The design of concrete including micro materials and the investigation of properties

In this thesis study, micro material concrete design was made and its properties were investigated. For this purpose, micronized pumice stone, trass and Ahlat stone were used as aggregate. In the study, CEM II / A-M 42,5 N type cement was used in 450 dosages. Silica fume (SF) and fly ash (FA) were used as mineralogical additives by replacing cement in different proportions by weight. While silica fume from mineralogical additives is used in 0%, 10% and 50%, fly ash additive was used in 0%, 30% and 50%. In addition, used both mineralogical additives (10% SF + 30% FA) together a different series was produced. With indicated these micronized aggregates and mineralogical additives 18 types of micro-material concrete were produced. Produced the concrete samples have been applied during 3, 7, 28 ve 90 days combine cure (normal water cure + 90 °C heating cure in oven). After curing, unit weight, porosity, capillary water absorption, ultrasonic sound permeability (UPV) and compressive strength tests were applied to the samples. Furthermore, 3 different samples were produced by fiber reinforcement to the matrix of the concrete series which gives the best compressive strength and these samples was applied flextural tensile strenght test. In fiber reinforcement, carbon based micro steel fiber (50 kg / m³) and synthetic fiber (6 kg / m³) were used singly and hybrid. According to the results obtained from the study, while the best experimental data was obtained from the series which used pumice stone as micronized aggregate and silica fume as mineralogical additive, the lowest experimental data was obtained from the series used Ahlat stone as micronized aggregate and fly ash as mineralogical additive. Taguchi method applied in thesis study a more economical experiment design was realized and the obtained laboratory results were confirmed by statistical analysis.