pce admixture pce superplasticizer additives and admixtures

Dispersion effect: After mixing cement with water, due to the hydration of cement particles, a double electric layer structure is formed on the surface of cement particles, making it form a solvated water film, and the surface of cement particles has a opposite charge, resulting in the association between cement particles, making the cement slurry form a flocculation structure, so that 10% ~ 30% of the mixed water is wrapped in cement particles, which cannot participate in free flow and lubrication. Thus, the fluidity of the concrete mixture is affected. When the water reducing agent or PCE superplasticizer is added, the water reducing agent molecules can be absorbed on the surface of the cement particles in a directional manner, so that the surface of the cement particles has the same charge (usually negative charge), forming an electrostatic repulsion, prompting the cement particles to disperse with each other, the flocculation structure disintegrates, and the coated part of the wa…

Pce Based Superplasticizer Cement Superplasitcizer Superplasticizer Concrete Plasticizer Cement Plasticizer