Polyacrylamide induced flocculation of a cement suspension

Effect of polyacrylamide on rheology of fresh cement pastes

“…For instance, fiber cement composite production involves addition of PAM in order to tailor the flocculation properties to the casting process [1][2][3][4]. According to [5][6][7], PAM allows for an increase in the density of the resulting industrial product, which, in turn, is at the origin of an increase in mechanical strength.…”

Coagulation–Flocculation Method for the Treatment of Pulp and Paper Mill Wastewater

“…Adding flocculant has a significant effect on the settling time when alum and PACl are used as coagulants. The bridging mechanism of the high-molecular-weight polyacrylamide may cause the flocculant to coil the flocs to become more compact, stronger, and larger (Negro et al 2006). When the floc size becomes larger, it Effect of flocculant dosage on turbidity reduction, TSS removal and COD reduction in PACl/Organopol 5415 system.…”

Synergistic interactions of chemical additives on the strength development of silicate cement by a box‐behnken model optimization

“…On the one hand, during the cement hydration phase, PAM reacts with Ca 21 and Al 31 cations to form ionic compounds, acting as a flexible filler and reinforcement in the hole of the cement mortar, and thereby decreasing the porosity and improving the compressive strength. [5][6][7] On the other hand, PAM introduces closed air bubbles into the cement paste, which affects the compressive strength of the cement mortar. 8 In general, the ultimate impact of PAM on cement strength can be attributed to the competition results of two contrary effects.…”