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Particle Breakage of a Crushed Sandstone–Mudstone Particle Mixture
Sandstone–mudstone particle mixture (SMPM) is often used as a main filling material in many agriculture-related and civil engineering works such as in rockfill dams and filling foundations. The SMPM was found crushed seriously since it is mixed with mudstone particles. In this study, the compressive rheological test was conducted to investigate the influence of different vertical stress and mudstone particle content on the particle breakage of SMPM. Research findings suggested that particle breakage of SMPM in the conditions of different pressure and mudstone particle content ranged between 4.24 and 24.34% and rose along with the increase in vertical pressure and mudstone particle content. A power function relation between particle breakage and vertical pressure was proposed. It was found that, with small confining pressure, the particle breakage of SMPM particles calculated by the proposed prediction formula was larger than that of rockfill materials. The particle breakage prediction formulas of rockfill materials underestimated the particle breakage of SMPM during the small confining pressure.
Particle Breakage of a Crushed Sandstone–Mudstone Particle Mixture
Sandstone–mudstone particle mixture (SMPM) is often used as a main filling material in many agriculture-related and civil engineering works such as in rockfill dams and filling foundations. The SMPM was found crushed seriously since it is mixed with mudstone particles. In this study, the compressive rheological test was conducted to investigate the influence of different vertical stress and mudstone particle content on the particle breakage of SMPM. Research findings suggested that particle breakage of SMPM in the conditions of different pressure and mudstone particle content ranged between 4.24 and 24.34% and rose along with the increase in vertical pressure and mudstone particle content. A power function relation between particle breakage and vertical pressure was proposed. It was found that, with small confining pressure, the particle breakage of SMPM particles calculated by the proposed prediction formula was larger than that of rockfill materials. The particle breakage prediction formulas of rockfill materials underestimated the particle breakage of SMPM during the small confining pressure.
Particle Breakage of a Crushed Sandstone–Mudstone Particle Mixture
Lecture Notes in Civil Engineering
Tutumluer, Erol (editor) / Nazarian, Soheil (editor) / Al-Qadi, Imad (editor) / Qamhia, Issam I.A. (editor) / Qiu, Zhenfeng (author) / Yang, Shaobo (author) / Wang, Junjie (author) / Cao, Ting (author)
2021-08-31
12 pages
Article/Chapter (Book)
Electronic Resource
English
Taylor & Francis Verlag | 2016
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