Polycarboxylate Superplasticizer For Concrete Water Reducer

There are many alternative names for water-reducing agents, such as "super plasticizer" and "super fluidizer". These are not the main points. The key point is that I can summarize its significant position in one sentence: The performance limit of modern concrete depends on the development level in the field of water-reducing agents!

The macroscopic effect of the water reducer is that, while maintaining the consistency of the concrete unchanged, it reduces the amount of water used in the mixing process, thereby achieving the lowest water-cement ratio or, while keeping the amount of water used in the mixing process constant, it significantly improves the fluidity of the concrete or freshly mixed mortar, achieving the maximum fluidity.

At present, there are many types of water reducers. I will briefly introduce their main classification methods:

① According to their different water-reducing capabilities, they can be divided into ordinary water reducers, high-efficiency water reducers, and high-performance water reducers;
② According to their appearance states, they can be classified as powder form and liquid form;
③ According to the composition of their chemical components, they can be divided into lignosulfonate based superplasticizer, naphthalene based superplasticizer, melamine based superplasticizer, polycarboxylate based superplasticizer, etc.

This product Polycarboxylate Superplasticizer for Concrete Water Reducer is the latest generation of environmentally friendly polycarboxylate high water reducing agent developed by our company Shanxi Jiankai Fine Chemicals Co.,Ltd.

Due to its extremely high water reduction rate, this product can greatly improve the plasticity index of fresh concrete, thereby

improving the pumping and workability of concrete. At the same time, it has excellent performance in terms of strength and growth.

Currently, it is widely believed that the main functions of water-reducing agents are manifested in two aspects:

• Firstly, it is the dispersing effect (electrostatic repulsion, spatial steric hindrance);
• secondly, it is the lubricating effect.

① The dispersing effect refers to the phenomenon that after adding water to the concrete mixture, a flocculation structure will form. After adding the water-reducing agent, the water-reducing agent molecules can quickly adsorb onto the surface of the cement particles, causing the cement particles to carry the same charge and generating electrostatic repulsion, thereby destroying the flocculation structure of the cement;

② The lubricating effect is because the water-reducing agent is a surfactant, and the hydrophilic groups have extremely strong polarity. Therefore, the water-reducing agent molecules adsorbed on the surface of the cement particles will form a solvated water film with water molecules, which will play a very good lubricating role.

Tips: Since polycarboxylate superplasticizers are substances we come across frequently, I will focus on explaining their mechanism of action here: The mechanism of action of polycarboxylate-based superplasticizers is that the main chain adsorbs onto the active sites of the cement particles, generating electrostatic repulsion and forming a double layer structure; the hydrophilic side chains remain in the liquid phase, exerting spatial steric hindrance effects, which further enhances the dispersion stability between the cement particles.

1.High dispersion performance. Polycarboxylate Superplasticizer can provide extremely high water reduction, and the water reduction rate is up to 40%. It provides guarantee for improving concrete work performance, improving concrete strength and durability, and also reducing cost.

2.Molecular controllability. The dispersibility and Plasticity of the high range water reducing agent polycarboxylate superplasticizer can be adjusted by adjusting the molecular weight of the main chain of the molecule, the length of the side chain, the density of the side chain and the type of the side chain group.

3.Can improve the workability of concrete, no stratification, no segregation, no bleeding, good pumpability.

4.It has obvious reinforcing effect on hardened concrete, improves shrinkage performance and improves anti-freezing, anti-seepage and anti-carbonization ability, and prolongs the service life of concrete.

5. Polycarboxylate Superplasticizer is green and environmental production, no formaldehyde and other ingredients.

1.Suitable for mixed concrete and cast-in-place concrete in various industrial and civil buildings;
2.Applicable to various projects with high performance requirements for concrete, such as water conservancy, port, transportation, bridge, subway, electric power, etc.
3.Suitable for high-strength, high-performance, super-fluid vibration-free Self-flow equalization, long-distance transportation concrete.

Shanxi Jiankai Fine Chemiclas Co., Ltd is a large company in production and sales of various concrete admixtures, with annual sales of a variety of admixtures more than 500,000 tons. The products are sold all over the country, used in highways, railways,bridges,culverts, underwater engineering and large buildings. The products quality and after-sales service are well received and praised by all customers.

We are willing to work with friends from all over the world to continue the good reputation of state-owned enterprises!

Now our factory has more than two hundred employees and we have improved the equipments, production process and technical force. Our products are mainly including naphthalene series superplasticizer, Polycarboxylate series superplasticizer, Melamine series superplasticizer, sodium gluconate and wet mixed mortar air suction agent of various concrete admixtures, in total of more than 20 varieties. We will keep excellent quality,high quality service to attractive major projects firm and other users.