With the rapid development of the national economy and the continuous expansion of the application field of concrete additives, the demand for concrete is increasing, the quality requirements are higher and higher, and the performance requirements are more and more comprehensive and diversified. Therefore, the variety and performance requirements of concrete additives are higher and higher, and the technical level of the application of additives is also higher and higher. The development trend of concrete additives will be as follows:
1. Designing external concrete additives according to service requirements
The requirements of concrete additives used under different conditions are also different, and sometimes the additives are even required to have a variety of functions. The multi-function of concrete additives can be understood as the design of additives according to their properties. The design of admixtures according to their properties can reduce the cost of concrete materials, meet the requirements of performance-based design of high performance concrete, and optimize the performance of admixtures and concrete. It is of great theoretical significance and engineering application value to study the performance-based design of concrete additives and its mechanism.
Chemical synthesis and physical compounding are two technical ways to design concrete additives according to application requirements. As long as the use requirements are met, no matter what approach is taken, it is advisable. In particular, it is worth mentioning that the molecular structure of polycarboxylic water reducer can be changed according to the requirements of use, so that the development of polycarboxylic water reducer can meet the actual needs of different projects.