Authors : Arabi N.S. Al Qadi, Kamal Nasharuddin Mustapha, Hashem AL-Mattarneh and Qahir N.S. AL-Kadi
Abstract: A central composite design models was carried out to model the influence of key mixture parameter on fresh and hardened properties affecting the performance of Self-Compacting Concrete (SCC). Such responses included slump flow as a filing ability, L-Box as a passing ability and sieve analysis as resistance to segregation. Thirty-one mixtures were prepared to derive the numerical models and evaluate the accuracy. The models are valid for a wide range of mixture proportioning. The study presents, the derived numerical models that can be useful to reduce the test procedures and trials needed for the proportioning of self-compacting concrete. The qualities of these models were evaluated based on several factors such as level prediction, residual error, residual mean square and correlation coefficients.
Arabi N.S. Al Qadi, Kamal Nasharuddin Mustapha, Hashem AL-Mattarneh and Qahir N.S. AL-Kadi, 2009. Central Composite Design Models for Workability and Strength of Self-Compacting Concrete. Journal of Engineering and Applied Sciences, 4: 177-183.