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    Aggregate production: Fines generation during rock crushing M.S. Guimaraes a, J.R. Valdes b, A.M. Palomino c,⁎, J.C. Santamarina d a Aalborg Portland, Denmark b Department of Civil and Environmental Eng., San Diego State University, San Diego, CA 92182, USA c Departmnet of Civil and Environmental Eng., Penn State University, University Park, PA 16802, USA d Civil and Environmental ...

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    Aggregate production: Fines generation during rock crushing. Energy consumption during the rock crushing experiments was kept fairly invariable (Table 3), thus one could expect that the fines generation should be related mainly to the rock properties, i.e

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    Energy consumption during the rock crushing experiments was kept fairly invariable (Table 3), thus one could expect that the fines generation should be related mainly to the rock properties, i.e ...

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    The generation of fines increases when shear is imposed during crushing. Aggregates produced in current crushing operations show the effects of multiple loading conditions and fracture modes.

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    This "Cited by" count includes citations to the following articles in Scholar. ... Aggregate production: fines generation during rock crushing. MS Guimaraes, JR Valdes, AM Palomino, JC Santamarina ... Characterization of fines produced by sand crushing. JR Valdes, E Koprulu. Journal of geotechnical and geoenvironmental engineering 133 ...

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    Aggregate production: Fines generation during rock crushing. ... causes micro-fractures on new aggregate faces and generates a large amount of fines. The generation of fines increases when shear is imposed during crushing. Aggregates produced in current crushing operations show the effects of multiple loading conditions and fracture modes.

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    Though sand is a common proppant, untreated sand is prone to significant fines generation; fines generation is often measured in wt% of initial feed. A commercial newsletter from Momentive cites untreated sand fines production to be 23.9% compared …

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    The generation of fines increases when shear is imposed during crushing. Aggregates produced in current crushing operations show the effects of multiple loading conditions and fracture modes. Results support the producers' empirical observations that the desired cubicity of aggregates is obtained at the expense of increased fines generation ...

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    Aggregate production: Fines generation during rock crushing Marcelo Silva Guimarães , Julio R. Valdés , Angelica M. Palomino , Juan Carlos Santamarina Chemistry

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    Processing of crushed stone for use as construction aggregate consists of blasting, primary and secondary crushing, washing, screening, and stockpiling operations. (1) Quarry by-products are produced during crushing and washing operations. There are three types of quarry by-products resulting from these operations: screenings, pond fines, and ...

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    The generation of fines increases with increasing shear, in both low and high interparticle coordination packings. • The results from this study support the producers' empirical observations that unwanted fines generation and desired aggregate cubicity are mutually dependent—at least in the context of current crushing technology.

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    Aggregate production: Fines generation during rock crushing... Fines generation during rock crushing ... asperities break during shear to overcome rotational ... • A large percentage of the energy required to crush ... A method for calculating the amount of energy required to crush a rock from a feed size to a product size, said method ...

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