Introduction To Knowledge Of Polycarboxylic Superplasticizer

Introduction to knowledge of polycarboxylic superplasticizer

Development Status of Concrete Admixtures

Water reducer is an important concrete admixture and one of the important products of the pillar industry of new building materials. Efficient water reduction

The agent not only greatly improves the mechanical properties of high-strength concrete, but also provides a simple and easy construction process. At present

The widely used superplasticizer is mainly naphthalene series products.

Naphthalene series superplasticizer contributes to the progress of concrete (concrete) technology and concrete construction technology in China, and to the improvement of building quality and

It plays an important role in service life, reducing energy consumption, saving cement and reducing environmental pollution. Due to the high efficiency of naphthalene series

High-strength concrete and high-fluidity concrete emerged from the application of water-reducing agent is the third time in the history of concrete development after reinforced concrete and prestressed concrete

Major revolution. It can be said that the technology and application of water-reducing agent represent the level of building materials and construction technology of a country.

However, the development of naphthalene series water reducer in recent decades has also exposed some problems that are difficult to overcome. For example, use it

The slump loss of the prepared concrete is very obvious, and it is impossible to have a higher water reduction rate. The main raw material for its production - naphthalene is

The source of by-products of coking industry is restricted by the iron and steel industry, and so on. Therefore, foreign countries actively research and develop non-naphthalene series

Effective water-reducing agent, with rich petrochemical products as raw materials, can reduce naphthalene series with extremely high water-reducing string and minimal slump loss

Water-reducing agent is overshadowed, thus creating a new situation of water-reducing agent technology and concrete construction technology.

The development of polycarboxylic series water-reducing agent in China started relatively late, and its dosage only accounts for about 2% of the total dosage of water-reducing agent, but its domestic

The application in internal heavy and large projects is gradually increasing. Many large foreign chemical building materials companies, such as Degussa Group and Grace

Building materials companies, Mabey Group, Sika Company, Fuselor Company and Huawang Company, etc., have introduced their own polycarboxylic acid series

Water-reducing agent products are introduced into the Chinese market through import, which plays a significant role in promoting the application of polycarboxylic water-reducing agent in engineering

It plays an important role. It is worth mentioning that a few domestic manufacturers have also begun to produce and sell polycarboxylic acid series water-reducing agent products.