2024/03/26 更新

写真a

アイリ アブドゥシャラーム
AILI Abudushalamu
AILI Abudushalamu
所属
大学院環境学研究科 都市環境学専攻 建築構造システム 助教
大学院担当
大学院環境学研究科
学部担当
工学部 環境土木・建築学科
職名
助教
外部リンク

学位 3

  1. 工学博士 ( 2017年10月 ) 

  2. 工学修士 ( 2012年6月   国立土木学校(仏) ) 

  3. 工学学士 ( 2009年7月   清華大学(中国) ) 

研究キーワード 9

  1. 材料分析

  2. セメント化学

  3. poromechanics

  4. multi-scale modeling

  5. コンクリート

  6. セメント化学

  7. 多孔体力学

  8. 材料分析

  9. multi-physical couplings

研究分野 1

  1. 社会基盤(土木・建築・防災) / 建築構造、材料  / セメント系材料

経歴 6

  1. 名古屋大学   大学院環境学研究科 都市環境学専攻   助教

    2023年4月 - 現在

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    国名:日本国

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  2. 名古屋大学   大学院環境学研究科 都市環境学専攻   特任講師

    2021年5月 - 2023年3月

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    国名:日本国

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  3. 名古屋大学   大学院環境学研究科 都市環境学専攻   特任助教

    2019年11月 - 2021年4月

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    国名:日本国

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  4. 名古屋大学   大学院環境学研究科 都市環境学専攻   研究員

    2018年4月 - 2019年10月

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    国名:日本国

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  5. 国立土木学校(仏)   Navier Laboratory   ポストドクター

    2017年10月 - 2018年3月

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    国名:フランス共和国

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  6. スイス連邦工科大学ローザンヌ校

    2012年10月 - 2014年1月

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    国名:スイス連邦

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▼全件表示

学歴 1

  1. パリ東大学(仏)

    2014年9月 - 2017年9月

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受賞 2

  1. 優秀論文賞

    2023年9月  

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    受賞区分:学会誌・学術雑誌による顕彰  受賞国:日本国

  2. 第6回Biot会議ポロメカニクス学生コンペティションで1位受賞

    2017年7月   エンジニアリングメカニクス研究所(米)  

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論文 24

  1. Delayed deformation of confinement buildings: 30-Year in situ measured data and prediction with the next-generation Eurocode-2 査読有り 国際共著

    Aili, A; Torrenti, JM; Barre, F; Caba, L

    STRUCTURAL CONCRETE     2024年1月

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    担当区分:筆頭著者   記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Structural Concrete  

    Biaxially prestressed large concrete structures of the confinement building in nuclear power plants (NPPs) should meet the safety requirement for the extension of the service time. Long-term delayed strains of concrete are one of the key factors determining the safety factor in these structures. This article presents 30-year long in situ measurement results of strain evolution of confinement buildings in four different NPPs. The delayed strains are predicted at a material level using the next-generation Eurocode-2, and the influence of temperature as proposed by the fib model code 2010, making use of delayed strain characteristics of the corresponding concrete from a previous study. We found that the default law given in Eurocode underestimates the delayed strain. However, with the possibility of adjusting the shrinkage and creep laws, the prediction results fit with a good accuracy for the in situ measurement.

    DOI: 10.1002/suco.202300665

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  2. Verification Method of Direct Air Capture by Cementitious Material Using Carbon Isotopes 査読有り

    Wang, ZZ; Aili, A; Minami, M; Maruyama, I

    JOURNAL OF ADVANCED CONCRETE TECHNOLOGY   21 巻 ( 11 ) 頁: 934 - 940   2023年11月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Journal of Advanced Concrete Technology  

    Capturing atmospheric CO2 into cement-based materials is a way to set off the CO2 emissions of concrete production. This study proposes an experimental method to track the origin of cement paste that fixes CO2 directly from the air under natural conditions. By exposing powders of well-hydrated cement paste to air, carbonated cement paste powders are obtained with different carbonation degrees. The inorganic carbon of these carbonated samples is extracted by dissolution in phosphoric acid, and the isotopic characteristics related to 13C and 14C are measured. The experimental results show that the 14C value of carbonated cement paste can be used as an indicator for tracing the origin of carbon.

    DOI: 10.3151/jact.21.934

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  3. Impact of Aggregate-Cement Paste Reaction Forming Al-tobermorite on Ion Transport in Aged Concrete 査読有り

    Aili Abudushalamu, Maruyama Ippei, Umeki Yoshito, Yokokura Kazuhiro

    TRANSPORT IN POROUS MEDIA     2023年8月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Transport in Porous Media  

    In concrete structures intended for long-term use, the diffusion properties change over time with possible chemical reactions that may happen in the concrete. In this study, we performed a two-week cesium chloride diffusion test on five cored samples from different walls in a nuclear power plant. The reaction between feldspar group aggregates and cement paste was confirmed previously. We measured the diffusion profiles of cesium and chloride ions with an electron probe microanalyzer. Cesium was adsorbed into some aggregates resulting in local minimum and maximum concentrations in the diffusion profiles. Using Fick’s law, we computed the apparent diffusion coefficient, which reflects the samples’ diffusion and adsorption/bound properties. The diffusion was slow in samples with lower calcium-to-alumina plus silica ratio of amorphous C-A-S-H. However, diffusion was facilitated in the samples containing the crystal form of C-A-S-H, Al-tobermorite. Such ease of diffusion could be attributed to the difference in morphology of C-A-S-H. We found that cesium adsorption is promoted with the decrease in the Ca/Si ratio and with the presence of alkali in the amorphous C-A-S-H.

    DOI: 10.1007/s11242-023-01998-2

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    その他リンク: https://link.springer.com/article/10.1007/s11242-023-01998-2/fulltext.html

  4. フライアッシュを混和したセメント硬化体の乾燥収縮性状 査読有り

    瀬川 実暉・五十嵐 豪・Aili Abudushalamu・丸山 一平

    コンクリート工学年次論文集   45 巻 ( 1 ) 頁: 232 - 237   2023年6月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

  5. X線CR画像と画像相関法を用いたコンクリートの水分移動の影響評価 査読有り

    Kim Suji; Aili Abudushalamu; 五十嵐 豪; 丸山 一平

    コンクリート工学年次論文集   45 巻 ( 1 ) 頁: 460 - 465   2023年6月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

  6. セメント硬化体の炭酸化とそれに伴う微細構造変化に及ぼす CO2 濃度及び初期含水率の影響 査読有り

    伊神 竜生・Aili abudushalamu・五十嵐豪・丸山 一平

    コンクリート工学年次論文集   45 巻 ( 1 ) 頁: 268 - 273   2023年6月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

  7. 低熱ポルトランドセメント硬化体の乾燥収縮性状に関する考察 査読有り

    瀬川 実暉, Aili Abudushalamu, 丸山 一平

    セメント・コンクリート論文集   76 巻 ( 1 ) 頁: 153 - 161   2023年3月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)   出版者・発行元:一般社団法人 セメント協会  

    <p>本研究では低熱ポルトランドセメント硬化体における乾燥収縮性状を検討するため、普通ポルトランドセメントおよび低熱ポルトランドセメントを用いて質量変化および長さ変化を測定した。質量変化─長さ変化関係は二直線近似ができ、屈曲点は概ね50%RHに相当した。この勾配変化から、低湿度域では可逆的なひずみ、高湿度域では可逆的なものに加えて非回復性のひずみが生じたと推測された。Lの不可逆的なひずみはNより大きく、これは単位体積あたりのC-S-H量が多いことや窒素吸着量、水酸化カルシウム量の差からゲル空隙が少なく、C-S-Hが作る構造体に層間空隙が多く、より均質な状態であると推察でき、容易に乾燥後の層間が架橋しやすいためと考えられた。</p>

    DOI: 10.14250/cement.76.153

    CiNii Research

  8. Thermal Expansion of Cement Paste at Various Relative Humidities after Long-term Drying: Experiments and Modeling 査読有り 国際共著

    Aili Abudushalamu, Maruyama Ippei, Vandamme Matthieu

    Journal of Advanced Concrete Technology   21 巻 ( 3 ) 頁: 151 - 165   2023年3月

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    担当区分:筆頭著者, 責任著者   記述言語:英語   出版者・発行元:Japan Concrete Institute  

    <p>The coefficient of thermal expansion (CTE) of cement paste is an essential parameter for estimating cracks of cement-based structures, including under normal operating conditions. The CTE of low-heat Portland cement pastes dried for a long term at various relative humidities were measured by applying trapezoidal temperature history. The measured CTE was a convex function when displayed versus relative humidity and was highest at the relative humidity of 58%. At the relative humidity of 11%, the CTE was similar to the one of the fully dried sample. Based on a drying shrinkage model in the literature that classifies pore water as free liquid water and adsorbed water, we computed pore pressure change and corresponding strain, from which the CTEs were estimated. The microstructural rearrangements of cement paste due to long-term drying were taken into account by obtaining pore size distributions from water vapor sorption isotherm. The CTEs predicted with the model agree well with the measured ones.</p>

    DOI: 10.3151/jact.21.151

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  9. On the long-term delayed strain of concrete structures 招待有り 査読有り 国際共著

    Aili A., Torrenti J. M., Sellin J. P., Barthelemy J. F., Vandamme M.

    CEMENT AND CONCRETE RESEARCH   165 巻   2023年3月

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    担当区分:筆頭著者   掲載種別:研究論文(学術雑誌)   出版者・発行元:Cement and Concrete Research  

    Creep and shrinkage of concrete are essential for the safety assessment of large civil engineering structures. The present paper presents two different approaches to predicting the delayed strain considering a single material point to represent the structure. The first one is a decoupled approach, such as design codes, that splits the delayed strain into four components and predicts each of them as a function of several parameters such as concrete strength. In the second approach, delayed strain is modeled as the viscoelastic response of concrete to applied external loads and/or internal hygric stresses. The advantages and inconveniences of both methods are discussed. In the end, delayed strains of concrete are predicted using these approaches for two examples of real structures: a prestressed concrete bridge and a mock-up of a biaxially prestressed containment building.

    DOI: 10.1016/j.cemconres.2022.107086

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  10. Comparison of shrinkage and mass change of hardened cement paste under gradual drying and rapid drying 査読有り

    Miki Segawa, Abudushalamu Aili, Ippei Maruyama

    CEMENT   10 巻   頁: 100047 - 100047   2022年12月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Elsevier BV  

    DOI: 10.1016/j.cement.2022.100047

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  11. Micro X-ray diffraction and elemental study on Al-tobermorite formation in aged modern concrete 査読有り 国際共著

    Aili Abudushalamu, Maruyama Ippei, Geng Guoqing, Umeki Shota, Sumitani Kazushi, Sawada Shohei, Ueda Shinya, Umeki Yoshito

    JOURNAL OF THE AMERICAN CERAMIC SOCIETY   105 巻 ( 11 ) 頁: 6924 - 6937   2022年11月

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    担当区分:筆頭著者   記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Journal of the American Ceramic Society  

    In modern Portland cement, calcium aluminum silicate hydrates (C-A-S-H) do not generally form crystalline Al-tobermorite. In this study, to identify the mechanism of Al-tobermorite formation, synchrotron micro X-ray diffraction and field-emission scanning electron microscopy-based energy-dispersive X-ray spectroscopy (EDS) investigations were performed on a slice of a thick concrete wall in a nuclear power plant, where the presence of Al-tobermorite was previously confirmed. Rietveld analysis of the diffraction diagrams obtained from the 2D diffraction patterns showed that Al-tobermorite was formed almost everywhere in the cement paste near sandstone aggregate and that Al-tobermorite platelets were distributed across most of the cement paste area in a random orientation. The basal spacing d-value of Al-tobermorite was identical and equal to 11.39 Å. The ratio plots from the EDS maps indicated that the chemical composition of the mixture of Al-tobermorite and C-A-S-H was almost homogeneous all around the cement paste. The Al-tobermorite in this concrete is probably formed via a dissolution–precipitation process. From the random orientation even next to the surface of aggregate, we infer that the Al-tobermorite formation does not need the surface of aggregate to precipitate.

    DOI: 10.1111/jace.18624

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  12. Time-dependent water vapor desorption isotherm model of hardened cement paste

    Rymes Jiri, Maruyama Ippei, Aili Abudushalamu

    CEMENT AND CONCRETE RESEARCH   150 巻   2021年12月

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    記述言語:日本語   出版者・発行元:Cement and Concrete Research  

    This study aims to enhance moisture transport modeling by elucidating the so-called anomalous water diffusion in cementitious materials. Water desorption isotherms are measured from samples at various drying stages using techniques with different durations to quantify the impact of the drying duration on the water sorption ability. A single water sorption isotherm does not solely give a relationship between the water content and relative humidity but also represents the state of microstructure. The continuous evolution of a desorption isotherm due to drying-induced microstructural rearrangement is demonstrated. For numerical modeling, the microstructural alteration can be explicitly considered through a dynamic desorption isotherm model, which governs the local thermodynamic equilibrium at the capillary meniscus. This approach is implemented into a multiphase transport code, whose ability to predict drying is validated using literature data. Finally, the effect of prolonged drying on the colloidal nature of the calcium-silicate-hydrate gel is discussed.

    DOI: 10.1016/j.cemconres.2021.106612

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  13. The Relative Humidity Range for the Development of Irreversible Shrinkage in Hardened Cement Paste

    Maruyama Ippei, Kishi Naoya, Aili Abudushalamu

    JOURNAL OF ADVANCED CONCRETE TECHNOLOGY   19 巻 ( 6 ) 頁: 585 - 592   2021年6月

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    記述言語:日本語   出版者・発行元:Journal of Advanced Concrete Technology  

    For better understanding of irreversible shrinkage, nine hardened cement paste (hcp) samples with three different cement types and three different water to cement ratio were prepared. Four different relative humidity conditioning histories containing the first desorption, re-humidification and the second desorption are investigated for all the specimens to obtain the length change and water sorption isotherms. The irreversible shrinkage strain was developed when the specimen was dried up to less than 80% relative humidity (RH), while other previous experiments in literatures showed that the shrinkage strain between 40% RH and 11% RH is reversible. It is concluded that the irreversible shrinkage strain is developed between 80% RH and 40% RH, which is also supported by the change in water vapor BET surface area of hardened cement paste after long-term drying.

    DOI: 10.3151/jact.19.585

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  14. Long-term use of modern Portland cement concrete: The impact of Al-tobermorite formation

    Maruyama Ippei, Rymes Jiri, Aili Abudushalamu, Sawada Shohei, Kontani Osamu, Ueda Shinya, Shimamoto Ryu

    MATERIALS & DESIGN   198 巻   2021年1月

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    記述言語:日本語   出版者・発行元:Materials and Design  

    The distribution of compressive strength in thick concrete members exposed to various environments in a nuclear power plant undergoing decommissioning is investigated. X-ray diffraction data, scanning electron microscopy analysis, and chemical analysis data reveal that rock-forming minerals in the aggregate had reacted and portlandite had been consumed to form calcium alumino silicate hydrates (C-A-S-H) when evaporable water content was sufficient. In addition, the study confirms Al-tobermorite formation in modern concrete after 16.5 years of elevated temperature conditions ranging from 40 to 55 °C. It is concluded that an appropriate aggregate and binder combination for the concrete enhances the compressive strength of thick concrete members thanks to the reaction of rock-forming minerals with portlandite, and also strengthens the chemical stability through the formation of Al-tobermorite under elevated temperature conditions and sufficient evaporable water content.

    DOI: 10.1016/j.matdes.2020.109297

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  15. Review of Several Experimental Methods for Characterization of Micro- and Nano-Scale Pores in Cement-Based Material

    Aili Abudushalamu, Maruyama Ippei

    INTERNATIONAL JOURNAL OF CONCRETE STRUCTURES AND MATERIALS   14 巻 ( 1 )   2020年11月

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    記述言語:日本語   出版者・発行元:International Journal of Concrete Structures and Materials  

    Mechanical properties and durability of cement-based materials are largely affected by pore structures. This paper provides an overview of several experimental techniques to characterize pore size distribution and specific surface area, with focus on pores in calcium silicate hydrates. The reviewed experimental techniques are nitrogen and water vapor sorption isotherm, proton nuclear magnetic resonance (1H-NMR) and small-angle scattering (SAS). Different pretreatment methods are compared for sorption measurements. Pore size distribution and specific surface area are analyzed using data from different methods to understand difference and consistency of these methods. It is found that pore size distribution calculated from sorption isotherm is very sensitive to adsorption model. Though specific surface areas from different techniques are quite different from each other, they are all able to detect the microstructural alteration due to long-term drying.

    DOI: 10.1186/s40069-020-00431-y

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  16. Modeling Long-term Delayed Strains of Prestressed Concrete with Real Temperature and Relative Humidity History

    Aili Abudushalamu, Torrenti Jean-Michel

    JOURNAL OF ADVANCED CONCRETE TECHNOLOGY   18 巻 ( 7 ) 頁: 396-408   2020年7月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.3151/jact.18.396

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  17. Creep behavior of C-S-H under different drying relative humidities: Interpretation of microindentation tests and sorption measurements by multi-scale analysis

    Suwanmaneechot Piyapong, Aili Abudushalamu, Maruyama Ippei

    CEMENT AND CONCRETE RESEARCH   132 巻   2020年6月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1016/j.cemconres.2020.106036

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  18. A viscoelastic poromechanical model for shrinkage and creep of concrete

    Abudushalamu Aili, Matthieu V, amme, Jean-Michel Torrenti, Benoit Masson

    Cement and Concrete Research   129 巻   頁: 105970 - 105970   2020年3月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Elsevier {BV}  

    DOI: 10.1016/j.cemconres.2019.105970

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  19. Prediction of the delayed deformations of a nuclear power plant using MC2010 and new EC2 relations for concrete creep and shrinkage

    Torrenti J.M., Aili A.

    Proceedings of the fib Symposium 2020: Concrete Structures for Resilient Society     頁: 773 - 780   2020年

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    記述言語:日本語   出版者・発行元:Proceedings of the fib Symposium 2020: Concrete Structures for Resilient Society  

    The prediction of the delayed deformations of prestressed concrete structures like nuclear power plants (NPPs) is important in order to assess and/or extend the service life of such structures. It is also a safety concern because, in these structures, the prestressing is there to avoid tensile stresses and cracking in case of a severe accident (where an internal pressure is generated). In this paper, the relations proposed in MC2010 and in the future Eurocode 2 for the delayed strains (creep and shrinkage of concrete and relaxation of steel) are used to predict the behaviour of a NPP built 25 years ago. As proposed in the future Eurocode 2, the parameters of the relations giving the evolution of shrinkage and creep are fitted to measurements made on laboratory samples when the NPP was built. The influence of the temperature and of the relative humidity inside the containment are also taken into account. Finally, using the superposition principle in a biaxial context, the predicted delayed strains are compared with the measurements.

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  20. Prediction of the delayed deformations of a nuclear power plant using MC2010 and new EC2 relations for concrete creep and shrinkage

    Torrenti J.M., Aili A.

    fib Symposium     頁: 773 - 780   2020年

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    出版者・発行元:fib Symposium  

    The prediction of the delayed deformations of prestressed concrete structures like nuclear power plants (NPPs) is important in order to assess and/or extend the service life of such structures. It is also a safety concern because, in these structures, the prestressing is there to avoid tensile stresses and cracking in case of a severe accident (where an internal pressure is generated). In this paper, the relations proposed in MC2010 and in the future Eurocode 2 for the delayed strains (creep and shrinkage of concrete and relaxation of steel) are used to predict the behaviour of a NPP built 25 years ago. As proposed in the future Eurocode 2, the parameters of the relations giving the evolution of shrinkage and creep are fitted to measurements made on laboratory samples when the NPP was built. The influence of the temperature and of the relative humidity inside the containment are also taken into account. Finally, using the superposition principle in a biaxial context, the predicted delayed strains are compared with the measurements.

    Scopus

  21. Prediction of the delayed deformations of a nuclear power plant using MC2010 and new EC2 relations for concrete creep and shrinkage 査読有り 国際共著 国際誌

    Torrenti J.M, Aili A

    Proceedings of the fib Symposium 2020: Concrete Structures for Resilient Society     頁: 773 - 780   2020年

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    記述言語:英語   掲載種別:研究論文(国際会議プロシーディングス)   出版者・発行元:Proceedings of the fib Symposium 2020: Concrete Structures for Resilient Society  

    The prediction of the delayed deformations of prestressed concrete structures like nuclear power plants (NPPs) is important in order to assess and/or extend the service life of such structures. It is also a safety concern because, in these structures, the prestressing is there to avoid tensile stresses and cracking in case of a severe accident (where an internal pressure is generated). In this paper, the relations proposed in MC2010 and in the future Eurocode 2 for the delayed strains (creep and shrinkage of concrete and relaxation of steel) are used to predict the behaviour of a NPP built 25 years ago. As proposed in the future Eurocode 2, the parameters of the relations giving the evolution of shrinkage and creep are fitted to measurements made on laboratory samples when the NPP was built. The influence of the temperature and of the relative humidity inside the containment are also taken into account. Finally, using the superposition principle in a biaxial context, the predicted delayed strains are compared with the measurements.

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  22. Is long-term autogenous shrinkage a creep phenomenon induced by capillary effects due to self-desiccation?

    Abudushalamu Aili, Matthieu V, amme, Jean-Michel Torrenti, Benoit Masson

    Cement and Concrete Research   108 巻   頁: 186 - 200   2018年6月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Elsevier {BV}  

    DOI: 10.1016/j.cemconres.2018.02.023

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  23. Time evolutions of non-aging viscoelastic Poisson's ratio of concrete and implications for creep of C-S-H

    Abudushalamu Aili, Matthieu V, amme, Jean-Michel Torrenti, Benoit Masson, Julien Sanahuja

    Cement and Concrete Research   90 巻   頁: 144 - 161   2016年12月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Elsevier {BV}  

    DOI: 10.1016/j.cemconres.2016.09.014

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  24. Theoretical and practical differences between creep and relaxation Poisson’s ratios in linear viscoelasticity

    Abudushalamu Aili, Matthieu V, amme, Jean-Michel Torrenti, Benoit Masson

    Mechanics of Time-Dependent Materials   19 巻 ( 4 ) 頁: 537 - 555   2015年11月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Springer Science and Business Media {LLC}  

    DOI: 10.1007/s11043-015-9277-5

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書籍等出版物 1

  1. Long Term Prediction of the Delayed Behavior of Concrete Structures – The Case of the VERCORS Mock-Up 査読有り 国際共著

    Aili A, Torrenti J.M

    RILEM Bookseries  2023年 

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    記述言語:英語 著書種別:学術書

    The prediction of the long-term behavior of prestressed concrete structures is important in order to assess and/or extend the service life of such structures. Here, a modelling of the delayed strains (creep and shrinkage of concrete and relaxation of steel), based on the relations of the next Eurocode 2 (EC2), is used to predict the behavior of the internal vessel of the VERCORS mock-up of a French NPP. This modelling considers the influence of the temperature and of the relative humidity (varying under service conditions). The predicted delayed strains are compared with the measurements and different hypotheses are tested to improve the prediction of the delayed strains.

    DOI: 10.1007/978-3-031-07746-3_2

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担当経験のある科目 (本学) 1

  1. 構造・材料実験法

    2023