It has to be said that in recent years, the synthesis technology of polycarboxylate suerplasticizer mother liquor has become increasingly mature through several updates and iterations, from the high-temperature esterification process that must be used with pure water to the normal-temperature method of tap water. The synthesis threshold of polycarboxylate water reducer has been greatly reduced. Thanks to this, most of the mother liquors on the market have similar performance, providing a relatively common communication basis for compounding technology. Now the raw materials for compounding polycarboxylate water reducer can be roughly divided into the following categories: polycarboxylate mother liquor, retarder, defoamer, air entraining agent, water retaining agent, antifreeze agent, and early strength agent. The types of various raw materials are complicated and diverse. The author adheres to the viewpoint of not looking at advertisements but looking at the efficacy. Focus on introducing the more commonly used types that are easy to adapt to operation.

The construction industry has always been regarded as one of the key industries that pollute the environment. In the past decade, China's construction scale has become larger and larger. At the same time, modern large-scale projects have put forward higher and higher requirements on the comprehensive performance of concrete. Therefore, concrete must be developed in the direction of green, economic, high-strength, and durability. Therefore, concrete admixtures including high-efficiency water-reducing agents will also play an important role in future projects.

Polycarboxylic acid high-performance water reducer/Polycarboxylate Superplasticizer Liquid is the latest leading product at home and abroad, and is the first choice for modern commercial mixing stations.

In actual construction, the optimal air content range of concrete should be determined during the trial mixing process according to the location of the project and the functions of the concrete, and should be effectively controlled to help ensure the construction quality of concrete.

The water-reducing rate of polycarboxylic acid-based water-reducing agents is significantly higher than that of naphthalene-based water-reducing agents. Under the condition of exceeding the same water-reducing rate, the dosage of polycarboxylic acid-based water-reducing agents may be smaller than that of naphthalene-based water-reducing agents;

Sulfonated melamine formaldehyde (SMF) is a Sulfonated Melamine Superplasticizer polymer used in cements and plaster based formulations to reduce water content, while increasing the fluidity and the workability of the mix.

Dispersant MF is the formaldehyde condensation products of methyl naphthalene sulfonic acid sodium, mainly as the dispersant and the filler of reducing dye and disperse dyes, is mainly used in disperse dyes, processing agent and dispersant when reducing dye grinds, and performance is better than dispersant N.

Dispersing agent NNO, also called diffusing agent NNO, dispersant NNO, chemical name: sodium naphthalene sulfonate formaldehyde condensate.