Concrete Pumpability Assessment with Rheology-based Analytical Model

Methods for the assessment of concrete pumpability are briefly reviewed; in particular, the rheology-based analytical model is introduced. With the application of different methods in representative cases of super high-rise building construction, the rheology-based model is validated. It is found that the rheology-based analytical model predicts the pumpability of modern high-flowability concrete with good accuracy. A series of parametric study is conducted to investigate the influence of important parameters concerned with concrete pumpability. The parameters having linear or nonlinear influence on pumpability are distinguished. This work provides valuable supports to the improvement of construction technology and project management of super high-rise buildings.