Influence of clays on the rheology of cement pastes

By N. Tregger, Margaret E. Pakula, Surendra P. Shah. 2010

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Rate of thixotropic rebuilding of cement pastes modified with highly purified attapulgite clays (2013, background): “Therefore clays can expect to flocculate in pore solution, which has been confirmed by previous studies [10,11].”
Modification of cement-based materials with nanoparticles (2013, background): “This behavior has previously been tied to flocculation behavior, where studies have shown that clays increase flocculation strength [21] and floc size [22].”
Nano-modification of cementitious material: toward a stronger and durable concrete (2016, background): “Results demonstrated that through proper proportioning of fly ash, superplasticizers, and a small addition of nanoclay ( 1% by mass of binder, the nanosized attapulgite clay), it is possible to design an SCC mix that experiences high flowability during casting and high green strength immediately aft”
Use of creep recovery protocol to measure static yield stress and structural rebuilding of fresh cement pastes (2016, background): “However, characterization was limited to steadystate shear conditions [40,41].”