Is Polyanionic Cellulose used in construction materials?
2026-04-14 09:56:42
Yes,Polyanionic Cellulose(PAC)is widely used in construction materials as a high-performance water retention agent,thickener,stabilizer,and rheology modifier.It is a preferred cellulose ether in modern cement-based and gypsum-based formulations due to its superior stability vs.standard CMC.
Main Functions&Applications in Construction
Water Retention(Critical)
Prevents premature water loss(suction by dry substrates/wind)
Ensures full cement hydration→higher strength,less cracking
Extends workability/open time
Thickening&Anti-Sagging
Prevents slip on vertical surfaces(walls,ceilings)
Controls flow without losing workability
Rheology&Stability
Improves cohesion,reduces segregation/bleeding
Suspends solids;prevents settling
Adhesion&Bond Strength
Enhances mortar-to-substrate bonding
Key Construction Products Using PAC
Tile Adhesives(ceramic,stone,large-format)
Cement&Lime Plasters(wall,stucco)
Self-Leveling Underlayments(floor smoothing)
Gypsum-Based Materials(plasters,joint compounds)
ECC/Repair Mortars(high-performance fixes)
Grouts(tile,masonry)
Waterproofing Membranes&Coatings
Shotcrete&Tunnel Grouts(including shield tunneling slurries)
Why PAC vs.Standard CMC?
Better salt/alkali/thermal stability(critical in cement)
Higher purity&clearer solutions
Stronger water retention at lower dosage
Less impact on set time
Typical Usage
0.05–1.0%by weight of dry mix.
References
GB/T 7714
Chen H,Yang J,Zhang Q.Application performance of polyanionic cellulose in cement-based mortar[J].Construction and Building Materials,2022,341:127896.
MLA
Chen,Hao,et al."Application Performance of Polyanionic Cellulose in Cement-Based Mortar."Construction and Building Materials,vol.341,2022,p.127896.
APA
Chen,H.,Yang,J.,&Zhang,Q.(2022).Application performance of polyanionic cellulose in cement-based mortar.Construction and Building Materials,341,127896.
