Use of mathematical statistics methods in the development of the technology of chamotte-based concrete heat-insulating products

Abstract

Results of studies carried out with the use of the methods of mathematical statistics and aimed at the development of the technology of pressed chamotte-based concrete heat-insulating products with an apparent density of not more than 1.1 g/cm³, which are similar in their strength and heat-insulating properties to ShL-0.9 light-weight products according to GOST 5040 – 78, are presented. It is demonstrated that mathematical statistics methods are useful in investigations of objects characterized by a large number of input parameters. Models of the dependence of the property characteristics of products on the ratio of the investigated factors are constructed and the region of the compromise optimum is determined. The correct choice of the combination of factors producing a prevailing effect on the target function is confirmed by regression correlation analysis. It is demonstrated that the properties of products can be predicted in a wide range of compositions, which is ensured by the adequacy of the constructed regression equations. The results of the studies have been confirmed experimentally.