Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Non-sintered dredged sediments artificial cobblestones: Preparation, structure and properties
Highlights Dredged sediments are utilized to produce a new artificial cobblestones in non-sintered method. Dregred sediments artificial cobblestones (DSACs) has a multilayer core–shell and three-dimensional network-like structure. When the particle size of DSAC is between 10 and 20 mm, the single strength of DSACs reaches the maximum of 1.25 MPa.
Abstract A novel preparation process of non-sintered dredged sediments artificial cobblestones (DSACs) was conducted in this study. DSACs with a multilayer core–shell structure was manufactured by wrap-shell process. The performance characteristics, such as particle form factor, water absorption, particle size distribution, strength, density, frost resistance, and salt resistance of different particle sizes of DSACs were investigated. The results showed that DSACs was nearly spherical, and with a three-dimensional network-like structure. The single DSACs strength increased with the decrease of its particle size. When the particle size of DSACs was between 10 and 20 mm, the single strength of DSACs reached the maximum of 1.25 MPa. After 50 freeze–thaw cycles and 50 days of soaking in salt solution, the mass of DSACs showed no obvious mass loss. However, with the increase of the particle size, the strength of the DSACs got weakened. With the feasibility of preparation process, this technology paves the avenue to the resource utilization of dredged sediments and avoids excessive exploitation of mineral resources.
Non-sintered dredged sediments artificial cobblestones: Preparation, structure and properties
Highlights Dredged sediments are utilized to produce a new artificial cobblestones in non-sintered method. Dregred sediments artificial cobblestones (DSACs) has a multilayer core–shell and three-dimensional network-like structure. When the particle size of DSAC is between 10 and 20 mm, the single strength of DSACs reaches the maximum of 1.25 MPa.
Abstract A novel preparation process of non-sintered dredged sediments artificial cobblestones (DSACs) was conducted in this study. DSACs with a multilayer core–shell structure was manufactured by wrap-shell process. The performance characteristics, such as particle form factor, water absorption, particle size distribution, strength, density, frost resistance, and salt resistance of different particle sizes of DSACs were investigated. The results showed that DSACs was nearly spherical, and with a three-dimensional network-like structure. The single DSACs strength increased with the decrease of its particle size. When the particle size of DSACs was between 10 and 20 mm, the single strength of DSACs reached the maximum of 1.25 MPa. After 50 freeze–thaw cycles and 50 days of soaking in salt solution, the mass of DSACs showed no obvious mass loss. However, with the increase of the particle size, the strength of the DSACs got weakened. With the feasibility of preparation process, this technology paves the avenue to the resource utilization of dredged sediments and avoids excessive exploitation of mineral resources.
Non-sintered dredged sediments artificial cobblestones: Preparation, structure and properties
Xue, Kairu (Autor:in) / Ju, Chenggong (Autor:in) / Yang, Mao (Autor:in) / Li, Na (Autor:in) / Peng, Yuzhou (Autor:in) / Peng, Xiao (Autor:in) / Wu, Yan (Autor:in)
12.05.2020
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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