https://doi.org/10.55956/JQBP6004

Abstract. The fractionability and modulus of deformation of individual fractions of ash and slag crushed stone samples (in a dry and saturated state) taken from the dumps of Novosibirsk CHP-3 (burning coals of the Kansk-Achinsk coal basin), as well as Novosibirsk CHP-2 and Seversk CHP (burning coals of the Kuznetsk coal basin) were determined. to assess the factors affecting the mechanical strength of ash and slag rubble, calcination losses, the content of hazel and needle particles, dusty clay particles and clay in lumps were additionally determined. The difference in the mechanical strength of samples of material of different genesis was revealed. The graphs obtained during the tests are evaluated, on the basis of which the characteristics of the deformability of the material (at different sizes) are calculated. The factors influencing the mechanical strength of ash and slag rubble are determined. Dependences linking the deformation parameters of ash and slag rubble and the results of determining their fractionability are obtained. Some mechanical and physical parameters of ash and slag rubble have been established, based on which the directions of possible application in the construction of highways have been clarified. A mathematical dependence has been found for predicting the deformation modulus of ash and slag rubble, which is necessary for the design of structures made of this material.

Keywords: construction, motor roads, road pavement, ash and slag mixtures, slag crushed stone, crushability, deformation modulus.

Lunev A.A. Strength and deformation characteristics of slag crushed stone of coal thermal power plants // Mechanics and Technology / Scientific journal. – 2023. – No.2(80). – P.22- 28. https://doi.org/10.55956/JQBP6004

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