Polycarboxylate superplasticizer is a superplasticizer of this kind of performance mode. It is a concrete dispersant in cement concrete application.
In the application process, the same price level exceeds the international leading standards.
Various products are different in the application process, poly carboxylic acid superplasticizer is no exception, the following content is the advantages and disadvantages ofPolycarboxylate superplasticizer;
Advantage:
1.Low dose, high water reduction rate.
After application, the water reduction rate can reach 45%, which can be used to prepare high strength concrete and its performance mode.
2. Slump loss is small when the slump is small, and the slump loss of 2h of ready-mixed concrete is less than 15%.
More conducive to concrete inter-row transport and pumping.
(3) after the application of concrete folding small, can greatly reduce the concrete folding, significantly improve the concrete volume reliability and use performance
4. Low carbon products, environmental protection, superplasticizer harmless.
This is an environmentally friendly product certification, so customers can rest assured to buy.
5. Good reliability, no precipitation and dissolution at the bottom temperature
6. Polycarboxylic acid water reducer has a relatively low alkali content, usually less than or equal to 0.2%
Defect:
1. In high temperature environment, slump retention is not enough.
2. Relatively strong temperature sensitivity.
The same kind of Polycarboxylate superplasticizer is used in different decoration projects, and the slump retention of concrete differs greatly.
3. In the process of application, it is highly sensitive to the mud content of sand and stone.
4. The mechanical sand is mixed badly, and the sensitive dose endangers the decoration project
5. The adaptability of polycarboxylic acid water reducer to other concrete and admixtures is poor in the application process, so it is necessary to carry out adaptability test to concrete and other admixtures before application, in order to determine their characteristics
