Function of Polycarboxylate Acid Superplasticizer in Concrete Water Reducer
Publish Time: 2020-06-11 Origin: Site
Since from the year 2010, Shijiazhuang City Horizon Chemical Industry Co., Ltd. has began the investment and research on new type concrete water reducer-PCE raw materials and PCE production.
People use concrete water reducer start from calcium lignosulfonate and then naphthalene series water reducing agent, and met the problem with low water reducing or environment harmful, etc. problems. So the new generation water reducer is developed to solve the problems. That is polycarboxylate superplasticizer-PCE. It performs well in concrete water reducing rate and high slump retention and also is environment friendly.
Polycarboxylate superplasticizer has wide application is some big projects, like highway, bridge, dam, tunnel, high-rise building and other projects.
How does polycarboxylate superplasticizer works?
In a word, it is because of its specially designed structure. Polycarboxylate superplasticizer has artificially molecular design of a "comb" or "treelike/dendtire", there are many branched chains with certain length and rigidity on the main chain of the molecule.
There are also sulfonates or other groups on the main chain that can make the cement particles electrified, which can play the role of traditional water reducer. More importantly, once the main chain is adsorbed on the surface of the cement particles, the branch chain and the branch chain on the surface of other particles form a three-dimensional cross, which hinders the particles from approaching each other, so as to achieve the dispersion (i.e. water reduction) effect. This kind of steric hindrance is not weakened by the extension of time, so the dispersing effect of polycarboxylate water reducer is more lasting.
For polycarboxylate superplasticizer production and application has not a long history as the former concrete water reducers, people may met some problem in using process.
We can provide technical support and help you solve the problem in polycarboxylate superplasticizer production and application.