Released heat of hydrating particle fractions of Portland cement

• Published in: MATEC web of conferences Vol. 403; p. 2013
• Main Authors: Reiterman, Pavel, David, Tomáš, Šmilauer, Vít
• Format: Journal Article Conference Proceeding
• Language: English
• Published: Les Ulis EDP Sciences 2024
• Subjects: 20th century; Cement hydration; Construction industry; Hydration; Mechanical properties; Particle size; Particle size distribution; Portland cements; Czech Republic
• ISSN: 2261-236X; 2274-7214; 2261-236X
• DOI: 10.1051/matecconf/202440302013

Portland cement had belonged to the most used binder world-wide. Besides long tradition of its production, its specific technical properties are highly different in comparison with previous decades. Currently produced Portland cement exhibits similar mechanical properties, however the process of its hydration had slightly different character, inducing new challenges and technical difficulties during its use. The particle size distribution of currently produced cement is highly different in comparison with previous decades, because of optimized grinding process motivated by the reduction of related costs. Hence, the fines create the dominant part of current Portland cement. Present work follows previous research focused on the crack-resistant cement and confirmed direct influence of the fast kinetics of cement hydration on crack induction on drying. This paper deals with an experimental study focused on the hydration heat of selected particle fractions of Portland cement.