Title:
Optimization of Lightweight Concrete Process by Gray-Taguchi Method
Author(s):
Mariam Farouk Ghazy and Mohamed Fattouh Abd El Hameed
Publication:
Materials Journal
Volume:
112
Issue:
3
Appears on pages(s):
365-374
Keywords:
crushed shale bricks; gray relational analysis; lightweight concrete; lightweight lime bricks; perlite; polystyrene foam; silica fume
DOI:
10.14359/51687235
Date:
5/1/2015
Abstract:
This study investigated the multi-response optimization of lightweight concrete (LWC) process for an optimal parametric combination to yield favorable compressive strength and density using the Taguchi approach coupled with gray relational analysis (GRA). Sixteen experimental runs based on an orthogonal array of Taguchi method were performed to optimize the process parameters within the experimental domain. The performance characteristics have been selected in relation to parameters of LWC: type of lightweight fine aggregate (LWAFA); replacement ratios of LWA (fine and/or coarse) by volume of normalweight aggregate (NWA); and percentage of foam agent. Optimal results were verified through confirmation experiments. It will be helpful to the engineers in deciding the levels of the LWC parameters for desired performance characteristics.