The Dependence of properties of the samples made of unburnt clay with sapropel additives on the amount of sapropel

Abstract

The dependence of thermo physical properties of samples formed at 21 MPa from clayey soil and sapropel mixture having 22% of absolute humidity on the amount of sapropel. It is established that when the amount of sapropel changes in samples from 8 to 20%, the density, heat conductivity and absorptive power in samples are inversely proportional to the amount of sapropel. After fulfilling experimental data of linear regressive analysis it has been established that the amount of sapropel has greater influence on the average of density (Beta=-0,794) than humidity of samples (Beta=0,528); humidity in samples has greater influence on the average of heat conductivity (Beta=0,819) than the amount of sapropel (Beta=-0,485); and the duration of sample keeping over the water has larger influence on the average of sample humidity (Beta=0,902) than the amount of sapropel (Beta=-0,313).