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Water Permeability of Mortar Investigated by Partial Bounce-Back Lattice Boltzmann Method
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Kai LI1, 2, Li XU1, 2, Lulu YANG1, 2, Caijun SHI1, 2
Journal of the Chinese Ceramic Society | 2022, 50(10) : 2701 - 2711
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Journal of the Chinese Ceramic Society | 2022, 50(10): 2701-2711
• Research Articles •
Water Permeability of Mortar Investigated by Partial Bounce-Back Lattice Boltzmann Method
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Kai LI1, 2, Li XU1, 2, Lulu YANG1, 2, Caijun SHI1, 2
Affiliations
  • 1.Key Laboratory for Green and Advanced Civil Engineering Materials and Application Technology of Hunan Province, College of Civil Engineering, Hunan University, Changsha 410082, China
  • 2.International Science and Technology Innovation Center for Green and Advanced Civil Engineering Materials of Hunan Province, Changsha 410082, China

    • LI Kai (1988-), male, Ph.D., Associate Professor. E-mail:

About Author:

LI Kai (1988-), male, Ph.D., Associate Professor. E-mail:

Published: 2022-10-20 doi: 10.14062/j.issn.0454-5648.20220126
Outline
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To clarify the mechanism of water transport in mortar, a three-phase model consisting of fine aggregate-interfacial transition zone (ITZ) -cement paste was developed to represent mortar, and then the water transport process in mortar was simulated by a partial bounce-back lattice Boltzmann method (PBB-LBM). The influences of aggregate volume fraction, the ITZ's thickness and pore structure on the water permeability of mortar were evaluated. The results show that mortar's water permeability declines at an increased aggregate content and it is always below cement paste's water permeability at a thin thickness of ITZ and a low porosity. Once the thickness of ITZ exceeds 150 μm or its effective porosity is two times greater than that of cement paste, the permeability of mortar is close to or even above the matrix's water permeability. This is attributed to the competitions among the ITZ effect, aggregate dilution effect and tortuous transport path in mortar.

mortar  /  interfacial transition zone  /  lattice Boltzmann method  /  water permeability
李凯, 许立, 杨璐璐, 史才军. 基于部分反弹格子Boltzmann方法研究砂浆水渗透性能. 硅酸盐学报, 2022 , 50 (10) : 2701 -2711 . DOI: 10.14062/j.issn.0454-5648.20220126
Kai LI, Li XU, Lulu YANG, Caijun SHI. Water Permeability of Mortar Investigated by Partial Bounce-Back Lattice Boltzmann Method[J]. Journal of the Chinese Ceramic Society, 2022 , 50 (10) : 2701 -2711 . DOI: 10.14062/j.issn.0454-5648.20220126
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Year 2022 volume 50 Issue 10
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doi: 10.14062/j.issn.0454-5648.20220126
  • Receive Date：2022-02-24
  • Online Date：2026-10-20
  • Published：2022-10-20
Article Data
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History
  • Received：2022-02-24
  • Revised：2022-04-10
Funding
Affiliations
    1.Key Laboratory for Green and Advanced Civil Engineering Materials and Application Technology of Hunan Province, College of Civil Engineering, Hunan University, Changsha 410082, China
    2.International Science and Technology Innovation Center for Green and Advanced Civil Engineering Materials of Hunan Province, Changsha 410082, China

Corresponding:

SHI Caijun (1963-), male, Ph.D., Professor. E-mail:
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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