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波特兰水泥熟料烧制期间所发生的化学和物理过程是由CaO-SiO_2-Al_2O_3-Fe_2O_3(C-S—A—F)系统,以及三元和二元体系的相图所确定的,但是,这种组成图所描绘的都是体系的平衡状态,而大家都知道,熟料的烧成过程是一个非平衡过程,鉴于这一事实,熟料的相组成可能与组成图所表征的较完全地冷却过程中的平衡状态极不相同。随冷却速率的大小不同,熟料的相组成很可能表现为玻璃态,或结晶态,或玻璃与晶态的混合态。
The chemical and physical processes that occur during the firing of Portland cement clinker are determined by the CaO-SiO 2 -Al 2 O 3 -Fe 2 O 3 (CS-A-F) system and the phase diagrams of the ternary and binary systems. However, This composition diagram depicts the equilibrium of the system, and everyone knows that the firing process of the clinker is a non-equilibrium process. Given this fact, the phase composition of the clinker may be more complete than that represented by the composition diagram. The equilibrium state during ground cooling is very different. With the different cooling rate, the phase composition of the clinker is likely to show a glassy state, or a crystalline state, or a mixed state of glass and a crystalline state.