Behavior of self compacting concrete containing ladle furnace slag and steel fiber reinforcement |
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| Affiliation: | 1. Civil Engineering Department, University of Burgos, Calle Villadiego s/n, 09001 Burgos, Spain;2. Civil Engineering Department, University of Burgos, Avda. Cantabria s/n, 09006 Burgos, Spain;3. Mining, Metallurgical and Materials Science Department, University of Basque Country, Alameda de Urquijo s/n, 48013 Bilbao, Spain;1. Department of Civil Engineering, Chung Yuan Christian University, Chung Li, 32023, Taiwan, ROC;2. Department of Civil Engineering, National Kaohsiung University of Applied Sciences, 807, Taiwan, ROC;1. Faculty of Technology, Fibre and Particle Engineering Unit, P.O. Box 4300, 90014 University of Oulu, Finland;2. NMR Research Group, Faculty of Science, University of Oulu, P.O. Box 4300, 90014 University of Oulu, Finland;1. CONSTRUCT-GEO, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, s/n 4200-465, Porto, Portugal;2. Instituto Eduardo Torroja (IETcc), CSIC, C/Serrano Galvache 4, 28033 Madrid, Spain;3. CQ-VR, School of Science and Technology, University of Trás-os-Montes e Alto Douro, 5000-801 Vila Real, Portugal;1. Department of Architectural Engineering, Kongju National University, South Korea;2. Department of Architectural Engineering, and Engineering Research Institute, Gyeongsang National University, South Korea;1. Department of Civil and Environmental Engineering, Michigan Technological University, 1400 Townsend Dr., Houghton, MI, 49931-1295, USA;2. Key Laboratory for Green & Advanced Civil Engineering Materials and Application Technology of Hunan Province, College of Civil Engineering, Hunan University, Changsha, 410082, China |
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| Abstract: | Self compacting concrete mixtures with the use of ladle furnace slag as filler and steel fibers as reinforcement were produced and tested in the laboratory. Different contents of ladle furnace slag filler, ranging from 60 to 120 kg/m3, and steel fibers, ranging from 0% to 0.7%, were used. The different mixtures were tested in the fresh state for fluidity, passing ability and resistance to segregation and in the hardened state for compressive strength, fracture toughness, freeze-thawing resistance and chloride penetration resistance. The test results showed that ladle furnace slag can be used as filler for self compacting concrete, as adequate consistency and workability was achieved, while compressive strength and durability were improved. Ladle furnace slag can also be combined with steel fibers, which considerably increase fracture toughness, in order to produce a high performance self compacting concrete using a low-cost industrial by-product such as ladle furnace slag. |
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| Keywords: | Self compacting concrete Ladle furnace slag Steel fiber reinforcement Mechanical characteristics and durability |
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