Strength properties of concrete incorporating coal bottom ash and granulated blast furnace slag.
Coal bottom ash (CBA) and fly ash (FA) are by-products of thermal power plants. Granulated blast-furnace slag (GBFS) is developed during iron production in iron and steel plants. This research was conducted to evaluate the compressive strength property and some durability characteristics of concrete incorporating FA, CBA, and GBFS. FA is used as an effective partial cement replacement; CBA and GBFS are used as partial replacement for fine aggregate without grinding. Water absorption capacity, unit weight and compressive strengths in 7, 28, and 90-day ages were assessed experimentally. For these experiments, concrete specimens were produced in the laboratory in appropriate shapes. The samples are divided into two main categories: M1, which incorporated CBA and GBFS; and M2, which incorporated FA, CBA, and GBFS. Remarkable decreases are observed in compressive strength and water absorption capacity of the concrete; bulk density of the concrete is also decreased. It can be concluded that if the content of CBA and GBFS is limited to a reasonable amount, the small decreases in strength can be accepted for low strength concrete works.
Ozkan
Omer
O
Alapli Vocational School, Zonguldak Karaelmas University, 67850 Alapli, Zonguldak, Turkey. omerozkan@hotmail.com
Yüksel
Isa
I
Muratoğlu
Ozgür
O
D002244:Carbon; D003031:Coal; D060729:Coal Ash; D003252:Construction Materials; D017745:Incineration; D008422:Materials Testing; D052638:Particulate Matter; D012037:Refuse Disposal
D003031:Coal; D060729:Coal Ash; D052638:Particulate Matter; D002244:Carbon