Power ultrasound-driven silane-modified cement paste: Insights into microstructural evolution, hydrophobic and mechanical performance

IF 9.7 1区化学 Q1 ACOUSTICS

Ultrasonics Sonochemistry Pub Date : 2025-09-28 DOI:10.1016/j.ultsonch.2025.107591

Guangqi Xiong , Ying Zhao , Zheng Fang , Yi Li , Yuanliang Ren , Xiaolong Jia , Bo Ran , Lei Xu , Shuai Zhou , Chong Wang

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Abstract

To address the potential adverse impact of silane on cement hydration, this study systematically investigates the effects of power ultrasound on the mechanical and hydrophobic properties, and the microstructure of silane-modified cement paste. Experimental results showed that ultrasonic treatment within the 240–720 W range significantly enhanced the compressive strength compared to the reference group. In particular, the 480 W group exhibited increases in compressive strength of 36.9 %, 10.7 %, and 7.9 % at 1, 3, and 28 days, respectively. X-ray diffraction and TG analysis revealed that this treatment accelerated the dissolution and hydration degree of the clinker. Contact angle measurements indicated that optimal hydrophobic performance was achieved at 720 W, with a contact angle of 133.0°, representing a 34.2 % increase compared to the reference group. These findings indicate that power ultrasound holds excellent potential for preparing the hydrophobic cementitious materials.

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功率超声驱动硅烷改性水泥浆体：微观结构演变、疏水性和力学性能的洞察。

为了解决硅烷对水泥水化的潜在不利影响，本研究系统地研究了功率超声对硅烷改性水泥浆体力学性能、疏水性能和微观结构的影响。实验结果表明，与对照组相比，240 ~ 720 W范围内的超声处理显著提高了抗压强度。特别是，480 W组在第1、3和28天的抗压强度分别增加了36.9%、10.7%和7.9%。x射线衍射和热重分析表明，该处理加速了熟料的溶解和水化程度。接触角测量表明，在720 W时达到最佳疏水性能，接触角为133.0°，与参考组相比增加34.2%。这些发现表明，功率超声在制备疏水胶凝材料方面具有良好的潜力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Ultrasonics Sonochemistry 化学-化学综合

CiteScore

15.80

自引率

11.90%

发文量

361

审稿时长

59 days

期刊介绍： Ultrasonics Sonochemistry stands as a premier international journal dedicated to the publication of high-quality research articles primarily focusing on chemical reactions and reactors induced by ultrasonic waves, known as sonochemistry. Beyond chemical reactions, the journal also welcomes contributions related to cavitation-induced events and processing, including sonoluminescence, and the transformation of materials on chemical, physical, and biological levels. Since its inception in 1994, Ultrasonics Sonochemistry has consistently maintained a top ranking in the "Acoustics" category, reflecting its esteemed reputation in the field. The journal publishes exceptional papers covering various areas of ultrasonics and sonochemistry. Its contributions are highly regarded by both academia and industry stakeholders, demonstrating its relevance and impact in advancing research and innovation.