In situ Raman analysis of hydrating C3A and C4AF pastes in presence and absence of sulphate
In situ Raman analysis of hydrating C3A and C4AF pastes in presence and absence of sulphate
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DOI：
10.1179/174367606x120179
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发表时间：
2006-08-01
影响因子：
2.2
通讯作者：
Maitland, G.
中科院分区：
文献类型：
--
作者：
Black, L.;Breen, C.;Maitland, G.
拉曼光谱已被用于跟踪在不存在和存在硫酸钙（石膏）的情况下普通波特兰水泥（OPC）的两种主要组分C（3）A和C（4）AF的水化。拉曼光谱学使得能够对水合糊剂进行原位、真实的时间分析。通过X射线衍射分析的糊状物补充了拉曼数据，并确认样品组成。不同浆体的拉曼光谱的细微变化说明了C（3）A和C（4）AF之间水化行为的差异。二氧化碳对水化产物的影响也受到关注。
Raman spectroscopy has been used to follow the hydration of C(3)A and C(4)AF, two of the principal components of ordinary Portland cement (OPC), in the absence and presence of calcium sulphate ( gypsum). Raman spectroscopy enabled in situ, real time analysis of the hydrating pastes. Analysis of the pastes by X-ray diffraction complemented the Raman data and confirmed sample composition. Subtle changes in the Raman spectra of the different pastes illuminated differences in hydration behaviour between C(3)A and C(4)AF. The similarities and differences between the various systems are discussed. The influence of carbon dioxide on the hydration products has also received attention.