Study on Mechanical Properties of Modified Coarse Particle Filler for High Railway Foundation in Seasonal Freezing Area
Based on practical projects,mechanical properties of coarse particle filler for paste roadbed im-provement in seasonal freezing area were studied.Starting from the selection of raw materials,cement was selected as the improver,and its action mechanism was analyzed.Uniaxial compression test was used to study the water stability performance and freeze-thaw durability of the modified cement filler.The test re-sults show that the water stability performance of the modified cement filler increases with the increase of age and is better than that of the unmodified cement filler,whether it is immersed in water or not.The im-proved durability of cement is much greater than that of unimproved filler,which can meet the construction requirements.
high railway baseunconfined compressive strengthfreeze-thaw cyclemechanical property
NETL
NSTL
万方数据
维普
