The effect of mineral additives on the mechanical and durability properties of self compacting concrete

In this study, it was investigated that the effect of different mineral additives on the workability, mechanical and durability properties of self compacting concrete. For this reason, fly ash, granulated blast furnace slag (GBFS), natural zeolite, limestone powder, basalt powder and marble powder were used in different substituation rates and it was carried out the workability tests to determine `?self compactibility?? and the mixtures which provided this qualification, tests proceeded to determine mechanical and durability properties of SCC.As workability tests, slump-flow, T50, V-funnel and L-box tests were performed and `?self compactibility?? were determined. Mechanical properties were determined by compressive strength tests, ultra-sound velocity tests and elastic modulus tests. Moreover, large-sized (300x150x20 cm), L-shaped and double-sided reinforcement mesh equipment which was designed often combined with a special pre-screen in the form of equipment and placed in molds and different SCC mixtures were produced. Afterwards, by taking into account reinforcement points, the different height levels of the curtain wall core samples taken and these samples were made on the compressive strength, unit weight and water absorption tests.Impermeability tests, rapid chloride ion permeability tests, high temperature effect tests and sulphate resistance tests were performed as durability tests on the SCC.When test results were evaluated it can be seen that, the best results were obtained in the workability tests by granulated blast furnace slag 60% substituation rate with cement in SCC. As early age compressive strength, marble powder has shown the best performance by 10% substituation rate with cement. According to 400 days compressive strength test results, fly ash shown the best performance by 25% substituation rate with cement. It can be seen that self compacting concretes consolidated by its own weight homogeneously in the narrow curtain wall reinforcement construction elements. Finally, GBFS and fly ash SCC mixtures performed better performance than other mixtures as durability properties.