In ready-mixed mortar, an appropriate water-retaining and thickening material is usually added, but the water-retaining and thickening material has a stronger water requirement, thus increasing the unit water consumption, also affecting the mechanical properties and durability of mortar, so an appropriate amount of water-reducing agent should be used for the dispersion of cement slurry system… read more →

At present, the more widely used water-reducing agents are lignin-basedwater-reducing agents naphthalene-based superplasticizers, melamine-based superplasticizers and polycarboxylate-based superplasticizers. And their characteristics are as follows: Lignin-basedWater-reducing Agents Lignin-basedwater-reducing agents have lignin sulfonates as the major components, including calcium lignosulphonate, sodium lignosulphonate and magnesiumlignosulphonate, and are ordinary water-reducing agents. They do not have high water-reducing rate, and.. read more →