Abstract
Interaction between three Vinylacetate Ethylene (VAE) latices with varied surface properties (charge or PVOH stabilized) and cement were studied, through the combined techniques of adsorption and zeta potential measurement. The results showed that all the VAE latices possessed a negative charge in neutral pH, but a lower charge density at a high pH. The non-adsorbed amount was excluded, based on extrapolation from the linear regression of the total depletion amount. Thereof, the calculated results indicated an analogous Langmuir type adsorption for all the latices. The zeta potential results showed a negligible effect of the non-ionic latices on the electro kinetic properties of the cement. This revealed the significance of PVOH on the adsorption of non-ionic latices.
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