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- W3113215055 abstract "In order to disposal the tailings and improve the safety of mines, the cemented paste backfill (CPB) technology has been widely applied to the mines all over the world, and the index of uniaxial compressive strength (UCS) for CPB is one of the most important factors to guarantee the safety of the filling stopes. However, there is little information regarding the coupled effects of curing stress and curing temperature. This study is aimed to investigate the coupled effects of curing stress and curing temperature on the physical and mechanical properties of CPB. Thus, the CPB samples were cured at different curing stress and curing temperature, also the mechanical and physical parameters were frequently tested, the microstructure of CPB was tested by the X-ray diffraction (XRD) and thermal gravity analysis (TGA). The results show that both the curing stress and curing temperature can affect the cement hydration reaction rate, resulting in more hydration products, which is contribute to the UCS acquisition. On the other hand, the water content, dry density and stress-strain curve of CPB were greatly influenced. The results demonstrate that the coupled effects of curing stress and curing temperature should be considered when designing a cost-effective and safety CPB in the underground mines, which can provide technical guidance for the mines." @default.
- W3113215055 created "2020-12-21" @default.
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- W3113215055 date "2021-03-01" @default.
- W3113215055 modified "2023-10-17" @default.
- W3113215055 title "Coupled effects of curing stress and curing temperature on mechanical and physical properties of cemented paste backfill" @default.
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- W3113215055 doi "https://doi.org/10.1016/j.conbuildmat.2020.121746" @default.
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