Jun. 07, 2022
Polycarboxylate Superplasticizer is a kind of high performance water reducing agent. It is a kind of cement dispersant used in cement concrete applications. Polycarboxylic acid concrete water reducing agent is widely used in roads, bridges, dams, tunnels, high-rise buildings and other projects. This paper mainly introduces the role and advantages of polycarboxylic acid water reducing agent.
According to the structure of the main chain of polycarboxylic acid, polycarboxylic acid series water reducing agent products can be divided into two categories. One is acrylic acid or methacrylic acid as the main chain, grafted with polyether of different side chain length.
The other type is polyether with different maleic anhydride side chain lengths. On the basis of these two types, a series of high-performance water reducing agent products with different characteristics are derived.
Before the emergence of polycarboxylic acid water reducing agent, there are lignosulfonate admixture, naphthalene sulfonate formaldehyde condensate, melamine-formaldehyde condensate, acetone sulfonate formaldehyde condensate, aminosulfonate formaldehyde condensate, etc..
The new generation of polycarboxylic acid water reducing agent has overcome some shortcomings of traditional water reducing agent. It has the advantages of low dosage, good water retention, low shrinkage rate of concrete, strong molecular structure, high performance, and no formaldehyde used in the production process.
For the knowledge of the role of polycarboxylic acid water reducing agent, many people may be relatively unfamiliar. Although it does not prevent the use, it is more beneficial to use. Here is a brief introduction of what it can do.
Improve the ease of concrete or mortar mixing construction.
Improve the physical and mechanical properties such as strength of concrete or mortar.
Save cement or replace special cement.
Accelerate the early strength development of concrete or mortar.
Adjusting the setting and hardening rate of concrete or mortar.
Adjusting the air content of concrete or mortar.
Reducing the initial heat of hydration of cement or retarding the release of heat of hydration.
Improving the permeability of the mixture.
Improving the corrosion resistance of concrete or mortar.
Improves the capillary structure of concrete or mortar.
Improves the pumping ability of concrete.
Improves the corrosion resistance of reinforcement.
Improves the adhesion of the aggregate and mortar interface.
Improves the grip of reinforcement and concrete.
Improve the adhesion of the interface between old and new concrete.
It is due to the above roles of polycarboxylic acid water reducing agent that it can be widely used. Understanding its function also helps to use the product better.
Good compatibility with various cements, prolonging the construction time of concrete.
Low dosage, high water reduction rate and low shrinkage.
Greatly improves the early and late strength of concrete.
Low chloride ion content and low alkali content contribute to the durability of concrete.
The production process is pollution-free and formaldehyde free.
Comply with ISO14000 international standard of environmental management, it is a green product.
With polycarboxylic acid water reducing agent, more slag or fly ash can be used instead of cement to reduce cost.
After reading the above related introduction, do you have a deeper understanding of the advantages of polycarboxylic acid water reducing agent? SANCOLO specializes in the production and sales of water treatment chemicals. As a water treatment chemicals supplier, our products have been recognized and approved by many customers worldwide. Welcome to contact with us.