The impact of mono-ethylene glycol on ordinary Portland cement: Exploring grindability, workability, hydration, and mechanical properties

IF 10.8 1区工程技术 Q1 CONSTRUCTION & BUILDING TECHNOLOGY

Cement & concrete composites Pub Date : 2024-10-04 DOI:10.1016/j.cemconcomp.2024.105789

Hyunuk Kang , Jingwei Yang , Junil Pae , Seohyun Kim , Sung-Hoon Kang , Juhyuk Moon

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Abstract

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.

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单乙二醇对普通硅酸盐水泥的影响：探索可磨性、工作性、水化和机械性能

乙二醇基成分通常用作普通硅酸盐水泥（OPC）的研磨剂。然而，它们对可磨性和水化机理的影响尚未得到充分了解。本研究考察了不同浓度（0、0.025 和 0.05%）的单乙二醇（MEG）对 OPC 粉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，随着 MEG 用量的增加，这种效果更加明显。此外，添加 MEG 对 OPC 的水合特性也有很大影响。虽然铝酸盐相的反应性没有本质区别，但硅酸盐相的反应性在各个阶段都有所改善。这种影响随着 MEG 浓度的增加而增强。此外，碳酸钙的数量随着 MEG 的添加而增加，这表明 MEG 也在某种程度上促进了碳化。综上所述，可以得出结论：MEG 按比例提高了机械性能。

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来源期刊

Cement & concrete composites 工程技术-材料科学：复合

CiteScore

18.70

自引率

11.40%

发文量

459

审稿时长

65 days

期刊介绍： Cement & concrete composites focuses on advancements in cement-concrete composite technology and the production, use, and performance of cement-based construction materials. It covers a wide range of materials, including fiber-reinforced composites, polymer composites, ferrocement, and those incorporating special aggregates or waste materials. Major themes include microstructure, material properties, testing, durability, mechanics, modeling, design, fabrication, and practical applications. The journal welcomes papers on structural behavior, field studies, repair and maintenance, serviceability, and sustainability. It aims to enhance understanding, provide a platform for unconventional materials, promote low-cost energy-saving materials, and bridge the gap between materials science, engineering, and construction. Special issues on emerging topics are also published to encourage collaboration between materials scientists, engineers, designers, and fabricators.