Abstract:

During the construction of the overseas projects in Uzbekistan, relevant Uzbekistan concrete codes need to be referred to. However, there is some difference between Uzbekistan concrete codes and Chinese concrete codes. In the paper, the correlation between the concrete strength grade and the concrete preparation strength specified in Uzbekistan concrete codes is deduced mathematically, the regulations on the concrete strength grade and the concrete preparation strength specified in Uzbekistan concrete codes and those specified in Chinese concrete codes are presented and compared, and the correlation between the concrete strength grade and the concrete preparation strength are analyzed. Conclusions drawn are as follows: The specifications on the concrete preparation strength in Uzbekistan concrete codes are actually normal distribution based on random variables, which requires adequate guarantee rate for the concrete strength grade; The form of the conversion formula between the concrete preparation strength and the concrete strength grade provided in Uzbekistan concrete codes is different from that provided in Chinese concrete codes, but they can be converted into the same formula, because they are the same in nature; Relevant Uzbekistan organizations have different understanding on these two concepts from Chinese organizations and they also treat these two concepts differently, to which we should pay more attention.

Key words: Uzbekistan, concrete code, concrete, strength grade, preparation strength