Shrinkage prediction of recycled aggregate structural concrete with alternative binders through partial correction coefficients

Estimating the shrinkage of structural concrete is essential to calculate, at design stage, stresses that a structure may experience due this phenomenon. Nevertheless, changes in composition, as well use wastes raw materials, alter behaviour and render invalid shrinkage-prediction models from standards. This paper shows procedure estimate recycled aggregate made with alternative binders. based on modifying estimated through Eurocode 2 or ACI 209.2R by multiplying it partial correction coefficient for every change composition. The application high-performance self-compacting concretes various contents different maturity, reactive magnesium oxide ground granulated blast furnace slag showed suitable estimating long-term maximum deviations ±10%. However, obtain an adequate accuracy, necessary bear mind some tips, such need consider prediction interactions between factors, usefulness natural logarithm age improve estimation accuracy convenience introducing concrete-age-dependent reach accurate estimations early ages. Finally, coefficients are found be simpler nature model, so model recommended predicting concrete.