Performance and characteristics of alkali activated binder hardened body with different curing rules
BIAN Libo
DING Linna
TAO Zhi
LIAO Heng
LI Minyu
Abstract：To investigate the performance change law and microstructure characteristics of the hardened body of alkali activat-ed cementitious materials(AACM)under different water contact regimes,the mechanical properties,Na+distribution pattern,and mi-crostructure of the hardened body of alkali activated cementitious materials under the three maintenance regimes of airtight drying(AD),immersion(AI),and soak in water(AS)were researched.The results showed that the 28 day compressive strength of AACM hardened body under AI and AS curing conditions decreased by 1.9％and 15.5％respectively compared to AD curing conditions.Under AD curing conditions,the leaching rate of Na+in the AACM hardened body was the highest at 28 days,reaching 5.02％.FT-IR,XRD,SEM/EDS analysis showed that under AD curing conditions,the Na+binding degree in the AACM hardened body was higher,and the performance of the AACM hardened body was better.
Keywords：alkali activated bindercuring rulesleaching ratecombined Na+pore structuremechanical performance
Publication Date：2025-01-24
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)