2020
DOI: 10.3390/buildings10010011
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Mechanical Properties of Ultra-High Performance Concrete with Partial Utilization of Waste Foundry Sand

Abstract: Waste foundry sand (WFS) is a ferrous and non-ferrous foundry industry by-product, produced in the amount of approximately 700 thousand tons annually in Poland and it is estimated that only a small percentage of this waste is recycled. The study used WFS to produce ultra-high performance concrete (UHPC) as a partial substitute for quartz sand. It was replaced with WFS levels of 0%, 5%, 10%, and 15% by weight of quartz sand content. The UHPC mixtures were produced and tested to determine the compressive strengt… Show more

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Cited by 35 publications
(9 citation statements)
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“…High performance concrete (HPC) is a concrete based on a cement matrix with natural aggregate and added additives and admixtures, which is distinguished by, among others, good workability for at least 1 h, compressive strength over 60 MPa at 28 days, and water/binder ratio less than 0.4. In order to obtain a tighter structure of the mixture, micro-fillers and nanoparticles are used, e.g., fly ash, silica fume, ground granulated blast furnace slag, metakaolin, and nano-silica [1][2][3][4][5][6][7][8][9][10]. Compared to normal strength concrete, HPC has a more homogeneous and dense structure with a smaller number of pores and shrinkage cracks occurring.…”
Section: Introductionmentioning
confidence: 99%
“…High performance concrete (HPC) is a concrete based on a cement matrix with natural aggregate and added additives and admixtures, which is distinguished by, among others, good workability for at least 1 h, compressive strength over 60 MPa at 28 days, and water/binder ratio less than 0.4. In order to obtain a tighter structure of the mixture, micro-fillers and nanoparticles are used, e.g., fly ash, silica fume, ground granulated blast furnace slag, metakaolin, and nano-silica [1][2][3][4][5][6][7][8][9][10]. Compared to normal strength concrete, HPC has a more homogeneous and dense structure with a smaller number of pores and shrinkage cracks occurring.…”
Section: Introductionmentioning
confidence: 99%
“…It can be reintegrated into the steelmaking process as a ux or aggregate, thereby curbing the consumption of raw materials and energy. Furthermore, cinder nds application in construction materials like concrete and asphalt, offering a sustainable substitute for conventional aggregates[6], [7]. On a global scale, the iron and steel industry annually yield millions of tons of cinder.…”
Section: Introductionmentioning
confidence: 99%
“…Research on low-emission concrete, also called green concrete, is focused on waste recycling [ 1 , 2 ] and the reduction of Portland clinker in the concrete composition without affecting mechanical properties. Concrete additives, such as fly ash and blast furnace slag, are used for this purpose [ 3 , 4 , 5 ].…”
Section: Introductionmentioning
confidence: 99%