Shear Rheological Properties of Sericite-Greisen Phyllite

Ren, Gaofeng; Duan, Xue Qin; jia, xin

doi:10.4028/www.scientific.net/amr.616-618.162

Cited by 3 publications

(2 citation statements)

References 4 publications

(3 reference statements)

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“…Yang et al discussed the standard of soft rock as a filler and studied the influence of the weathering degree and rock structure on weathered soft rock through rock strength test and particle-breaking test [20]. In related work, the physical and mechanical properties of phyllite and determined the engineering characteristics such as the mineral composition and mechanical strength of phyllite [21][22][23][24]. Xiong and Xu conducted an experimental study on the water content and particle size distribution of weathered phyllite subgrade and concluded that phyllite-filled subgrade can meet the requirements for the stable settlement of the subgrade and the sharp drop in strength after the immersion of phyllite.…”

Section: Introductionmentioning

confidence: 99%

Investigation on cement-improved phyllite based on the vertical vibration compaction method

Jiang

Fan

et al. 2021

PLoS ONE

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The vertical vibration compaction method (VVCM), heavy compaction method and static pressure method were used to form phyllite specimens with different degrees of weathering. The influence of cement content, compactness, and compaction method on the mechanical properties of phyllite was studied. The mechanical properties of phyllite was evaluated in terms of unconfined compressive strength (Rc) and modulus of resilience (Ec). Further, test roads were paved along an expressway in China to demonstrate the feasibility of the highly weathered phyllite improvement technology. Results show that unweathered phyllite can be used as subgrade filler. In spite of increasing compactness, phyllite with a higher degree of weathering cannot meet the requirements for subgrade filler. With increasing cement content, Rc and Ec of the improved phyllite increases linearly. Rc and Ec increase by at least 15% and 17%, respectively, for every 1% increase in cement content and by at least 10% and 6%, respectively, for every 1% increase in compactness. The higher the degree of weathering of phyllite, the greater the degree of improvement of its mechanical properties.

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Section: Introductionmentioning

confidence: 99%

Investigation on cement-improved phyllite based on the vertical vibration compaction method

Jiang

Fan

et al. 2021

PLoS ONE

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“…Zhongjin Wang [4] made a deepen study on roadbed filler classification. Guangming Reng [5]'s research on phyllite rock rheological analysis and calculation provided a theoretical basis. Bingwei Pang [6] considered the mountainous area highway subgrade filling weathered rock engineering characteristics and construction key technology.…”

Section: Introductionmentioning

confidence: 99%

Different Gradations Cement Improved Phyllite Test Analysis

Chen

Zhang

Wang

2014

AMR

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The paper analyzed the phyllite properties in the highway from Shiyan-Tianshui the eastern An-kang 25th section through the related indoor and outdoor testing. As the on-site filler CBR value didnt meet highway subgrade filling on the filler mechanical properties, and it should be improved with cement. The engineering and compaction properties were analyzed under different cement doses and gradation combinations, whose result was shown that selecting the improved phyllite gradation composition of 5% cement content and 60% stone content was the optimal. In that it could not only meet subgrade strength design requirement and the on-site application, but also be the most economical and reasonable.

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Investigating the Deformation Property of Weathered Phyllite Filling Subgrade

Liu

Mao

Zhang³

et al. 2020

Journal of Testing and Evaluation

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To investigate the deformation property of weathered phyllite filling subgrade under the comprehensive effect of water and load, three weathered phyllite soil column models were filled and their deformations were tested through a laboratory test and numerical simulation in this article. The results show that the deformation of the weathered phyllite soil column models were greatly influenced by the water replenishment conditions and load conditions, and the deformation of models increased with the increase of the moisture content and load. Moreover, the larger the load, the longer the time required for the weathered phyllite soil column model to reach stability. In addition, the numerical simulation results were compared with the test results, and it was found that they were similar. Consequently, the numerical simulation can be used to reflect the deformation of weathered phyllite filling subgrade under the effect of water and load and provide some guidance for the design of the weathered phyllite filling subgrade.

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Shear Rheological Properties of Sericite-Greisen Phyllite

Cited by 3 publications

References 4 publications

Investigation on cement-improved phyllite based on the vertical vibration compaction method

Investigation on cement-improved phyllite based on the vertical vibration compaction method

Different Gradations Cement Improved Phyllite Test Analysis

Investigating the Deformation Property of Weathered Phyllite Filling Subgrade

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