Print Email Facebook Twitter Energy consumption of a laboratory jaw crusher during normal and high strength concrete recycling Title Energy consumption of a laboratory jaw crusher during normal and high strength concrete recycling Author Nedeljković, Marija (TU Delft Materials and Environment; Rijkswaterstaat) Kamat, Ameya (TU Delft Heritage & Architecture) Holthuizen, Patrick (TU Delft Materials and Environment) Tošić, Nikola (Universitat Politecnica de Catalunya) Schlangen, E. (TU Delft Materials and Environment) Fennis, Sonja (Rijkswaterstaat) Date 2023 Abstract This paper presents the measurement and analysis of energy consumption of a laboratory jaw crusher during concrete recycling. A method was developed to estimate the power requirements of a lab-scale jaw crusher. The impact of material properties on the crusher performance is studied. Eight concrete strength classes (C20/25–C80/95) were considered in the approach. Concrete specimens were cured for 28 days; at which time, concrete properties were obtained through tests such as bulk density, compressive strength, tensile strength, rebound number and ultrasonic pulse velocity. The impact of different aperture size (5 mm and 25 mm) on the energy consumption was also studied. From the experimental results, it is demonstrated that there is a strong dependance of energy consumption on the compressive strength of concrete. Energy of crushing for specimens with a 90 MPa compressive strength was four times higher than the energy needed to crush specimens with a 28 MPa compressive strength. Furthermore, the crushing requires three times more energy when the smaller aperture size is used to process concrete specimens. The results of this study can form a basis for a future large-scale field analysis and a detailed determination of the energy and economic efficiency of concrete recycling. Subject Compressive strengthConcrete crushingEnergy consumptionJaw crusher To reference this document use: http://resolver.tudelft.nl/uuid:f58b99c8-2e8c-43a3-b4ea-73326cfb5dfa DOI https://doi.org/10.1016/j.mineng.2023.108421 ISSN 0892-6875 Source Minerals Engineering, 204 Part of collection Institutional Repository Document type journal article Rights © 2023 Marija Nedeljković, Ameya Kamat, Patrick Holthuizen, Nikola Tošić, E. Schlangen, Sonja Fennis Files PDF 1_s2.0_S0892687523004351_main.pdf 12.72 MB Close viewer /islandora/object/uuid:f58b99c8-2e8c-43a3-b4ea-73326cfb5dfa/datastream/OBJ/view