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A platform for research: civil engineering, architecture and urbanism
Use of bottom ash and stone dust to make lightweight aggregate
Highlights Artificial lightweight aggregate was produced with by-products from other industry. 80–20% of stone dust to bottom ash was used as the main materials. 5% of Na2SO4 was used for flux. 10% of oxidizing slag was used for bloating agent.
Abstract The objective of this study is to describe how by-products of bottom ash and stone dust can be converted to lightweight concrete aggregate; both stone dust and bottom ash have a chemical composition ideal for use as expansive lightweight aggregates. This study determined the optimum proportion of bottom ash and stone dust. Bloating agents and fluxes such as Na2SO4, Na2CO3, CaSO4, CaCO3, and NaOH along with glass abrading sludge, Fe2O3, blast furnace slag, and oxidizing slag were tested to determine the optimal properties of manufactured lightweight aggregate products. Furthermore, the type of furnace needed for production and the sintering temperature required for the materials was tested and determined. This study also determined that an oven-dried density of 1.46g/cm3 with an absorption ratio of 8.5% can produce lightweight aggregates ideal for use as a lightweight concrete for structural usages.
Use of bottom ash and stone dust to make lightweight aggregate
Highlights Artificial lightweight aggregate was produced with by-products from other industry. 80–20% of stone dust to bottom ash was used as the main materials. 5% of Na2SO4 was used for flux. 10% of oxidizing slag was used for bloating agent.
Abstract The objective of this study is to describe how by-products of bottom ash and stone dust can be converted to lightweight concrete aggregate; both stone dust and bottom ash have a chemical composition ideal for use as expansive lightweight aggregates. This study determined the optimum proportion of bottom ash and stone dust. Bloating agents and fluxes such as Na2SO4, Na2CO3, CaSO4, CaCO3, and NaOH along with glass abrading sludge, Fe2O3, blast furnace slag, and oxidizing slag were tested to determine the optimal properties of manufactured lightweight aggregate products. Furthermore, the type of furnace needed for production and the sintering temperature required for the materials was tested and determined. This study also determined that an oven-dried density of 1.46g/cm3 with an absorption ratio of 8.5% can produce lightweight aggregates ideal for use as a lightweight concrete for structural usages.
Use of bottom ash and stone dust to make lightweight aggregate
Han, Min-Cheol (author) / Han, Dongyeop (author) / Shin, Jae-Kyung (author)
Construction and Building Materials ; 99 ; 192-199
2015-09-21
8 pages
Article (Journal)
Electronic Resource
English
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