Properties of polypropylene fiber reinforced silica fume expansive-cement concrete |
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| Affiliation: | 1. Empa, Swiss Federal Laboratories for Materials Science and Technology, Switzerland;2. Institute for Infrastructure & Environment, School of Engineering, University of Edinburgh, UK;3. Institute for Building Materials (IfB), ETH Zurich, Switzerland;1. Dipartimento di Scienze e Metodi Dell''Ingegneria, Università di Modena e Reggio Emilia, Italy;2. INSTM, National Interuniversity Consortium of Materials Science and Technology, Florence, Italy;3. Dipartimento di Ingegneria Industriale, Università di Parma, Italy |
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| Abstract: | This paper reports on a comprehensive study on the mechanical properties of expansive-cement concrete containing silica fume and polypropylene fibers. Properties studied include those of the fresh mix properties, length change, rapid chloride permeability, compressive strength, flexural behavior, and bond of hardened concrete. Silica fume content used was 5 and 10% and fiber volume fraction was 0.10, 0.30, and 0.50%. Results show that the use of 5% silica fume combined with 0.30% fiber volume fraction results in optimum mixture design for repair applications from the standpoints of workability, bond, strength, length change and permeability. |
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