1. High performance concrete has certain strength and high impermeability, but it does not necessarily have high strength, medium and low strength can also be used.
2. High performance concrete has good workability, the concrete mixture should have high fluidity, the concrete is not layered and separated in the forming process, and it is easy to fill the model; Pumped concrete and self compacting concrete also have good pumpability and self compacting performance.
3. The service life of high-performance concrete is long. For the special parts of some special protection projects, the control of structural design is not the strength of concrete, but the durability. The main purpose of the application of high performance concrete is to make the concrete structure work safely and reliably for more than 50 ~ 100 years.
4. High performance concrete has high volume stability, that is, the concrete should have low hydration heat in the early stage of hardening and small shrinkage deformation in the later stage of hardening.
To sum up, high-performance concrete is the concrete that can better meet the structural function requirements and construction process requirements, which can maximize the service life of concrete structure and reduce the project cost.
