硅酸盐通报 ›› 2026, Vol. 45 ›› Issue (6): 1903-1913.DOI: 10.16552/j.cnki.issn1001-1625.2025.1160
成子高1(
), 丛贇2, 张琰3, 李根1, 郅天一1, 谭洪波1(
)
收稿日期:2025-11-20
修订日期:2025-12-24
出版日期:2026-06-15
发布日期:2026-07-14
通信作者:
谭洪波,博士,教授。E-mail:thbwhut@whut.edu.cn作者简介:成子高(2002—),男,硕士研究生。主要从事水泥基材料改性的研究。E-mail:czgcailiao@163.com
基金资助:
CHENG Zigao1(
), CONG Yun2, ZHANG Yan3, LI Gen1, ZHI Tianyi1, TAN Hongbo1(
)
Received:2025-11-20
Revised:2025-12-24
Published:2026-06-15
Online:2026-07-14
摘要:
为提升水泥基材料的疏水性能,采用异丁基三乙氧基硅烷(IBT)与正硅酸四乙酯(TEOS)对P·I 52.5水泥净浆(水灰比0.35)进行单掺与复掺改性,IBT或TEOS的掺量设置为1%~6%(质量分数),并在固定IBT掺量3%的基础上复掺1%~3%的TEOS。通过流动度、凝结时间、抗压强度、接触角、毛细吸水系数(S)、水化热等测试,并结合SEM、FTIR、XRD等手段对水泥净浆进行表征。结果表明:复掺体系能显著增强表面疏水性,IBT-3%+TEOS-3%复掺使接触角增大至140.0°,较单掺3% IBT时的接触角增大了58.37%。在水分传输性能方面,IBT-4%将毛细吸水系数S由对照组的0.004 19 mm·s-1/2降至0.000 99 mm·s-1/2;在固定IBT掺量为3%的基础上复掺TEOS(1%~3%)时,S为0.002 93~0.003 63 mm·s-1/2,虽高于IBT-3%单掺组,但较对照组降低13%~30%。基于上述结果,本研究揭示了TEOS和IBT内掺改性水泥净浆的作用机制,为疏水型水泥基材料的设计提供了可操作依据。
中图分类号:
成子高, 丛贇, 张琰, 李根, 郅天一, 谭洪波. TEOS-IBT协同改性水泥净浆的疏水性能及机理研究[J]. 硅酸盐通报, 2026, 45(6): 1903-1913.
CHENG Zigao, CONG Yun, ZHANG Yan, LI Gen, ZHI Tianyi, TAN Hongbo. Hydrophobic Properties and Mechanism of TEOS-IBT Synergistically Modified Cement Paste[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2026, 45(6): 1903-1913.
| Chemical composition | CaO | SiO2 | Al2O3 | MgO | Fe2O3 | SO3 | Other |
|---|---|---|---|---|---|---|---|
| Mass fraction/% | 58.884 | 22.885 | 7.181 | 3.361 | 2.919 | 2.162 | 0.897 |
表1 硅酸盐水泥的主要化学成分
Table 1 Main chemical composition of Portland cement
| Chemical composition | CaO | SiO2 | Al2O3 | MgO | Fe2O3 | SO3 | Other |
|---|---|---|---|---|---|---|---|
| Mass fraction/% | 58.884 | 22.885 | 7.181 | 3.361 | 2.919 | 2.162 | 0.897 |
| Sample | Mass/g | |||
|---|---|---|---|---|
| Cement | Water | IBT | TEOS | |
| Control | 300 | 105 | 0 | 0 |
| IBT-1% | 300 | 105 | 3 | 0 |
| IBT-2% | 300 | 105 | 6 | 0 |
| IBT-3% | 300 | 105 | 9 | 0 |
| IBT-4% | 300 | 105 | 12 | 0 |
| IBT-5% | 300 | 105 | 15 | 0 |
| IBT-6% | 300 | 105 | 18 | 0 |
| TEOS-1% | 300 | 105 | 0 | 3 |
| TEOS-2% | 300 | 105 | 0 | 6 |
| TEOS-3% | 300 | 105 | 0 | 9 |
| TEOS-4% | 300 | 105 | 0 | 12 |
| TEOS-5% | 300 | 105 | 0 | 15 |
| TEOS-6% | 300 | 105 | 0 | 18 |
| IBT-3%+TEOS-1% | 300 | 105 | 9 | 3 |
| IBT-3%+TEOS-2% | 300 | 105 | 9 | 6 |
| IBT-3%+TEOS-3% | 300 | 105 | 9 | 9 |
表2 水泥净浆试块配合比
Table 2 Mix ratio of cement paste test blocks
| Sample | Mass/g | |||
|---|---|---|---|---|
| Cement | Water | IBT | TEOS | |
| Control | 300 | 105 | 0 | 0 |
| IBT-1% | 300 | 105 | 3 | 0 |
| IBT-2% | 300 | 105 | 6 | 0 |
| IBT-3% | 300 | 105 | 9 | 0 |
| IBT-4% | 300 | 105 | 12 | 0 |
| IBT-5% | 300 | 105 | 15 | 0 |
| IBT-6% | 300 | 105 | 18 | 0 |
| TEOS-1% | 300 | 105 | 0 | 3 |
| TEOS-2% | 300 | 105 | 0 | 6 |
| TEOS-3% | 300 | 105 | 0 | 9 |
| TEOS-4% | 300 | 105 | 0 | 12 |
| TEOS-5% | 300 | 105 | 0 | 15 |
| TEOS-6% | 300 | 105 | 0 | 18 |
| IBT-3%+TEOS-1% | 300 | 105 | 9 | 3 |
| IBT-3%+TEOS-2% | 300 | 105 | 9 | 6 |
| IBT-3%+TEOS-3% | 300 | 105 | 9 | 9 |
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