@article{MAKHILLJEAS20094313118,
    title = {Effect Superplasticizer and Water-Binder Ratio on Freshened Properties and Compressive Strength of SCC},
    journal = {Journal of Engineering and Applied Sciences},
    volume = {4},
    number = {3},
    pages = {232-235},
    year = {2009},
    issn = {1816-949x},
    doi = {jeasci.2009.232.235},
    url = {https://makhillpublications.co/view-article.php?issn=1816-949x&doi=jeasci.2009.232.235},
    author = {Yoyok Setyo and},
    keywords = {self compacting concrete,compressive strength,Freshened properties,superplasticizer,water-binder ratio,workability},
    abstract = {This study presents, the results of an experimental research carried out to investigate the use of tests performed in effectiveness of superplasticizer and water-binder ratio for Self-Compacting Concrete (SCC). The materials employed were cement, silica fume, sand as fine aggregate, a maximum 14 mm diameter coarse aggregate and a policarboxylate based superplasticizer. In this study, four mixtures with variation of superplasticizer, four mixtures with variation of water-binder ratio and one mixture for control were investigated. Several tests such as slump flow, slump flow time (T<SUB>50</SUB>) and J-ring were carried out to determine freshened properties of SCC. Performance of hardened concrete was determined by classical strength test. The compressive strengths at 3, 7 and 28 days were measured. Test results indicate that the slump-flow values of the SCC mixtures were measured between 650-800 and 550-650 mm for variations of superplasticizer and water-binder ratio, respectively. The slump flow time (T<SUB>50</SUB>) was measured when, the concrete was slumping until it reached 500 mm of flow. Flow time (T<SUB>50</SUB>) increase with increasing of water-binder content. However, it is decrease with increasing of superplasticizer content. A lower superplasticizer and W/B ratio leads to a higher strength but lower workability and vice versa.}
    }