This causes the particles to repel each other which breaks up the flocs and releases the trapped water. The dispersion of the cement and release of the trapped water results in a reduction of the plastic viscosity of the concrete, grout, mortar or plaster. Workability is increased and water can be reduced. The molecular structure and charge density of the polymeric superplasticizer determine the effectiveness of the dispersion. Water changes the dry blend of binder and aggregate into a plastic mixture that can be molded and finished to the desired shape.
Water initiates the complex chemical reactions that cause the binder to harden.
Water added in excess of the amount necessary for complete hydration reduces density and strength and increases shrinkage. At higher levels excess water is detrimental to the plastic physical properties. Excess mixing water can be a very expensive ingredient. Substrate Bad Appearance Product Failure Customer Complaints Melment deflocculates the agglomerations that form when water and cement or gypsum are combined. Melment reduces viscosity and increases workability.