Speaker
Description
Marble production is one of the most critical sectors in Turkey, particularly in Afyonkarahisar. The marble dust (MD) waste can cause one of the leading environmental problems for Afyonkarahisar. Unfortunately, MD is not recycled and used enough in the industry, but it can be used as a filler in Self-Compacting Concrete (SCC). It can also be a by-product of the concrete industry because, as an inorganic material, MD can be used in the same way as powdered limestone in the production of SCC. Moreover, the MD can be used directly without any additional processing. This application can bring economic benefits and pollution pre-vention to the environment. The advantage of using a filler in SCC is that the workability can be improved while the cement content can be reduced simultaneously. A reduction in cement content can be an economical solution. When the pores between the aggregates are filled, the durability of the concrete can be in-creased. Therefore, the MD can be a convenient option for a filler. This study used 0, 50, 100, 150, and 200 kg/m3 of MD as a replacement binder for SCC. This research compares the environmental effects of the SCCs produced with various dosages of MD added instead of cement to make an Interlocking Block Pavement. Concrete paving blocks have many advantages over asphalt on environmental aspects. Evaluations of these SCC mix designs were done via CCaLC2 software in this research. These designs' Life Cycle Assessment was considered "cradle to gate." The outputs of this study can be used to evaluate the impact of these designs on the environment such as CO2 emissions, Human Toxicity Potential (kg DCB eq./f.u.), Eutrophication Potential (kg PO4 eq./f.u.) and Acidifi-cation Potential (kg SO2 eq./f.u.).
| Keywords | Life Cycle Assessment, Self-Compacting Concrete, Waste Marble Dust, Marble Powder, Interlocking Block Pavement. |
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| Topics | Circular Economy |
