At present, concrete is widely used as the main load-bearing body for building structures.
To a certain extent, the performance of concrete has a significant impact on the overall quality of buildings, and the design of concrete mix proportions is a decisive factor affecting the quality of concrete.
The design method of ordinary concrete mix proportion is based on the calculation of water cement ratio, including trial mixing, adjustment, calculation, determination, re mixing, and forming.
For concrete with design requirements for durability, relevant durability tests are conducted to verify and determine the final mix proportion.
Following this process for mix design often increases the design cycle.
The concept of pure water cement ratio is adopted in the ordinary mix design method, while the liquid admixture currently used has a large dosage.
Considering the water in the admixture, the concept of total water cement ratio is proposed.
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