Fly Ash Effects on the Stress-Dilatancy Relation of Coarse Soils: Particle Morphology Role

被引:16
作者
Taibi, Amine [1 ,2 ]
Mahmoudi, Youcef [2 ]
Cherif Taiba, Abdellah [2 ,3 ]
Azaiez, Hamou [1 ,2 ]
Belkhatir, Mostefa [2 ]
机构
[1] Univ Chlef, Lab Struct Geotech & Risks, Ouled Fares, Algeria
[2] Univ Chlef, Lab Mat Sci & Environm, Ouled Fares, Algeria
[3] Univ Chlef, Lab Cities Architecture & Environm, Ouled Fares, Algeria
关键词
Particle shape; Fly ash; Sand; Shearing resistance; Particle size; SHEAR-STRENGTH; PACKING DENSITY; SAND; LIQUEFACTION; BEHAVIOR; SHAPE; GRADATION; CEMENT; RATIO;
D O I
10.1007/s10706-023-02412-w
中图分类号
P5 [地质学];
学科分类号
0709 ; 081803 ;
摘要
The influence of the overall regularity and gradation characteristics on the stress-dilatancy relations of a river sand amended with fly ash material is discussed in this paper. To achieve this goal, a series of direct shear tests was carried out on reconstituted samples at an initial relative density (D-r = 87 +/- 3%) and subjected to three normal stresses (sigma(n) = 0.1 MPa, 0.2 MPa and 0.3 MPa). The obtained results confirm that the fly ash binder improved significantly the mechanical performance of the tested materials resulting in a noticeable increment of its shearing resistance. In addition, the analysis of the generated results proves that the particle shape (Angularity "A", Sphericity "S" and overall regularity "OR") and granulometric characteristics (effective and mean particle diameters "D-10 and D-50" and coefficient of uniformity "C-u") correlate very well with stress-dilatancy properties for the tested sand-fly ash assemblies. Moreover, the overall regularity parameter (OR) and the related granulometric characteristics (D-10, D-50 and C-u) appear as pertinent parameters for the prediction of the maximum dilatancy friction angle (psi(max)) of the used materials. This experimental research points out the relevance of particle shape and particle size parameters in the studying and evaluation of the strength-dilatancy relationships of river sand-fly ash mixtures.
引用
收藏
页码:2517 / 2536
页数:20
相关论文
共 50 条
  • [21] Reaction kinetics of fly ash geopolymerization: Role of particle size controlled by using ball mill
    Nath, S. K.
    Kumar, Sanjay
    [J]. ADVANCED POWDER TECHNOLOGY, 2019, 30 (05) : 1079 - 1088
  • [22] Effects of pH on the leaching mechanisms of elements from fly ash mixed soils
    Komonweeraket, Kanokwan
    Cetin, Bora
    Aydilek, Ahmet H.
    Benson, Craig H.
    Edil, Tuncer B.
    [J]. FUEL, 2015, 140 : 788 - 802
  • [23] Role of particle size on the mechanical and microstructural properties of fly ash-based geopolymer
    Das, Dipankar
    [J]. Interactions, 2024, 245 (01)
  • [24] Effects of particle size on the flotation behavior of coal fly ash
    Yang, Lu
    Zhu, Zhenna
    Li, Danlong
    Yan, Xiaokang
    Zhang, Haijun
    [J]. WASTE MANAGEMENT, 2019, 85 : 490 - 497
  • [25] Modification of high-volume fly ash cement with metakaolin for its utilization in cemented paste backfill: The effects of metakaolin content and particle size
    Sun, Xiaogang
    Zhao, Yingliang
    Tian, Yansheng
    Wu, Pinqi
    Guo, Zhenbang
    Qiu, Jingping
    Jun Xing
    Gu Xiaowei
    [J]. POWDER TECHNOLOGY, 2021, 393 : 539 - 549
  • [26] Influence of particle size distributions on yield stress and viscosity of cement-fly ash pastes
    Bentz, Dale P.
    Ferraris, Chiara F.
    Galler, Michael A.
    Hansen, Andrew S.
    Guynn, John M.
    [J]. CEMENT AND CONCRETE RESEARCH, 2012, 42 (02) : 404 - 409
  • [27] Effect of particle size and alkali activation on coal fly ash and their role in sintered ceramic tiles
    Luo, Yang
    Ma, Shuhua
    Liu, Chunli
    Zhao, Zhenqing
    Zheng, Shili
    Wang, Xiaohui
    [J]. JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2017, 37 (04) : 1847 - 1856
  • [28] The role of carbide lime and fly ash blends on the geotechnical properties of clay soils
    Eskisar, Tugba
    [J]. BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT, 2021, 80 (08) : 6343 - 6357
  • [29] The role of carbide lime and fly ash blends on the geotechnical properties of clay soils
    Tugba Eskisar
    [J]. Bulletin of Engineering Geology and the Environment, 2021, 80 : 6343 - 6357
  • [30] EVALUATING THE EFFECTS OF COMBINED FLY ASH AND MARBLE COARSE AGGREGATES ON THE PROPERTIES AND DURABILITY OF CONCRETE
    Filali, Saloua
    Nasser, Abdelkader
    [J]. JOURNAL OF ENGINEERING SCIENCE AND TECHNOLOGY, 2025, 20 (03): : 704 - 722