Influence of curing agent on the properties of road base material with granite powder
YANG Shengwen
Abstract：The influence of composite ionic curing agent(A)and organic-inorganic composite curing agent(B)on road base material were studied through the unconfined compressive strength and water resistance.The results show that compared with the blank group,the unconfined compressive strength of material with 1％stone powder and cement total mass curing agent A at 7,14,and 28 days increased by 4.06％,13.17％,and 10.62％,respectively.The addition of 1％curing agent B to the total mass of stone powder and cement increased by 2.71％,22.45％,and 12.00％,respectively.The growth of unconfined compressive strength is limited by the curing agent under continuous water immersion,but it can improve the stability of volume.During the dry-wet cy-cle,both curing agent can promote the development of early age strength.SEM analysis showed that the amount of hydrated calci-um silicate(C-S-H)gel and the morphology of ettringite(AFt)changed after adding curing agent,which affected the strength and water resistance of the material.
Keywords：road base materialcuring agentunconfined compressive strengthwater resistancecuring mechanism
Publication Date：2025-10-25
Online Publishing Date：2025-11-28(First online date of this platform, not the publication date of the document)
Pages：6( 27-31,53 )