OPTIMIZATION OF MIX DESIGN OF SELF-COMPACTING CONCRETE USING MATLAB

Thejas C M, Manjunath J, Shruthi L

Abstract: As we know concrete is a complex mixture with varying properties of each ingredient, where in any property of any material can influence the outcome of concrete. Therefore inter-relationship between input variables lead to varying output parameters like fresh and hardened properties. These inter-relationships can be deduced and formulated using previous experimental data. MATLAB helps in formulating the relationships between input variables and output parameters. In the present study input parameters like Volume of Paste, Water Content, Water-cement ratio, Cement Content and Water-Powder content are considered to project output parameters like slump flow, V-funnel, L-box, U-box, J-ring and Compressive strength at 7, 28, 60 and 90 days using experimental results from literature survey. The program thus developed helps us in mix proportioning of input variables for a required set of output parameters. SCC mixes obtained with the help of MATLAB program have been validated by mixing and testing concrete in the laboratory

Keywords: Optimization, Mix design, MATLAB, SCC, Design of Experiments

DOI: https://doi.org/10.15623/ijret.2017.0617004