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In modern construction projects, concrete is a widely used building material, and its performance directly affects the quality and durability of the project. With the advancement of science and technology, the research and development of concrete additives has become a key way to improve the performance of concrete. Among them, HPEG Polycarboxylate superplasticizer monomer has become a major innovative breakthrough in the field of concrete technology in recent years with its excellent water-reducing performance and the characteristics of improving concrete workability.

Cement mortar: hpmc​ improve the dispersion of cement sand, greatly improve the plasticity and water retention of mortar, have an effect on preventing cracks and enhance the strength of cement.

Under the condition that the slump of concrete is basically the same, the admixture of mixing water can be reduced. According to the size of its water-reducing rate, it can be divided into ordinary water-reducing agent, high-efficiency water-reducing agent and high-performance water-reducing agent.

Polycarboxylate water-reducing agents has the properties of high water reduction and high slump retention, and can impart high strength and durability to concrete. It has shown outstanding advantages in high-quality projects such as national large-scale water conservancy, nuclear power, and bridges. Compared with naphthalene-based water-reducing agents, polycarboxylate water-reducing agents are sensitive to the mud content of sand and gravel aggregates [1-3] and are expensive. Therefore, in laboratories and engineering construction, attempts have been made to mix polycarboxylate water-reducing agents and naphthalene-based water-reducing agents to take advantage of their respective advantages.

Water reducer is usually called concrete water reducer, which is an additive in concrete. Water reducers are added in concrete construction, do you know why water reducers are added to concrete? What happens if you don't add it? What are the consequences? Let's find out together.

How much can the water reduction rate of polycarboxylic acid high-performance water reducer reach? First of all, we should know that the water reduction rate of polycarboxylic acid water reducer refers to the percentage of water consumption that can be reduced under the specified dosage, that is, the water reduction rate. For example, it was originally necessary to use 100g of water to make the mortar mix.

Due to its excellent properties, polycarboxylate superplasticizers are widely used in many fields, including:

Polycarboxylate polymer powder olycarboxylic acid powder breaks the convention in the production process and adopts thermal synthesis process, which can reduce production costs in terms of energy consumption. No release agent is added, and the purity of the produced products is higher, with the solid content controlled at around 98%. In terms of product performance, high-purity products have the characteristics of low dosage, high active ingredients and good collapse-preserving properties, further reducing customer costs.

Generally speaking, the higher the water reducing rate of water reducing agent is, the more sensitive the mixing logistics mobility is to the content in its effective content range.

As a new type of water-reducing agent after naphthalene-based, melamine-based, aliphatic-based and sulfamate-based water-reducing agents, polycarboxylic acid-based water-reducing agents​ have been widely used in many important projects due to their many unique performance advantages.

Polycarboxylate ether superplasticizer has good dispersibility and flowability for cement at low dosage; When the dosage is greater than 0.12% to 0.22%, there is a very significant increase in the fluidity of the slurry; The loss of fluidity of the slurry within 1 hour decreases with the increase of the dosage.