@Article{jrm.2020.012695,
AUTHOR = {Dingbang Zhang, Yi Zhang, Zhiguo Cao, Tao Cheng},
TITLE = {Optimization of Roots and Copper Slag to Reinforce Soft Soil Using Response Surface Method},
JOURNAL = {Journal of Renewable Materials},
VOLUME = {8},
YEAR = {2020},
NUMBER = {11},
PAGES = {1391--1409},
URL = {http://www.techscience.com/jrm/v8n11/40261},
ISSN = {2164-6341},
ABSTRACT = {In this paper, roots and copper slag were used to overcome the weak-
ness and reinforce the mechanical property of soft soil. The experiments were
designed by the Response Surface Method (RSM), the content optimizing of
the root permeated copper slag mixed soil for achieving appropriate values of
shear strength and the final results evaluating were also conducted by RSM. Four
independent variables including moisture content (12–21% by dry weight of the
mixture), slag content (10–20% by dry weight of the mixture), roots content
(0–1.1% by dry weight of the mixture), and aspect ratio of roots L/d (5–40) were
studied and a generalized response model was built to predict the experimental
results. The optimum contents of the four independent variables were suggested
as 15.41% (moisture), 16.30% (copper slag), and 0.82% (roots) with an aspect
ratio of 28.14, respectively. It can be concluded from the verification experiments
that the predicted values of the soil mechanical property are almost equal to the
experimental values, which validate the response model. Moreover, a typical
subgrade model was built for proving the practical advantages of using the
above-mentioned mixture as subgrade fill.},
DOI = {10.32604/jrm.2020.012695}
}