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Adsorption of fluoride on clay minerals and their mechanisms using X-ray photoelectron spectroscopy

Junyi DU, Daishe WU, Huayun XIAO, Ping LI

Frontiers of Environmental Science & Engineering 2011, Volume 5, Issue 2,   Pages 212-226 doi: 10.1007/s11783-010-0255-5

Abstract: This research investigates the adsorption mechanisms of fluoride (F) on four clay minerals (kaoliniteconcentrations ( = 5–1000 mg·L ), the amount of F adsorbed ( ), amount of hydroxide released by clayAt <5–100 mg·L , clay minerals adsorb H to protonate aluminum-bound surface-active hydroxyl sites inAt low (0.3–1.5 mg·L ), proton transfer occurs, and the F adsorption capabilities of the clay minerals

Keywords： clay mineral     fluoride (F)     adsorption mechanism     X-ray photoelectron spectroscopy (XPS)    

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Strategic Research on Nonmetallic Mineral Resources for Building Materials in China

Gu Zhen´an , Tong Jifeng , Cui Yuansheng , Peng Shou , Su Guijun , Zhou Hongjin , Feng Huimin , Zhao Fei , Tian Guiping , Meng Qingjie , Hong Wei

Strategic Study of CAE 2019, Volume 21, Issue 1,   Pages 104-112 doi: 10.15302/J-SSCAE-2019.01.015

Abstract:

This paper focuses on the strategic research on five nonmetallic mineralresources for building materials, namely limestone for cement, silica raw materials for glass, claymineral raw materials for sanitary ceramics (kaolin clay), high-purity quartz, and graphite.To develop nonmetallic mineral resources for building materials, this paper first offers the roadmapTo support the construction of a great power of nonmetallic mineral resources for building materials,

Keywords： building materials     power nation strategy     limestone for cement     silica raw materials for glass     claymineral raw materials for building sanitary ceramics (kaolin clay)     high-purity quartz     graphite    

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Bearing and uplift capacities of under-reamed piles in soft clay underlaid by stiff clay using lower-bound

Mantu MAJUMDER, Debarghya CHAKRABORTY

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 2,   Pages 537-551 doi: 10.1007/s11709-021-0708-x

Abstract: Ensuring a safe foundation design in soft clay is always a challenging task to engineers.In the present study, the effectiveness of under-reamed piles in soft clay underlaid by stiff clay iswith the increase in the length-to-shaft-diameter ratio ( / ) and adhesion factors in soft clay ( )and stiff clay ( ).and soft clay underlaid by stiff clay.

Keywords： bearing capacity     uplift capacity     under-reamed pile     clay     limit analysis    

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Model testing of tripod caisson foundations in silty clay subjected to eccentric lateral loads

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 3,   Pages 467-476 doi: 10.1007/s11709-023-0933-6

Abstract: the bearing capacities of tripod caisson foundations subjected to eccentric lateral loads in silty clay

Keywords： tripod caisson foundation     silty clay     eccentric lateral capacity     model tests    

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Behavior of compacted clay-concrete interface

R. R .SHAKIR, Jungao ZHU

Frontiers of Structural and Civil Engineering 2009, Volume 3, Issue 1,   Pages 85-92 doi: 10.1007/s11709-009-0013-6

Abstract: Tests of interface between compacted clay and concrete were conducted systematically using interfacewater content, normal stress and rough surface on the shear stress-shear displacement relationship of clay-concretedisplacement behavior for both cases of relatively rough and smooth concrete surface except when the claygreater than 16% for the case of rough concrete surface where the shear failure occurs in the body of the claythe interface shear strength increases with increasing water content ratio especially for the case of clay-rough

Keywords： soil structure interaction     simple shear test     interface     friction     compacted clay     interface modeling    

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Analysis of cement-treated clay behavior by micromechanical approach

Dong-Mei ZHANG, Zhen-Yu YIN, Pierre-Yves HICHER, Hong-Wei HUANG

Frontiers of Structural and Civil Engineering 2013, Volume 7, Issue 2,   Pages 137-153 doi: 10.1007/s11709-013-0204-z

Abstract: Cementation is produced by mixing a certain amount of cement with the saturated clay.purpose of this paper is to model the cementation effect on the mechanical behavior of cement-treated claycompression and undrained triaxial tests under various confining stresses on cement-treated Ariake clayand Singapore clay with various cement contents.micromechanical approach is well adapted for taking into account the main physical properties of cement-treated clay

Keywords： microstructure     cementation     clay     micromechanics     anisotropy     debonding    

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Experimental investigation of the influence on static and cyclic deformation of structural soft clay

CHEN Yunmin, CHEN Yingping, HUANG Bo

Frontiers of Structural and Civil Engineering 2007, Volume 1, Issue 4,   Pages 422-429 doi: 10.1007/s11709-007-0057-4

Abstract: This paper presents the experimental results performed to study the static and cyclic deformation behavior of undisturbed and remolded soft clays sampling from Xiaoshan. The consolidation tests indicated that the vertical strains of

Keywords： consolidation     deformation     experimental     undisturbed    

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Synthesis, characterization and assessment thermal properties of clay based nanopigments

Mohammad Banimahd KIEVANI, Milad EDRAKI

Frontiers of Chemical Science and Engineering 2015, Volume 9, Issue 1,   Pages 40-45 doi: 10.1007/s11705-015-1505-7

Abstract: Nano-clay based pigments (NCP) are new type of pigments composed of organic dyes and layered silicate-clay

Keywords： nanopigment     layered silicate     cationic dye     thermal properties    

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Ultimate bearing capacity of strip footing resting on clay soil mixed with tire-derived aggregates

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 4,   Pages 1016-1024 doi: 10.1007/s11709-021-0751-7

Abstract: This study investigated the use of recycled tire-derived aggregate (TDA) mixed with kaolin as a method of increasing the ultimate bearing capacity ( UBC) of a strip footing. Thirteen 1g physical modeling tests were prepared in a rigid box of 0.6 m × 0.9 m in plan and 0.6 m in height. During sample preparation, 0%, 20%, 40%, or 60% (by weight) of powdery, shredded, small-sized granular (G 1–4 mm) or large-sized granular (G 5–8 mm) TDA was mixed with the kaolin. A strip footing was then placed on the stabilized kaolin and was caused to fail under stress-controlled conditions to determine the UBC. A rigorous 3D finite element analysis was developed in Optum G-3 to determine the UBC values based on the experimental test results. The experimental results showed that, except for the 20% powdery TDA, the TDA showed an increase in the UBC of the strip footing. When kaolin mixed with 20% G (5–8 mm), the UBC showed a threefold increase over that for the unreinforced case. The test with 20% G (1–4 mm) recorded the highest subgrade modulus. It was observed that the UBC calculated using finite element modeling overestimated the experimental UBC by an average of 9%.

Keywords： kaolin     physical modeling tests     stabilization     numerical modeling    

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Optimized porous clay heterostructure for removal of acetaldehyde and toluene from indoor air

Pu ZHAO,Lizhong ZHU

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 2,   Pages 219-228 doi: 10.1007/s11783-014-0760-z

Abstract: In this study, a series of new porous clay heterostructure (PCH) adsorbents with various ratios of micropores

Keywords： porous clay heterostructure     volatile organic compounds     adsorption     adsorbent     indoor air    

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Effects of exercise therapy on bone mineral density in early postmenopausal women: a controlled trial

Shilin DENG MD ,

Frontiers of Medicine 2009, Volume 3, Issue 3,   Pages 323-329 doi: 10.1007/s11684-009-0061-2

Abstract: the effect of a well-designed combined aerobic, resistance, and extension exercise program on bone mineral

Keywords： early postmenopausal women     bone mineral density     exercise     effects    

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Construction and Application of Mineral Flotation Adsorption Equilibrium Model: Accurately Analyze Ions/ Reagents Adsorption Behavior on Mineral Surface

Gao Ya, Fu Xinzhuang, Han Haisheng, Wang Li, Yue Tong, Sun Wei

Strategic Study of CAE 2023, Volume 25, Issue 6,   Pages 248-258 doi: 10.15302/J-SSCAE-2023.07.020

Abstract:

The mineral flotation adsorption equilibrium model is a mathematicalmodel to accurately describe ions/reagents adsorption equilibrium involved in mineral flotation.It is the first time to realize quantitative affinity analysis between mineral surface sites and Based on these constants, mineral surface electricity and ions/reagents adsorption behavior canIt is also of great significance in the study of mineral surface reagent adsorption mechanisms,

Keywords： mineral processing     flotation mechanism     mineral flotation adsorption equilibrium model     mineral floatabilityprediction     characteristic constant in mineral flotation    

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Relationship between the development of energy and mineral resources and ecological conservation redline

Dawei ZHANG

Frontiers of Engineering Management 2019, Volume 6, Issue 4,   Pages 557-563 doi: 10.1007/s42524-019-0077-5

Abstract: point of view, this study discusses the dialectical relationship between the development of energy and mineralWe propose that the ecological conservation redline and the development of energy and mineral resourcesshould be guided by ecological civilization construction, that is, the energy and mineral resourcesThis study analyzes the influence of the development of energy and mineral resources on the ecologicalconservation redline based on the law and the reduction of the influence of the development of energy mineral

Keywords： ecological conservation redline     development of energy and mineral resources     coordinated development    

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A state-of-the-art review on interfacial behavior between asphalt binder and mineral aggregate

Meng GUO, Yiqiu TAN, Linbing WANG, Yue HOU

Frontiers of Structural and Civil Engineering 2018, Volume 12, Issue 2,   Pages 248-259 doi: 10.1007/s11709-017-0422-x

Abstract: The interface between asphalt binder and mineral aggregate directly affects the service life of pavementThe interaction between asphalt binder and mineral aggregate is the main cause of forming the interfaceconducted on this topic clearly indicated that the interfacial interaction between asphalt binder and mineral

Keywords： Asphalt binder     Mineral aggregate     Interfacial behavior     Multiscale    

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Retraction note to: Synthesis, characterization and assessment thermal properties of clay based nanopigments

Mohammad Banimahd Kievani,Milad Edraki

Frontiers of Chemical Science and Engineering 2016, Volume 10, Issue 3,   Pages 440-440 doi: 10.1007/s11705-016-1573-3

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Title Author Date Type Operation

Adsorption of fluoride on clay minerals and their mechanisms using X-ray photoelectron spectroscopy

Junyi DU, Daishe WU, Huayun XIAO, Ping LI

Journal Article

Strategic Research on Nonmetallic Mineral Resources for Building Materials in China

Gu Zhen´an , Tong Jifeng , Cui Yuansheng , Peng Shou , Su Guijun , Zhou Hongjin , Feng Huimin , Zhao Fei , Tian Guiping , Meng Qingjie , Hong Wei

Journal Article

Bearing and uplift capacities of under-reamed piles in soft clay underlaid by stiff clay using lower-bound

Mantu MAJUMDER, Debarghya CHAKRABORTY

Journal Article

Model testing of tripod caisson foundations in silty clay subjected to eccentric lateral loads

Journal Article

Behavior of compacted clay-concrete interface

R. R .SHAKIR, Jungao ZHU

Journal Article

Analysis of cement-treated clay behavior by micromechanical approach

Dong-Mei ZHANG, Zhen-Yu YIN, Pierre-Yves HICHER, Hong-Wei HUANG

Journal Article

Experimental investigation of the influence on static and cyclic deformation of structural soft clay

CHEN Yunmin, CHEN Yingping, HUANG Bo

Journal Article

Synthesis, characterization and assessment thermal properties of clay based nanopigments

Mohammad Banimahd KIEVANI, Milad EDRAKI

Journal Article

Ultimate bearing capacity of strip footing resting on clay soil mixed with tire-derived aggregates

Journal Article

Optimized porous clay heterostructure for removal of acetaldehyde and toluene from indoor air

Pu ZHAO,Lizhong ZHU

Journal Article

Effects of exercise therapy on bone mineral density in early postmenopausal women: a controlled trial

Shilin DENG MD ,

Journal Article

Construction and Application of Mineral Flotation Adsorption Equilibrium Model: Accurately Analyze Ions/ Reagents Adsorption Behavior on Mineral Surface

Gao Ya, Fu Xinzhuang, Han Haisheng, Wang Li, Yue Tong, Sun Wei

Journal Article

Relationship between the development of energy and mineral resources and ecological conservation redline

Dawei ZHANG

Journal Article

A state-of-the-art review on interfacial behavior between asphalt binder and mineral aggregate

Meng GUO, Yiqiu TAN, Linbing WANG, Yue HOU

Journal Article

Retraction note to: Synthesis, characterization and assessment thermal properties of clay based nanopigments

Mohammad Banimahd Kievani,Milad Edraki

Journal Article