Application of Quadratic Orthogonal Regressive Analysis on the Three Ingredients Optimum Design of Cement

Less experiment workload is needed by using the orthogonal experimental design than using the trial and error method.The orthogonal experimental point has good representative,the quadratic orthogonal regressive system model can be set up to instruct the product and experiment without excessive test samples.The design of granular stabilizing cement proportion is a three ingredients optimization. The Quadratic Orthogonal Regressive Analysis is employed to design the granular stabilizing cement's proportion.The quadratic regressive equation is obtained on the investigation of 7 day compressive strength;the optimum formula of the special cement is obtained from this equation by mathematical analysis.The significance of the regressive equation is proved to be very good with the F inspection.The granular soil stabilizing cement optimum proportion obtained by this method is very accurate.A great deal of experiment workload is saved so that the quadratic orthogonal regressive analysis is very effective to be used as three ingredients material proportion optimization.