有机酸改性研磨掺合料：对研磨效率、水化动力学和早期性能的影响
Organic acid-modified grinding admixtures: effects on grinding efficiency, hydration kinetics, and early-age performance.
摘要(中文译文)
本研究通过对市售三异丙醇胺（TIPA）、二异丙醇胺（DEIPA）和二乙二醇（DEG）基添加剂进行乙酸、丙酸和己酸的有机酸改性，提升了助磨剂（GAs）的性能。系统评价了掺加0.05%改性助磨剂和市售助磨剂所制备水泥的粒度分布、水化动力学（量热法、XRD和TGA）、微观结构发展（SEM）、凝结时间及早期抗压强度。结果表明，有机酸改性显著提高了粉磨效率。在改性添加剂中，己酸改性TIPA（M-TIPA-2）效果最为显著，可制得细颗粒含量增加的显著更细水泥。水化分析表明，M-TIPA-2显著加速了C₃S消耗和氢氧化钙（CH）生成，与参考水泥相比达到40%的替代水平。SEM观察证实，水化动力学的增强伴随着更致密、更均匀的微观结构的形成。所有助磨剂均缩短了凝结时间，其中TIPA基改性剂的缩短幅度最大（较参考组缩短22-26%）。此外，改性过程减轻了市售TIPA和DEIPA相关的早期强度降低，并增强了DEG基体系的强度性能。总体而言，研究结果表明，有机酸改性使助磨剂的作用超越了物理粉磨，使其能够作为水泥水化的化学调节剂。在此背景下，己酸改性TIPA成为一种高效添加剂，协同实现了粉磨效率提高、水化加速和早期水泥性能改善。
Abstract
In this study, the performance of grinding aids (GAs) was enhanced through the organic acid modification of commercially used triisopropanolamine (TIPA), diisopropanolamine (DEIPA), and diethylene glycol (DEG)-based additives using acetic, propanoic, and hexanoic acids. Cements produced with the modified and commercial grinding aids at a dosage of 0.05% were systematically evaluated for particle size distribution, hydration kinetics (calorimetry, XRD, and TGA), microstructural development (SEM), setting time, and early-age compressive strength. The results demonstrated that organic acid modification markedly improved grinding efficiency. Among the modified additives, hexanoic-acid-modified TIPA (M-TIPA-2) exhibited the most pronounced effect, producing a significantly finer cement with an increased fine particle fraction. Hydration analyses demonstrated that M TIPA 2 significantly accelerated both C₃S consumption and calcium hydroxide (CH) formation, reaching a 40% replacement level compared to the reference cement. This enhancement in hydration kinetics was accompanied by the development of a denser, more homogeneous microstructure, as confirmed by SEM observations. All grinding aids reduced setting times, with the greatest reductions observed with TIPA-based modifications (22-26% compared to reference). Furthermore, the modification process mitigated the early-age strength reductions associated with commercial TIPA and DEIPA and enhanced the strength performance of DEG-based systems. Overall, the findings demonstrate that organic acid modification extends the role of grinding aids beyond physical comminution, enabling them to act as chemical modulators of cement hydration. In this context, hexanoic-acid-modified TIPA emerged as a highly effective additive, offering a synergistic combination of enhanced grinding efficiency, accelerated hydration, and improved early-age cement performance.
如何引用
AMA
Yahya Kaya, Veysel Kobya, Yunus Kaya, Ali Mardani, Kambiz Ramyar. Organic acid-modified grinding admixtures: effects on grinding efficiency, hydration kinetics, and early-age performance.. Scientific reports. 2026; doi:10.1038/s41598-026-52296-y.
APA
Yahya Kaya, Veysel Kobya, Yunus Kaya, Ali Mardani, Kambiz Ramyar (2026). Organic acid-modified grinding admixtures: effects on grinding efficiency, hydration kinetics, and early-age performance.. Scientific reports. https://doi.org/10.1038/s41598-026-52296-y
GB/T 7714
Yahya Kaya, Veysel Kobya, Yunus Kaya, Ali Mardani, Kambiz Ramyar. Organic acid-modified grinding admixtures: effects on grinding efficiency, hydration kinetics, and early-age performance.[J]. Scientific reports, 2026 doi:10.1038/s41598-026-52296-y.
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