The use of water reducing agent?

Water reducing agent added to the concrete mix has a dispersing effect on the cement particles, can improve its workability, reduce the unit water consumption, improve the fluidity of the concrete mix; or reduce the unit cement consumption, saving cement. Water reducing agent is a kind of concrete admixture that reduces the water consumption of mixing under the condition of maintaining the slump of concrete basically unchanged. Most of the water reducing agent belongs to anionic surfactant, there are lignin sulfonate, naphthalene sulfonate formaldehyde polymer and so on.

Expanded Information:

High-efficiency water-reducing additives can reduce water by up to 20% or more. Mainly naphthalene system, melamine system and the water reducing agent compounded by them, of which naphthalene system is the main one, accounting for 67%. Especially in China, most of the high-efficiency water reducing agents are naphthalene-based high-efficiency water reducing agents with naphthalene as the main raw material. It is characterized by high water reduction rate (15% to 25%), no air-entraining, small effect on setting time, relatively good adaptability to cement, can be used in combination with other additives, the price is relatively cheap. Naphthalene water reducing agent is often used to formulate large mobility, high strength, high performance concrete. Naphthalene-based high efficient water reducing agent according to the Na2SO4 content of its products can be divided into high-concentration type products (Na2SO4 content <3%), medium-concentration type products (Na2SO4 content of 3% to 10%) and low-concentration type products (Na2SO4 content >10%). Most of the naphthalene-based high-efficiency water reducing agent synthesis plants have the ability to control the Na2SO4 content below 3%, and some advanced enterprises can even control it below 0.4%.