Properties of concrete incorporating fly ash and ground granulated blast-furnace slag |
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| Affiliation: | 1. College of Civil Engineering, Lanzhou University of Technology, Lanzhou 730050, China;2. Jiangsu Key Laboratory of Construction Materials, Southeast University, Nanjing 211189, China;3. Department of Civil Engineering, Technical University of Denmark, Lyngby 2800, Denmark;4. College of Mechanics and Materials, Hohai University, Nanjing 211100, China;5. School of Civil Engineering, Hefei University of Technology, Hefei 230009, China;1. School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou 510006, Guangdong, China;2. Division of Engineering, NYU Abu Dhabi, P.O. Box 129188, Abu Dhabi, United Arab Emirates;1. School of Materials Science and Engineering, Southeast University, Nanjing 211189, China;2. Jiangsu Research Institute of Building Science Co, Ltd, State Key Laboratory of High Performance, Civil Engineering Materials, Nanjing 211100, China;3. Department of Materials Science and Engineering, University of Sheffield, Sheffield S13JD, UK;1. School of Civil Engineering, SASTRA University, Thanjavur 613401, India;2. Roever Engineering College, Perambalur, India;3. Civil Engineering Dept, TKR Engineering College, Hyderabad 500097, Telangana, India;4. School of Civil Engineering, SASTRA University, India |
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| Abstract: | This paper presents a laboratory study on the influence of combination of fly ash (FA) and ground granulated blast-furnace slag (GGBS) on the properties of high-strength concrete. A contrast study was carried out for the concrete (GGFAC) incorporating FA and GGBS, control Portland cement concrete and high-volume FA high-strength concrete (HFAC). Assessments of the concrete mixes were based on short- and long-term performance of concrete. These included compressive strength and resistance to H2SO4 attack. The microstructure of the concretes at the age of 7 days and 360 days was also studied by using scanning electron microscope. The results show that the combination of FA and GGBS can improve both short- and long-term properties of concrete, while HFAC requires a relatively longer time to get its beneficial effect. |
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