F formed by the rapid burning have been studied with the help of XRD,IR, Mossbauer spectra ,the combined water and other analytical means. The technique of the rapid burning can change the crystal structure of C2F. There exist more octahe-dra (Fe3+), less covalent bonding and more crystal defects in the structure of C2F. It is important that the hydraulicity of C2F can be enhanced by means of the technique of the rapid burning.展开更多
Two different methods of burning ce- ment clinker, a rapid burningmethod and an ordinary burning method used in rotary kiln,respectively, were compared in the laboratory. By means ofdetermining f_cao in the clinkers, ...Two different methods of burning ce- ment clinker, a rapid burningmethod and an ordinary burning method used in rotary kiln,respectively, were compared in the laboratory. By means ofdetermining f_cao in the clinkers, rate constant K_r and diffusionactivation en- ergy E_a in the two processes of clinker formationwere cal- culated by using Ginstling-Brounshtein diffusion equationand Arrhenius equation.展开更多
文摘Cement clinker is burnt at the rapid heating rate has the obvious effect of saving energy due to the low burning temperature and short burning time. This kind of technique is being researched actively in recent years, but the systematical theory investigation about the formation mechanism of clinker minerals under this condition has not been reported. In this paper, the formation mechanism of Portland cement clinker minerals in rapid burning was studied by means of DTA, SEM, EPMA, XRD and other conventional testing methods by using a special burning equipment.
文摘The structure and the hydraulicity of C2F formed by the rapid burning have been studied with the help of XRD,IR, Mossbauer spectra ,the combined water and other analytical means. The technique of the rapid burning can change the crystal structure of C2F. There exist more octahe-dra (Fe3+), less covalent bonding and more crystal defects in the structure of C2F. It is important that the hydraulicity of C2F can be enhanced by means of the technique of the rapid burning.
文摘Two different methods of burning ce- ment clinker, a rapid burningmethod and an ordinary burning method used in rotary kiln,respectively, were compared in the laboratory. By means ofdetermining f_cao in the clinkers, rate constant K_r and diffusionactivation en- ergy E_a in the two processes of clinker formationwere cal- culated by using Ginstling-Brounshtein diffusion equationand Arrhenius equation.
