Journal article

Discussion of "Optimization of carpet waste fibers and steel slag particles to reinforce expansive soil using response surface methodology" by M. Shahbazi, M. Rowshanzamir, SM Abtahi, SM Hejazi [Appl. Clay Sci., doi:10.1016/j.clay.2016.11.027]

Amin Soltani

APPLIED CLAY SCIENCE | ELSEVIER SCIENCE BV | Published : 2019

Abstract

Shahbazi et al. (2017) adopted the response surface methodology (RSM) technique to evaluate the combined efficiency of slag treatment and fiber reinforcement in the stabilization of an expansive soil mixture. The swell percent (S p ), swelling pressure (P s ), and unconfined compressive strength (q u ) were represented as a function of three independent variables (i.e. slag content, fiber content, and fiber aspect ratio) by the second-order polynomial regression model, and ANOVA analysis was adopted to allocate a contribution percentage to each component of the regression model. It was noticed that the reported fitting parameters for S p and P s provided ambiguous predictions, and thus were ..

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University of Melbourne Researchers