مرکز منطقه ای اطلاع رساني علوم و فناوري - Engineering Characteristics of Some Aggregates Mined in Isparta Region and Investigation of Their Usability in Concrete

Abstract :

In this study the possibility of using aggregates mined from five different aggregate quarries in Isparta region as concrete aggregate is examined. For this purpose four different natural aggregates from Atabey, Gumusgun, Guneykent and Kilic regions, all of which are located inside the boundaries of Isparta Province, and a pumice aggregate which is a light aggregate and has beds in the central region of Isparta are used. After determining physical and mechanical characteristics of aggregates three different concrete samples with different cement dosages (350-400-450) are produced for each aggregate. In addition to performing fresh concrete unit volume weight experiment on the produced concrete also hardened concrete experiments are performed on 7-28 and 90th days both with destructive and non-destructive methods and the utilization potentials of aggregates in the concrete are determined. According to the results of the experiments performed when 28 day compressive strength is taken into account Atabey aggregate with 400 dose has the highest compressive strength which is 44.8 MPa. Generally, Atabey aggregate is the aggregate with the best performance. When the performances of other aggregates in the concrete are examined the best values in concrete production both physically and mechanically are obtained from Gumusgun aggregate, Guneykent aggregate and Kilic aggregate, in descending order. When the results obtained from pumice aggregate are assessed it is deduced that it is not suitable to compare pumice with these light aggregates and that it would be more suitable to assess it comparatively with light aggregates.