期刊名称：Journal of Materials and Environmental Science
印刷版ISSN：2028-2508
出版年度：2017
卷号：8
期号：s
页码：4847-4853
出版社：University of Mohammed Premier Oujda
摘要：The aim of this work is to optimize the operational conditions for the containmentmatrix of ion exchange resins "IER", considered as a radioactive waste of low andmedium activity, generated from the nuclear reactor, using the surface responsemethodology of experimental design.In order to achieve our objective, we studied theinfluence of three key parameters (cement content, silica fume content and water/cimentratio"W/C") on the response studied, which is the compressive strength at long-term ofthe IER containment matrix. A second-degree polynomial mathematical model wasselected to predict the operating conditions that allowed us to optimize the operationalconditions of confinement of the IER cementitious matrix while improving itsmechanical properties.The obtained results by the selected mathematical model showedthat the compressive strength at 28 days of the IER confinement matrix depends only onthe linear terms a2 and quadratic a22/a33 relative to the factors: silica fume content, theinteraction between silica fume and the interaction between the W/C ratio.At the end ofthis work, we succeeded to develop a mathematical model to optimizing the mostsuitable experimental parameters, for the confinement of this type of radioactive wastewith a minimum of tests. This model was validated for predicting the compressivestrength of this matrix, by playing on the various factors mentioned above.
