Abstract The present study aimed to determine the rheological behavior of activated phosphorus slag (AAPS) with a combination of Ca(OH)2 and Na2CO3 (CNC activator) or Na2SO4 (CNS activator) compared to OPC paste. The findings showed that the rheology of AAPS pastes fit with the Herschel-Bulkley model and behaved like a shear-thinning fluid. The AAPS pastes rheology is affected by concentration and nature of activator. The shear stress in AAPS pastes was lower than OPC paste, and increased with increasing the activator concentration. In early ages, reaction products of PS/CNC pastes included calcite-type compounds with the formed gel while gypsum compounds formed in the PS/CNS pastes. This resulted in higher shear stress and lower workability for PS/CNC pastes compared to PS/CNS pastes. The formed gel due to interaction between Ca2+ ions of CNC activator and Si4+ ions of Phosphorus slag caused an increase in the shear stress for PS/CNC during the time.

中文翻译：

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含石灰和碱性盐的活性磷渣的流变学

摘要 本研究旨在确定与 OPC 糊相比，使用 Ca(OH)2 和 Na2CO3（CNC 活化剂）或 Na2SO4（CNS 活化剂）组合的活化磷渣 (AAPS) 的流变行为。研究结果表明，AAPS 糊剂的流变学符合 Herschel-Bulkley 模型，并且表现得像一种剪切稀化流体。AAPS 糊状物的流变性受活化剂浓度和性质的影响。AAPS 糊料中的剪切应力低于 OPC 糊料，并随着活化剂浓度的增加而增加。在早期，PS/CNC 糊剂的反应产物包括方解石型化合物与形成的凝胶，而石膏化合物在 PS/CNS 糊剂中形成。与 PS/CNS 浆料相比，这导致 PS/CNC 浆料具有更高的剪切应力和更低的可加工性。