Predicting Chemical Shrinkage in Hydrating Cements

This paper presents a prediction of chemical shrinkage volume created during the hydration two cements over time using thermodynamic model. Chemical in hydrating is result internal change within sealed conditions due to exothermic reactions and resulting precipitation solid hydrates. Each precipitated phase will contribute their individual stoichiometric properties. As these factors (including early age, drying autogenous nature) overall concrete which may cause long-term performance problems, they are important properties understand. The current model that quantifies first 1000 days cemdata18 database series discrete phases (DSPs) represent C-S-H, has not been quantified literature date. DSPs account for amorphous poorly crystalline nature C-S-H cement, its incongruent dissolution behavior as calcium released solution more so than silicon. A description provided, along with review past methods used quantify development time. also shows linear relationship between degree hydration.