Interaction of Mixing Water with Superlasticizers and Hyperplasticizers Additives in Concrete Mixture


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The article deals with the mechanism of interaction of super-plasticizers and hyper-plasticizers additives with mixing water, the formation of micelles and organized water. The interaction of mixing water and additives with Portland cement particles, surface tension, specific surface of bindings and their significance in setting and hardening processes are considered. It is shown that a local effect plays a decisive role in micro-heterogeneous organized media associated with the dissolution of hydrophilic and hydrophobic molecules in the volume of the micellar system or the receptor molecule cavity. In this case, the change of dissolved substances properties is due to the change of the medium state only in the microenvironment, and not in the whole solvent - water. The surface energy of the dispersed material and the degree of dispersion are very important for the concrete technology. All dispersed materials of the system are unstable. The aggregation of powder particles of building materials spontaneously takes place in highly dispersed powders and if such powders get pressure, it is possible to get a hard and strong material without water and additives.



Edited by:

Dr. Denis Solovev




V.N. Vernigorova and S.M. Sadenko, "Interaction of Mixing Water with Superlasticizers and Hyperplasticizers Additives in Concrete Mixture", Materials Science Forum, Vol. 945, pp. 176-181, 2019

Online since:

February 2019




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