Recent research led by LU Wei from the College of Safety Science and Engineering at Anhui University of Science and Technology has unveiled significant insights into the deformation characteristics of natural and saturated crushed gangue with large particle sizes. This study, published in the journal ‘Mining Science’, sheds light on how these materials behave under compression, a topic of growing importance in the construction and mining sectors.
As construction projects increasingly seek sustainable materials, understanding the properties of crushed gangue—often a byproduct of coal mining—can lead to more effective and efficient use of resources. The findings indicate that over 90% of the total deformation occurs during the initial loading stage, with the load gradient and water content playing crucial roles in how these materials respond to pressure.
LU Wei noted, “The deformation patterns we observed can significantly influence the design and stability monitoring of construction projects. By optimizing the use of crushed gangue, we can enhance structural integrity while also minimizing waste.” This is particularly relevant as the construction industry faces mounting pressure to adopt greener practices and reduce its carbon footprint.
The research highlights that approximately one-third of the energy consumed during the deformation process is due to friction, while the remaining two-thirds is attributed to crushing. Notably, energy consumption decreases in saturated conditions, suggesting that using water to saturate crushed gangue could be a viable strategy to enhance performance and reduce operational costs.
Moreover, the study reveals a distinct three-stage deformation pattern—sharp deformation, linear deformation, and creep deformation—providing a framework for engineers and construction managers to predict material behavior under various conditions. “When the deformation of crushed gangue exceeds 15%, we see an improved bearing capacity, which is a critical factor for construction applications,” LU Wei explained.
The implications of these findings are far-reaching. By understanding the relationship between void ratios and secondary crushing rates, construction professionals can better assess the viability of using crushed gangue in projects, ultimately leading to safer and more cost-effective construction practices. The research suggests that optimal void ratios can be identified to maximize material performance, presenting a clear path for innovation in material usage.
As the construction industry evolves, studies like this one provide essential insights that can drive sustainable practices and improve the efficiency of resource use. The potential for crushed gangue to serve as a reliable construction material not only supports environmental goals but also enhances the economic viability of projects. For more information on LU Wei’s research, visit lead_author_affiliation.
This study, published in ‘Mining Science’ (translated from ‘矿业科学学报’), marks a significant step toward integrating sustainable materials into mainstream construction practices, potentially shaping the future of the industry.
