Experimental research on basic properties of superhigh-water packing material
Abstract：In order to overcome the shortcomings of common packing materials applied in China＇s filling mining under buildings,the basic properties of superhigh-water material with different water content including the compressive strength,volumetric strain,setting time,rheology,micromorphology and stability were detailedly tested and analyzed.The results show that superhigh-water has such advantages as rapid hardening,good fluidity with single slurry A or B,adjustable setting time etc.The hardened body of this material has a little volumetric strain and a good incompressibility under three-dimensional stress condition.However,it loses its stability easily in dry air or high temperature environment.Due to mine goaf under a wet,cold and closed environment after coal mining,it can be known that this material is a good packing material in goaf,and filling mining with this material under buildings conforms to the concepts of scientized mining,which is one of the developmental directions of future filling mining in mine.
Keywords：superhigh-water materialmechanical propertiesrheologystabilityfilling mining
Publication Date：2011-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)