The effect of changes in contribution rates concrete in self compacting concrete

In this study, plasticizer content of self-compacting concrete additives and concrete effects of changing rates of mineral additives were investigated. Silica fume as a mineral additive, plasticizer as an additive in the third generation of polycarboxylate-based superplasticizer was used. Contribution rates were made to determine the trial transcripts. Trial transcripts that result from increasing and decreasing rates of contribution to the optimum design of the mixture were obtained from 9 serial mixing. How much of this series automatically restores settle criteria and hardened concrete properties were evaluated.Mineral additives on series is changed as % (0, 10, 20) and the rate of contribution of the plasticizer is changed as% (1.3, 1.5, 1.7) . The amount of dosage were kept constant to 500, water/powder volume was also kept at 0,42. The most important factor in fresh and hardened concrete properties is the amount of concrete decomposition depending on contribution rate of silica and plasticizer ,and is the settle of boundaries. Series of 10S1.3A and 10S1.5A is that the best results are a series taken in terms of fresh and hardened concrete properties.