Abstract
Concrete is the most widely used building material in the construction of buildings, bridges, highways, and other infrastructure. With the spread of environmental preservation ideas and technological improvement, high-strength concrete materials and their sustainable hybrid design methods have been developed. A sustainable mix design approach for high-strength concrete (HSC) is critical for the construction industry as it is one of the major emitters of CO2 emissions worldwide. Fly ash concrete is an environmentally friendly, economical and sustainable building material. This paper analyzes the sustainable mixed design method of fly ash concrete by combining past scholars' research and practical experience. By analyzing the properties of fly ash, theoretical principles, and some sustainable mixed design methods, the properties (such as durability, compressive strength, etc.) of fly ash HSC are studied. It is found that the properties of fly ash HSC and traditional HSC are similar or even stronger in some aspects, which has a good improvement on the compatibility and durability of concrete. In the future, with the progress of science and technology, people will further study fly ash and HSC, and the application of fly ash in HSC will certainly get greater development, and achieve green development and sustainable development while meeting the strength of concrete.
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