Effect of BaCl2 on Mechanical Properties of High Ductile Alkali-Activated Slag-Based Composites
KAN Lili
LIU Neng
WANG Fei
Abstract：By uniaxial tensile and compressive tests,the effects of BaCl2 on the mechanical properties of high ductile alkali-activated slag-based composite(HDASC)were investigated.The results indicate that the addition of BaCl2 with 3.0％content makes the setting time prolongate to 109 min.The increase in BaCl2 content leads to gradual decrease in the initial cracking strength,tensile strength and compressive strength,especially the addition of 3.0％BaCl2 corresponds to a 50.0％decrease ratio,nevertheless,the tensile strain almost maintains the range between 6.24％-9.66％.The microscopic testing results show that the addition of BaCl2 incurs the decrease of hydration reaction degree of HDASC and the increase of pore numbers,thereby reducing the compactness of matrix and weakening the bonding between fibers and matrix.
Keywords：retarderBaCl2fiber-reinforcedalkali-activated slagmechanical property
Publication Date：2023-12-28
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：7( 1303-1309 )