Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Multivariate Experimental Study on EICP Combined with Polypropylene Fiber Solidified Desert Sand
https://orcid.org/https://orcid.org/0000-0002-5540-1704
https://orcid.org/https://orcid.org/0000-0002-8285-2447
In this study, Enzyme-Induced Carbonate Precipitation (EICP) combined with polypropylene fiber technology was used to solidify desert sand, the orthogonal theory was used to design the different levels of the five test variables of cementation solution concentration, urease concentration, enzyme gel ratio, fiber length and fiber content, and the curing effect of EICP combined with polypropylene fiber was studied by macroscopic test of unconfined compressive strength and calcium carbonate content and microscopic test of scanning electron microscope (SEM) and nuclear magnetic resonance (NMR). The results show that the primary and secondary order of the influence of the five test variables on the unconfined compressive strength and calcium carbonate content is: fiber content >fiber length >urease concentration >enzyme gel ratio >cementation solution concentration, in which the fiber length and fiber content had a significant effect on it, and the urease concentration had a little significant effect on it. The incorporation of polypropylene fiber promotes the deposition of calcium carbonate, restricts the displacement and deformation of sand particles, effectively fills the pores between particles, significantly reduces the pore size, and improves the pore structure, which provides a reference for subsequent research and practical geotechnical applications.
Multivariate Experimental Study on EICP Combined with Polypropylene Fiber Solidified Desert Sand
https://orcid.org/https://orcid.org/0000-0002-5540-1704
https://orcid.org/https://orcid.org/0000-0002-8285-2447
In this study, Enzyme-Induced Carbonate Precipitation (EICP) combined with polypropylene fiber technology was used to solidify desert sand, the orthogonal theory was used to design the different levels of the five test variables of cementation solution concentration, urease concentration, enzyme gel ratio, fiber length and fiber content, and the curing effect of EICP combined with polypropylene fiber was studied by macroscopic test of unconfined compressive strength and calcium carbonate content and microscopic test of scanning electron microscope (SEM) and nuclear magnetic resonance (NMR). The results show that the primary and secondary order of the influence of the five test variables on the unconfined compressive strength and calcium carbonate content is: fiber content >fiber length >urease concentration >enzyme gel ratio >cementation solution concentration, in which the fiber length and fiber content had a significant effect on it, and the urease concentration had a little significant effect on it. The incorporation of polypropylene fiber promotes the deposition of calcium carbonate, restricts the displacement and deformation of sand particles, effectively fills the pores between particles, significantly reduces the pore size, and improves the pore structure, which provides a reference for subsequent research and practical geotechnical applications.
Multivariate Experimental Study on EICP Combined with Polypropylene Fiber Solidified Desert Sand
https://orcid.org/https://orcid.org/0000-0002-5540-1704
https://orcid.org/https://orcid.org/0000-0002-8285-2447
In this study, Enzyme-Induced Carbonate Precipitation (EICP) combined with polypropylene fiber technology was used to solidify desert sand, the orthogonal theory was used to design the different levels of the five test variables of cementation solution concentration, urease concentration, enzyme gel ratio, fiber length and fiber content, and the curing effect of EICP combined with polypropylene fiber was studied by macroscopic test of unconfined compressive strength and calcium carbonate content and microscopic test of scanning electron microscope (SEM) and nuclear magnetic resonance (NMR). The results show that the primary and secondary order of the influence of the five test variables on the unconfined compressive strength and calcium carbonate content is: fiber content >fiber length >urease concentration >enzyme gel ratio >cementation solution concentration, in which the fiber length and fiber content had a significant effect on it, and the urease concentration had a little significant effect on it. The incorporation of polypropylene fiber promotes the deposition of calcium carbonate, restricts the displacement and deformation of sand particles, effectively fills the pores between particles, significantly reduces the pore size, and improves the pore structure, which provides a reference for subsequent research and practical geotechnical applications.
Multivariate Experimental Study on EICP Combined with Polypropylene Fiber Solidified Desert Sand
KSCE J Civ Eng
Cui, Meng (Autor:in) / Xiong, Huihui (Autor:in) / Lv, Suying (Autor:in) / Zheng, Junjie (Autor:in) / Cui, Mingjuan (Autor:in) / Zeng, Chen (Autor:in)
KSCE Journal of Civil Engineering ; 28 ; 2221-2230
01.06.2024
10 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Multivariate Experimental Study on EICP Combined with Polypropylene Fiber Solidified Desert Sand
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