The strength of high performance concrete can be affected by many factors. In the production and application, if there is a problem in a certain link, it will have a direct impact on the strength of concrete. Therefore, in the design of concrete mix ratio, it is necessary to improve the strength of concrete mix.
2 Strictly control the water-binder ratio
In the process of high performance concrete preparation, it is necessary to ensure the amount of cementitious materials and water consumption, so as to effectively reduce the water-binder ratio, but also should effectively control its range, not too low, to ensure the use of requirements.
3 Reasonable design of sand content
For high performance concrete, sand content can directly affect its performance. Therefore, in the optimization of the mix ratio design, the relevant staff to carry out strict control of the sand content of concrete, can be achieved by reducing the porosity of coarse aggregate, particle grading and cementitious material dosage.
4 Reasonable selection of admixtures and mineral admixtures
Whether admixture, or mineral admixture, in the selection must maintain its good application performance, meet the requirements of high performance concrete preparation, so as to ensure the quality of concrete preparation. Therefore, the rational selection of admixture and mineral admixture is also a key link in optimizing the design of high performance concrete mixture ratio.
