The certification standard for polycarboxylate superplasticizers serves as a crucial evaluation criterion for procured products; therefore, establishing and adhering to this certification standard is of paramount importance.

For the domestic ones like JG/T 223-2017 in China, it comprehensively defines different aspects for superplastificant de policarboxilat. It clearly classifies the product types based on its characteristics and application scenarios. The performance indicators it sets cover aspects such as water reduction rate, slump retention ability, and compressive strength ratio at different ages. Through strict test methods stipulated in this standard, manufacturers can accurately assess whether their products meet the requirements. And it also puts forward clear quality requirements to ensure that when used in construction projects, it won’t cause issues like affecting the overall strength or durability of concrete structures.

Similarly, JT/T 769-2009 focuses on its application in highway engineering. Given the special requirements of highway concrete, such as withstanding heavy traffic loads and various weather conditions for a long time, this standard tailors the performance indicators and test methods accordingly. It ensures that the superplastificant de policarboxilat used in highway projects can help produce concrete with excellent durability and mechanical properties.

The group standards like T/ZZB 0836-2018 and T/CBMF 187-2022 play an important role in promoting the standardization and improvement of the industry. They often incorporate the latest technological achievements and practical experiences, constantly raising the bar for product quality. T/WH WX 003-2019, which is specific to railway engineering, takes into account the unique demands of railway concrete, like resistance to vibration and ensuring long-term stability, and sets corresponding technical specifications through these standards.

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