Function Synergy of Cross-Linked Cationic PVA Polymer to AMPS-Type Fluid Loss Additive Used for Cement-Based Material

Figure 11

SEM images of hydrating cement-based material with different formulas. FLA A (0.7%BWOC) added (a, b); PVAGB/FLA A (0.2/0.5%BWOC) added (c, d). (a, c) are section direction images; (b, d) are axial direction images.

(a)

(b)

(c)

(d)