DOI: 10.11799/ce202411019
Influence of interaction ratio between limestone powder and fly ash on performance of paste filling material
LYU Wenyu
TANG Li'an
WU Yongping
XIE Panshi
LI Bo
GUO Kai
Abstract：To explore the influence of the interactive ratio of limestone powder and fly ash on the performance of paste filling materials,a series of samples were prepared using limestone powder instead of fly ash at 0,25%,50%,75%,and 100%substitution percentages.The working performance and compressive strength of the paste filling body were evaluated by testing indicators such as expansion rate,slump,bleeding rate,setting time,and compressive strength.The research results indicate that the interaction ratio of limestone powder and fly ash has a significant impact on the performance of mineral paste filling materials.As the replacement amount of limestone powder increases,it can effectively reduce the bleeding rate and setting time of the filling material,and improve the expansion rate of the paste.When the replacement ratio is around 25%,the compressive strength of the filling material is enhanced.When the curing period is longer than 3 days and the replacement amount of limestone powder is greater than 25%,and the compressive strength decreases as the replacement amount is increasing.
Keywords：limestone powderfly ashpaste filling materialcompressive strength
Publication Date：2024-11-20
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 126-131 )