Effect and mechanism of different excitation modes on the activities of the recycled brick micropowder
Source abstract
Abstract
Abstract The recycled brick micropowder was formed after crushing and ball milling and waste clay bricks have great potential activity. It can replace some percentage of cement in the preparation of concrete through activation effects of excitation, and thus, reutilization of waste products is the objective of this study. This study analyzed the activation effects of mechanical excitation, chemical excitation, and high-temperature excitation on the activity of regenerated brick powder. The correlation between different excitation methods and the activity index was fitted, and the microstructure and mechanism of action of the material were analyzed and revealed using SEM and XRD techniques. The results show that after using mechanical excitation, chemical excitation, and high-temperature excitation to activate the brick powder, the activity index of the material was improved to varying degrees, and there is a good correlation between different excitation modes and the activity index. The study shows that the 45 min mechanical excitation of ball milling and the high-temperature excitation of 800 have better effects, with the highest activity index reaching 71%, and the highest activity index in the chemical excitation mode is 65%. Considering the excitation effect, energy consumption, economy, and practical operation feasibility, it is recommended to use the ball milling 45 min excitation method as the best activation method for the recycled brick micropowder.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Recycled Aggregate Concrete Performance · Concrete and Cement Materials Research · Innovative concrete reinforcement materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Civil Engineering, Zhengzhou University , Zhengzhou 450001 , China
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