引用本文摘 要：從流體力學的角度對水泥凈漿流動度試驗開展研究，在考慮流體表面張力和表面浸潤性的情況下，對流體屈服應力和流動度之間的關系開展了較文獻中現有結果更為嚴格的理論分析，獲得了一組新的公式，完善了Roussel等人的理論工作。在此基礎上，定量計算了表面張力和浸潤性、截錐圓模容積、漿體密度對屈服應力和流動度之間關系的影響。 Abstract: The mini-conical slump flow test, also known as the fluidity test, is one of the most common methods for quality control in characterizing cement pastes and grouts and for a quick evaluation of the performance of chemical admixtures. There have already been many research efforts to relate the final spread of the slumped paste to its yield stress, with maybe the most convincing one being the theoretical work of Roussel et al., where analytical expressions were derived based on hydrostatic considerations, with the influences of surface tension and wettability accounted for by a fitting parameter. Here, a more rigorous theoretical treatment of the effects of surface tension and wettability is repored. A set of equations for the relation between final spread and yield stress, with no physical ambiguous fitting parameters, are derived. The results are compared with those of Roussel et al., and the influences of surface tension and wettability, sample volume, and paste density are studied within this theoretical framework.
王衍偉,張倩倩,冉千平,等.水泥凈漿流動度試驗的流體靜力學理論分析[J].混凝土與水泥制品,2018(2):1-6. WANG Y W,ZHANG Q Q,RAN Q P,et al.Theoretical Analysis on Hydrostatics of Cement Paste Fluidity Test[J].China Concrete and Cement Products,2018(2):1-6.