HYDRATION OF PORTLAND CEMENT WITH THE ADDITION OF HIGHLY DISPERSED CHALK
Journal Title: Збірник наукових праць Українського державного університету залізничного транспорту - Year 2018, Vol 175, Issue 9
Abstract
The effect of the addition of highly disperse chalk on the hydration processes of Portland cement has been studied. The possibility of interaction reactions is confirmed by thermodynamic calculations. Calculated the amount of calcium carbonate used to create the presented compounds, taking into account the mineral composition of cement, the degree of hydration of clinker minerals, the degree of assimilation of gypsum.
Authors and Affiliations
Olga Borziak, Svitlana Chepurna
Keywords
Related Articles
- EP ID EP357228
- DOI 10.18664/1994-7852.175.2018.127256
- Views 61
- Downloads 0
MAINTENANCE OF REPAIR CAPACITY OF LOCOMOTIVE DEPARTMENT IN THE PERIOD OF VARIABLES OF THE REPAIR PROGRAM
The problems of the restructuring of Ukrainian railways, which was started in the 90s of the last century, are considered. The latest scientific articles on the effective use of complex points for diagnostics and fasten...
NUMERICAL INVESTIGATIONS OF DYNAMIC TRANSVERSE FORCES IN CURVES, IN THE ZONES OF RAILS VARIETIES
The purpose of the work is to identify, by numerical methods, the causes of intensive lateral wear of rails and other bounces of the track in curves of small radius. The research has been carried out for the most mass ty...
INVESTIGATION INTO THE CONDITIONS CAUSING TERMINAL-BOLTED TRACK GAUGE WIDENING AND CONSIDERATION OF IT IN THE CRITICAL GAUGE CALCULATION
In the current regulatory document UZ – Instructions for the device and the content Railways of Ukraine, the largest permissible value of track gauge – 1548mm, which was scientifically proved only for use as a sub-rail b...
CALCULATION OF COMPRESSED AND BENDED STEEL REINFORCED CONCRETE CONSTRUCTIONS IN THE RETAINED FORMWORK
The problems of calculation of compressed and bended steel reinforced concrete structures in the retained formwork were considered. Apart it’s necessary to consider the questions which are related with calculation tube...
IMPROVING THE QUALITY OF MECHANICAL PROCESSING OF RAIL RAILS BY GRIND PROCESS
The article deals with the process of restoring the geometry of a rail track by grind process. It is noted that the periodic correction of the profile of the rail head by grind process makes it possible to ensure the bes...