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基于X-CT技术的透水混凝土透水性能研究
Research on the pervious performance of pervious concrete based on X-CT technology
2025年第1期
透水混凝土;X-CT技术;透水系数;连通孔隙;性能
Pervious concrete; X-CT technology; Pervious coefficient; Connected pore; Performance
2025年第1期
10.19761/j.1000-4637.2025.01.001.06
国家自然科学基金项目(52171254)。
杨枫林1,赵亚松2,倪凯翔2,杨 锋2,高建明2,*
1.南通市建设混凝土有限公司,江苏 南通 226000;2.东南大学 材料科学与工程学院, 江苏 南京 211100

杨枫林1,赵亚松2,倪凯翔2,杨 锋2,高建明2,*

杨枫林,赵亚松,倪凯翔,等.基于X-CT技术的透水混凝土透水性能研究[J].混凝土与水泥制品,2025(1):1-6.

YANG F L,ZHAO Y S,NI K X,et al.Research on the pervious performance of pervious concrete based on X-CT technology[J].China Concrete and Cement Products,2025(1):1-6.

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摘   要:介绍了一种利用X-CT技术表征透水混凝土试件内部孔结构并获得连通孔隙的方法,研究了水灰比、骨灰比和骨料粒径对试件透水系数、孔结构的影响,分析了有效孔隙率与总孔隙率之间的关系,并建立了透水混凝土透水系数的经验模型。结果表明:增加水灰比会降低试件的透水系数和连通孔隙率;随着骨灰比和骨料粒径的增加,试件的连通孔隙率和透水系数呈上升趋势。 Abstract: A method was introduced to characterize the internal pore structure of pervious concrete specimens and obtain connected pores using X-CT technology. The effects of water-cement ratio, aggregate-cement ratio, and aggregate particle size on the pervious coefficient and pore structure of specimens were studied. The relationship between effective porosity and total porosity was analyzed, and an empirical model for the pervious coefficient of pervious concrete was established. The results indicate that increasing the water-cement ratio will reduce the pervious coefficient and connectivity porosity of the specimens. As the aggregate-cement ratio and aggregate size increase, the connectivity porosity and pervious coefficient of the specimen show an upward trend.
英文名 : Research on the pervious performance of pervious concrete based on X-CT technology
刊期 : 2025年第1期
关键词 : 透水混凝土;X-CT技术;透水系数;连通孔隙;性能
Key words : Pervious concrete; X-CT technology; Pervious coefficient; Connected pore; Performance
刊期 : 2025年第1期
DOI : 10.19761/j.1000-4637.2025.01.001.06
文章编号 :
基金项目 : 国家自然科学基金项目(52171254)。
作者 : 杨枫林1,赵亚松2,倪凯翔2,杨 锋2,高建明2,*
单位 : 1.南通市建设混凝土有限公司,江苏 南通 226000;2.东南大学 材料科学与工程学院, 江苏 南京 211100

杨枫林1,赵亚松2,倪凯翔2,杨 锋2,高建明2,*

杨枫林,赵亚松,倪凯翔,等.基于X-CT技术的透水混凝土透水性能研究[J].混凝土与水泥制品,2025(1):1-6.

YANG F L,ZHAO Y S,NI K X,et al.Research on the pervious performance of pervious concrete based on X-CT technology[J].China Concrete and Cement Products,2025(1):1-6.

摘要
参数
结论
参考文献
引用本文

摘   要:介绍了一种利用X-CT技术表征透水混凝土试件内部孔结构并获得连通孔隙的方法,研究了水灰比、骨灰比和骨料粒径对试件透水系数、孔结构的影响,分析了有效孔隙率与总孔隙率之间的关系,并建立了透水混凝土透水系数的经验模型。结果表明:增加水灰比会降低试件的透水系数和连通孔隙率;随着骨灰比和骨料粒径的增加,试件的连通孔隙率和透水系数呈上升趋势。

Abstract: A method was introduced to characterize the internal pore structure of pervious concrete specimens and obtain connected pores using X-CT technology. The effects of water-cement ratio, aggregate-cement ratio, and aggregate particle size on the pervious coefficient and pore structure of specimens were studied. The relationship between effective porosity and total porosity was analyzed, and an empirical model for the pervious coefficient of pervious concrete was established. The results indicate that increasing the water-cement ratio will reduce the pervious coefficient and connectivity porosity of the specimens. As the aggregate-cement ratio and aggregate size increase, the connectivity porosity and pervious coefficient of the specimen show an upward trend.

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(1)随着水灰比的提高,透水混凝土的连通孔隙率降低,透水系数也降低。当骨料粒径增大时,透水混凝土的连通孔隙率上升,透水系数增加。骨灰比的增加也会提高透水混凝土的透水系数。
(2)有效孔隙率与总孔隙率之间的关系满足
Φ连通=1.66e0.131Φ-0.282。
(3)根据图像处理技术建立了透水混凝土透水系数经验数学模型,得出透水混凝土透水系数公式:η=(3.699-3.676e-0.34Φmin)×(0.099+0.356eΓ/3.35)。

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杨枫林,赵亚松,倪凯翔,.基于X-CT技术的透水混凝土透水性能研究[J].混凝土与水泥制品,2025(1):1-6.

YANG F L,ZHAO Y S,NI K X,et al.Research on the pervious performance of pervious concrete based on X-CT technology[J].China Concrete and Cement Products,2025(1):1-6.

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