纳米气泡水对水泥基材料性能的影响研究
Study on the influence of nano bubble water on the properties of cement-based materials
关键词：
纳米气泡水；水泥基材料；凝结时间；流变性能；抗压强度
Key words：
Nano bubble water; Cement-based material; Setting time; Rheological property; Compressive strength
刊期：
2025年第9期
DOI：
10.19761/j.1000-4637.2025.09.006.04
文章编号：
基金项目：
广东省基础与应用基础研究基金项目（2023A15 15012136）。
作者：
温东昌 1，2，贾玉超 2，陈 仓1，*
单位：
1.深圳大学 土木与交通工程学院，广东 深圳 518000；2.中交路桥建设有限公司，北京 101100
摘要
摘 要：研究了纳米气泡水（NBW）在不同静置时间（0、0.5、1.0、2.0 h）下对水泥净浆凝结时间、流变性能、抗压强度、水化热的影响。结果表明：NBW中的气泡具有良好的稳定性；NBW的加入显著缩短了水泥净浆的凝结时间，随着静置时间的延长，水泥净浆的凝结时间增加；随着NBW静置时间的延长，水泥净浆任意剪切速率所对应的剪切应力基本呈增加趋势；与TW组相比，NBW的掺入可以提高试件的3 d抗压强度，7 d时，各组试件的抗压强度基本相同；NBW-1组水泥净浆的放热速率峰值及总体放热量均显著高于TW组。
Abstract: The influence of nano bubble water(NBW) on the setting time(0, 0.5, 1.0, 2.0 h), rheological property, compressive strength, and hydration heat of cement paste at different settling times was studied. The results indicate that the bubbles in NBW have good stability. The addition of NBW can significantly shorten the setting time of cement paste, and with the extension of settling time, the setting time of cement paste increases. With the extension of NBW settling time, the shear stress corresponding to any shear rate of cement paste shows a trend of increasing. Compared with the TW group, the addition of NBW can improve the compressive strength of the specimens at 3 d, but at 7 d, the compressive strength of each group of specimens is basically the same. The peak heat release rate and overall heat release of NBW-1 group cement paste are significantly higher than those of TW group.
结论
（1）NBW中的气泡具有良好的稳定性。
（2）NBW的加入显著缩短了水泥净浆的凝结时间，随着静置时间的延长，水泥净浆的凝结时间增加。随着NBW静置时间的延长，水泥净浆任意剪切速率所对应的剪切应力基本呈增加趋势。
（3）与TW组相比，NBW的掺入能提高试件的3 d抗压强度，其中，NBW-1组试件的抗压强度最高；但随着NBW静置时间的延长，其对抗压强度的提高效果减弱；随着龄期的延长，NBW组试件的抗压强度逐渐趋近于TW组，7 d时各组试件的抗压强度基本相同。
（4）NBW-1组水泥净浆的水化放热速率峰值及总体水化放热量均显著高于TW组。NBW可以显著促进水泥的早期水化。
（5）本文建议NBW的静置时间设置为0 h，此时水泥净浆的综合性能相对较好。此外，今后可深入研究NBW对水泥基材料耐久性能的影响，以扩大NBW的应用。
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引用本文
温东昌,贾玉超,陈仓.纳米气泡水对水泥基材料性能的影响研究[J].混凝土与水泥制品,2025(9):6-9.
WEN D C,JIA Y C,CHEN C.Study on the influence of nano bubble water on the properties of cement-based materials[J].China Concrete and Cement Products,2025(9):6-9.
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