EXPANSION OF HARDENED CEMENT PASTE IN COMPOSITE BINDING SYSTEM BASED ON STEELMAKING LADLE SLAG

In modern conditions, the construction industry of the Russian Federation is aimed at the introduction of progressive inte-gral approaches that consider the possibility of significant reduction of industrial waste accumulation, as well as its prevention. This can be done by increasing the range and volume of recycling of secondary materials and technogenic waste at construction industry enterprises. The proposed steelmaking waste can replace imported aluminate and sulphoaluminate cements, reduce the cost of composite binders and ultimately improve the environmental situation in our country. The paper studies linear defor-mations of cement mortars based on composite binders obtained using steelmaking waste - ladle slag, the influence of the type of sulphate component on the shrinkage-expansion deformation of hardened cement paste is studied.