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首页 > 过刊浏览>2024年第27卷第4期 >283-290. DOI:10.3969/j.issn.1007-9629.2024.04.001
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硅灰对硫铝酸盐水泥力学和电磁传输性能的影响
作者:
作者单位:

北京工业大学 城市建设学部，北京 100124

作者简介:

李 悦（1972—），男，河北唐山人，北京工业大学教授，博士生导师，博士.E-mail：liyue@bjut.cn

通讯作者:

李 悦（1972—），男，河北唐山人，北京工业大学教授，博士生导师，博士.E-mail：liyue@bjut.cn

中图分类号:

TU525

基金项目:

国家自然科学基金资助项目（52078015）


Effect of Silica Fume on Mechanical Properties and Electromagnetic Transmission Properties of Sulphoaluminate Cement
Author:
Affiliation:

Faculty of Architecture， Civil and Transportation Engineering， Beijing University of Technology，Beijing 100124， China

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    摘要:

    研究了硅灰掺量对硫铝酸盐水泥力学性能和电磁传输性能的影响.结果表明：随着硅灰掺量的增加，硫铝酸盐水泥的抗压强度和抗折强度均先增大后降低，硅灰的最优掺量为10%；硫铝酸盐水泥的电磁传输性能随着硅灰掺量的增加而增大，与未掺硅灰的样品相比，硅灰-硫铝酸盐水泥在3.94~5.99 GHz频段范围内电磁传输性能均有所提升，电磁透射率峰值最高提升了23.9%.

    Abstract:

    The effects of silica fume contents on the mechanical properties and electromagnetic transmission properties of sulphoaluminate cement were studied. The results show that with the increase of silica fume content， the compressive strength and flexural strength of sulphoaluminate cement increase first and then decrease， and the optimal content of silica fume is 10%. The electromagnetic transmission performance of sulphoaluminate cement increases with the increase of silica fume content. Compared with the sample without silica fume， the electromagnetic transmission property of silica fume-sulphoaluminate cement is improved in the range of 3.94-5.99 GHz. The peak value of electromagnetic transmittance is increased by 23.9% at most.

    表 1 SAC和SF的化学组成Table 1 Chemical compositions（by mass） of SAC and SF
    图1 SF的粒径分布Fig.1 Particle size distribution of SF
    图2 SF-SAC的凝结时间和流动度Fig.2 Setting time and fluidity of SF-SAC
    图3 SF-SAC的抗压强度和抗折强度Fig.3 Compressive strength and flexural strength of SF-SAC
    图4 SF-SAC的电阻率Fig.4 Resistivity of SF-SAC
    图5 石蜡-粉末复合材料的介电参数Fig.5 Dielectric parameters of P-powder composite materials
    图6 SF-SAC的介电参数Fig.6 Dielectric parameters of SF-SAC
    图7 SF-SAC的电磁波反射率、透射率和吸收率Fig.7 Electromagnetic wave reflectivity, transmittance and absorption of SF-SAC
    图8 SF-SAC水化产物的XRD图谱Fig.8 XRD patterns of SF-SAC hydration products
    图9 SF-SAC的孔结构Fig.9 Pore structure of SF-SAC
    图10 SF-SAC的SEM照片Fig.10 SEM images of SF-SAC
    表 2 SAC的物理性能Table 2 Physical properties of SAC
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李悦,华成,刘江林.硅灰对硫铝酸盐水泥力学和电磁传输性能的影响[J].建筑材料学报,2024,27(4):283-290

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  • 收稿日期:2023-05-20
  • 最后修改日期:2023-08-09
  • 在线发布日期: 2024-05-11
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