Polycarboxylate superplasticizer has a high water reduction rate and is sensitive to factors such as dosage, water content, temperature, etc. If the site construction personnel lack understanding of the performance of the superplasticizer and use it improperly, the mixed concrete may easily have unstable performance problems. The actual use effect of polycarboxylate superplasticizer is related to the performance of the superplasticizer itself and the way of use. You need to pay attention to the following points in the use process.
1.Compounding is not simply mixing several different components together. You should fully consider the interaction between the components according to the concrete raw materials, mix ratio, technical requirements, etc.
2.Select the suitable main component and dosage according to different cement, admixtures, etc., and determine the type and dosage of other admixtures according to the other performance requirements of concrete.
3.Verify whether the various components and dosages determined above are appropriate through experiments. Investigate the interaction between the admixture components and the impact on concrete performance.
4.When two or more surfactants are used together, there will inevitably be mutual influence, and their effects may be superimposed or canceled, which should be paid attention to.
