Glycol-based components are commonly used as grinding agents in ordinary Portland cement (OPC). However, their effects on the grindability and hydration mechanism have not been fully understood. In this study, the effects of mono-ethylene glycol (MEG) of various concentrations (0, 0.025, and 0.05 %) on OPC grinding characteristics as well as hydration reaction were examined. The use of MEG improved the grinding performance of OPC powder, and this effect became more noticeable with increasing quantities of MEG. Moreover, the addition of MEG substantial influenced the hydration properties of the OPC. Although there was no substantial difference in the reactivity of the aluminate phases, the reactivity of the silicate phases improved at all stages. This effect intensified with increasing concentrations of MEG. Additionally, the amount of calcium carbonate increased with the addition of MEG, indicating that MEG somehow promotes carbonation as well. With all these effects, it was concluded that the MEG proportionally enhanced the mechanical performance.

中文翻译：

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单乙二醇对普通波特兰水泥的影响：探索可研磨性、加工性、水化和机械性能


乙二醇基成分通常用作普通波特兰水泥 （OPC） 的研磨剂。然而，它们对可研磨性和水化机制的影响尚未完全了解。在本研究中，研究了不同浓度 （0、0.025 和 0.05 %） 的单乙二醇 （MEG） 对 OPC 研磨特性和水化反应的影响。MEG 的使用改善了 OPC 粉末的研磨性能，并且随着 MEG 数量的增加，这种效果变得更加明显。此外，MEG 的添加显着影响了 OPC 的水合特性。虽然铝酸盐相的反应性没有实质性差异，但硅酸盐相的反应性在所有阶段都有所改善。这种影响随着 MEG 浓度的增加而加剧。此外，碳酸钙的量随着 MEG 的添加而增加，这表明 MEG 也以某种方式促进了碳酸化。通过所有这些影响，可以得出结论，MEG 成比例地提高了机械性能。