The Thermal Conductivity and Mechanical Properties of Waste Granulated Slag Aggregate Concrete
2019
GEÇTEN, Osman | GÜL, Rüstem
This study deals with the research of the use of the waste Ferrochromium slag as lightweight aggregate of concretes. Thesematerials were examined whether they are used for lightweight aggregates instead of natural aggregates or not. Therefore, thegranulated slag aggregate (GSA) was used to produce the waste lightweight aggregate concrete (WLC) in different rate instead ofnatural aggregate. To determine the effect of GSA ratio, different cement dosage on the some mechanical properties and thermalconductivities of concrete, 0%, 25%, 50%, 75% and 100% GSA ratios were used instead of normal aggregate by volume, 300, 400,500 kg/m3cement dosages were used and 3±1cm slump was also used in this study. Some properties such as unit weights, thermalconductivities, compressive strengths and modulus of elasticity of these WLC obtained were compared to the some propertiesof the concrete by using sand. It was observed that the unit weights of the concretes produced by using the GSA were 17%-20%lower than those of the concretes by using normal aggregate (NA), being the thermal conductivity 1.95%-43.9% and the modulesof elasticity as well as the compressive strengths were inversely changed with the increase of being used GSA ratio. The resultsindicated that the GSA can be safely used in the production of insulation concrete and semi lightweight concrete.
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