Wellington Longuini Repette

TL;DR: Amorphous nano-silica (nS) particles were incorporated in cement pastes and mortars, and their effect on the fresh state behavior was analysed as mentioned in this paper, where the influence of nS content was better observed on yield stress when compared with plastic viscosity values (the first increased about 66.5% while the latter just increased 3.6%).

TL;DR: In this article, the authors investigated the relationship between ASC hydration, unrestrained drying and autogenous shrinkage of mortar specimens and determined the chemical and microstructure evolution due to hydration.

TL;DR: In this paper, the effects of nanosilica and silica fume on rheology, spread on flow table, compressive strength, water absorption, apparent porosity, unrestrained shrinkage and weight loss of mortars up to 28 days were investigated through factorial design experiments.

TL;DR: In this article, the characteristics of blast furnace slag (BFS) pastes activated with hydrated lime and gypsum were compared in relation to compressive strength, shrinkage, and microstructure (porosity, hydrated products).

TL;DR: In this paper, the effects of nanosilica (nS), microsilica (silica fume, SF) and their simultaneous use on the microstructure of cement pastes and the mechanical properties of mortars were investigated.