Özet:

Today, the use of chemical admixtures has become widespread in the concrete sector. It is possible to further improve the performance of concrete with the use of chemical admixtures. As the chemical admixture ratio increases, the concrete strength does not always increase. It is necessary to pay attention to the optimum contents recommended by the manufacturers for different types of admixtures. As well as the positive effect of chemical admixtures on concrete durability, it also provides benefits in workability and compaction. It also has the advantages of reducing the concrete permeability and increasing the freeze-thaw stability. In this study, a high water reducing superplasticizer as chemical admixture was used in concrete production. This is because; this admixture has the increasing the slump and spreading of concrete at a high ratio without changing the concrete consistency. In this study, a series of concrete specimens were prepared by using the chemical admixture at a certain ratio. These specimens were conducted to concrete compressive and splitting tensile strength tests. In order to determine the effect of the chemical admixture on the concrete strength, a series of reference specimens without admixtures were prepared. Thus, the strength of concrete specimens with admixture and non-admixture were compared and discussed. As a result, it has been determined that the strength of the concrete is improved by the use of chemical admixture at a certain ratio and type of admixture to produce the concrete with the desired properties.

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