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Tensile strength behavior of cement-stabilized dredged sediment reinforced by polypropylene fiber

Frontiers of Structural and Civil Engineering 2024, Volume 18, Issue 3,   Pages 380-392 doi: 10.1007/s11709-024-1072-4

Abstract: This study evaluated the feasibility of using polypropylene fiber (PF) as reinforcement in improving tensile strength behavior of cement-stabilized dredged sediment (CDS). The effects of cement content, water content, PF content and length on the tensile strength and stress–strain behavioral evolutions were evaluated by conducting splitting tensile strength tests. Furthermore, the micro-mechanisms characterizing the tensile strength behavior inside PF-reinforced CDS (CPFDS) were clarified via analyzing macro failure and microstructure images. The results indicate that the highest tensile strengths of 7, 28, 60, and 90 d CPFDS were reached at PF contents of 0.6%, 1.0%, 1.0%, and 1.0%, exhibiting values 5.96%, 65.16%, 34.10%, and 35.83% higher than those of CDS, respectively. Short, 3 mm, PF of showed the best reinforcement efficiency. The CPFDS exhibited obvious tensile strain-hardening characteristic, and also had better ductility than CDS. The mix factor (CCa/Cwb) and time parameter (qt0(t)) of CDS, and the reinforcement index (kt-PF) of CPFDS were used to establish the tensile strength prediction models of CDS and CPFDS, considering multiple factors. The PF “bridge effect” and associated cementation-reinforcement coupling actions inside CPFDS were mainly responsible for tensile strength behavior improvement. The key findings contribute to the use of CPFDS as recycled engineering soils.

Keywords： dredged sediment     chemical stabilization     fiber reinforcement     splitting tensile strength     micro-mechanisms    

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Cu/Cr co-stabilization mechanisms in a simulated AlO-FeO-CrO-CuO waste system

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 6, doi: 10.1007/s11783-021-1408-4

Abstract:

• Cu and Cr can be mostly incorporated into CuFexAlyCr2−x−yO4 with a spinel structure.

Keywords： Spinel structure     Copper     Chromium     Co-stabilization     Thermal treatment    

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Microwave enhanced stabilization of copper in artificially contaminated soil

Hua ZHANG, Zhiliang ZHU, Noboru YOSHIKAWA

Frontiers of Environmental Science & Engineering 2011, Volume 5, Issue 2,   Pages 205-211 doi: 10.1007/s11783-010-0290-2

Abstract: Its effects on the stabilization efficiency were studied as a function of additive, microwave power,The stabilization efficiency of the microwave process was evaluated based on the results of the toxicitya 700 W microwave power, 20 min process time and 3 iron wires as the additive, and that the highest stabilizationIn addition, the different reaction atmospheres showed no apparent effect on the stabilization efficiency

Keywords： microwave     copper     stabilization    

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Cement-based solidification/stabilization of contaminated soils by nitrobenzene

Jianguo LIU, Xiaoqin NIE, Xianwei ZENG, Zhaoji SU

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 3,   Pages 437-443 doi: 10.1007/s11783-012-0406-y

Abstract: The cement-based solidification/stabilization (S/S) of nitrobenzene (NB) contaminated soils, with cement

Keywords： solidification/stabilization     nitrobenzene     contaminated soils     powder activated carbon    

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Analysis and stabilization control of a voltage source controlled wind farm under weak grid conditions

Frontiers in Energy 2022, Volume 16, Issue 6,   Pages 943-955 doi: 10.1007/s11708-021-0793-5

Abstract: Based on this knowledge, a stabilization control strategy is then proposed, aiming for stability improvements

Keywords： weak grids     voltage source (VS) control     wind turbine (WT)     stabilization control     wind farm     inertial    

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The use of fine portions from construction and demolition waste for expansive soil stabilization: A review

Mgboawaji Claude UJILE; Samuel Jonah ABBEY

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 7,   Pages 803-816 doi: 10.1007/s11709-022-0835-z

Abstract: This study shows the effect of CDW in expansive soil stabilization.The chemical and mechanical properties of these materials have shown that they are capable of developingMixtures of crushed brick and recycled aggregates characterised based on chemical properties of different

Keywords： mixed fine portions     construction and demolition waste     expansive soil     soil stabilization    

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Indicating landfill stabilization state by using leachate property from Laogang Refuse Landfill

LOU Ziyang,CHAI Xiaoli,ZHAO Youcai,SONG Yu,ZHU Nanwen,JIA Jinping

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 3,   Pages 405-410 doi: 10.1007/s11783-013-0565-5

Abstract: Variation and evolution process of leachate can be applied as a reference for landfill stabilizationsynthetic parameter-F based on these 14 parameters, and a logarithm equation was simulated for the landfill stabilization

Keywords： landfill stabilization     leachate evolution     principal component analysis    

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Phosphate-induced differences in stabilization efficiency for soils contaminated with lead, zinc, and

Jie Ren, Zhuo Zhang, Mei Wang, Guanlin Guo, Ping Du, Fasheng Li

Frontiers of Environmental Science & Engineering 2018, Volume 12, Issue 2, doi: 10.1007/s11783-018-1006-2

Abstract: Results indicated that the stabilization efficiency of KH PO , K HPO , and K PO for Pb, Zn, and Cd inCompetitive stabilization occurred in the ternary system, Pb exhibited a strong competition, the stabilizationThis approach provides insight into phosphate-induced differences in stabilization efficiency in soils

Keywords： Heavy metals     Metal-contaminated soil     Phosphate     Competitive stabilization    

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An integrated method for the rapid dewatering and solidification/stabilization of dredged contaminated

Hefu Pu, Aamir Khan Mastoi, Xunlong Chen, Dingbao Song, Jinwei Qiu, Peng Yang

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 4, doi: 10.1007/s11783-020-1359-1

Abstract: Using this method, dewatering and solidification/stabilization can be carried out simultaneously suchformation of hydrotalcite in GGBS-MgO binder, which resulted in higher mechanical strength and higher Zn stabilization

Keywords： Dredged contaminated sediment     Dewatering     Solidification/stabilization     Vacuum preloading     Prefabricated    

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Effects of sepiolite on stabilization remediation of heavy metal-contaminated soil and its ecological

Yuebing SUN,Dan ZHAO,Yingming XU,Lin WANG,Xuefeng LIANG,Yue SHEN

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 1,   Pages 85-92 doi: 10.1007/s11783-014-0689-2

Abstract: Stabilization in the remediation of heavy metal contaminated soils has been gaining prominence becauseIn this study, microbial properties such as microbial community and enzyme activities, chemical propertiessoil pH and metal fraction, and heavy metal accumulation in spinach ( ) were considered in assessing stabilization

Keywords： stabilization remediation     heavy metals     sepiolite     soil quality     spinach (Spinacia oleracea)    

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Stabilization treatment of contaminated soil: a field-scale application in Shanghai, China

Changbo ZHANG, Qishi LUO, Chunnu GENG, Zhongyuan LI

Frontiers of Environmental Science & Engineering 2010, Volume 4, Issue 4,   Pages 395-404 doi: 10.1007/s11783-010-0271-5

Abstract: Stabilization is one of the best demonstrated available technologies for treating toxic pollutants inHere, a field-scale application of stabilization treatment in Shanghai, China was summarized to demonstratethe whole engineering process and the key technical issues regarding stabilization of contaminated soilIn addition, some technical obstacles related to soil stabilization treatment were discussed, includingsoil quality evaluation, stabilization effectiveness validation, and soil reuse assessment.

Keywords： stabilization     contaminated soil     field-scale demonstration     technical obstacles    

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Stabilization-based soil remediation should consider long-term challenges

Zhengtao Shen, Zhen Li, Daniel S. Alessi

Frontiers of Environmental Science & Engineering 2018, Volume 12, Issue 2, doi: 10.1007/s11783-018-1028-9

Abstract: Among available remediation options, stabilization, which aims to immobilize contaminants within soilfield trials coupled with long-term monitoring are critical to further verify conditions under which stabilizationIt is hence important to consider these challenges to develop an optimized application of stabilization

Keywords： Stabilization     Soil remediation     Long-term     Trace metals    

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Leaching characteristics of heavy metals during cement stabilization of fly ash from municipal solid

LIANG Shunwen, JIANG Jianguo, ZHANG Yan, XU Xin

Frontiers of Environmental Science & Engineering 2008, Volume 2, Issue 3,   Pages 358-363 doi: 10.1007/s11783-008-0060-6

Abstract: The leaching characteristics of heavy metals in products of cement stabilization of fly ash from a municipalThe stabilization of heavy metals such as Cd, Pb, Cu, and Zn in fly ash from such incinerators was examinedWhen the hydration of cement was basically finished, stabilization of heavy metals did not vary after

Keywords： heavy     national standard     environmental     leachate     liquor    

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Stabilization of hexavalent chromium with pretreatment and high temperature sintering in highly contaminated

Haiyan Mou, Wenchao Liu, Lili Zhao, Wenqing Chen, Tianqi Ao

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 4, doi: 10.1007/s11783-020-1353-7

Abstract: Abstract • Separate reduction and sintering cannot be effective for Cr stabilization. • Combined treatmentof reduction and sintering is effective for Cr stabilization. • Almost all the Cr in the reduced soilThis combined treatment greatly improved the stabilization efficiency of chromium because the reduction

Keywords： Chromium     Heavy contaminated soil     Reduction     Sintering     Stabilization     Speciation    

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The stabilization effect of Al2O3 on unconventional Pb/SiO2 catalyst

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 10,   Pages 1423-1429 doi: 10.1007/s11705-023-2315-y

Abstract: Similar to Sn, Pb located at the same group (IVA) in the periodic table of elements, can also catalyze propane dehydrogenation to propene, while a fast deactivation can be observed. To enhance the stability, the traditional carrier Al2O3 with a small amount, was introduced into Pb/SiO2 catalyst in this study. It has been proved that Al2O3 can inhibit the reduction of PbO, and weaken the agglomeration and loss of Pb species due to its enhanced interaction with Pb species. As a result, 3Al15Pb/SiO2 catalyst exhibits a much higher stability up to more than 150 h. In addition, a simple schematic diagram of the change of surface species on the catalyst surface after Al2O3 addition was also proposed.

Keywords： Pb/SiO2     Al2O3     propane dehydrogenation     propene     stability    

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Title Author Date Type Operation

Tensile strength behavior of cement-stabilized dredged sediment reinforced by polypropylene fiber

Journal Article

Cu/Cr co-stabilization mechanisms in a simulated AlO-FeO-CrO-CuO waste system

Journal Article

Microwave enhanced stabilization of copper in artificially contaminated soil

Hua ZHANG, Zhiliang ZHU, Noboru YOSHIKAWA

Journal Article

Cement-based solidification/stabilization of contaminated soils by nitrobenzene

Jianguo LIU, Xiaoqin NIE, Xianwei ZENG, Zhaoji SU

Journal Article

Analysis and stabilization control of a voltage source controlled wind farm under weak grid conditions

Journal Article

The use of fine portions from construction and demolition waste for expansive soil stabilization: A review

Mgboawaji Claude UJILE; Samuel Jonah ABBEY

Journal Article

Indicating landfill stabilization state by using leachate property from Laogang Refuse Landfill

LOU Ziyang,CHAI Xiaoli,ZHAO Youcai,SONG Yu,ZHU Nanwen,JIA Jinping

Journal Article

Phosphate-induced differences in stabilization efficiency for soils contaminated with lead, zinc, and

Jie Ren, Zhuo Zhang, Mei Wang, Guanlin Guo, Ping Du, Fasheng Li

Journal Article

An integrated method for the rapid dewatering and solidification/stabilization of dredged contaminated

Hefu Pu, Aamir Khan Mastoi, Xunlong Chen, Dingbao Song, Jinwei Qiu, Peng Yang

Journal Article

Effects of sepiolite on stabilization remediation of heavy metal-contaminated soil and its ecological

Yuebing SUN,Dan ZHAO,Yingming XU,Lin WANG,Xuefeng LIANG,Yue SHEN

Journal Article

Stabilization treatment of contaminated soil: a field-scale application in Shanghai, China

Changbo ZHANG, Qishi LUO, Chunnu GENG, Zhongyuan LI

Journal Article

Stabilization-based soil remediation should consider long-term challenges

Zhengtao Shen, Zhen Li, Daniel S. Alessi

Journal Article

Leaching characteristics of heavy metals during cement stabilization of fly ash from municipal solid

LIANG Shunwen, JIANG Jianguo, ZHANG Yan, XU Xin

Journal Article

Stabilization of hexavalent chromium with pretreatment and high temperature sintering in highly contaminated

Haiyan Mou, Wenchao Liu, Lili Zhao, Wenqing Chen, Tianqi Ao

Journal Article

The stabilization effect of Al2O3 on unconventional Pb/SiO2 catalyst

Journal Article