Influence of Moisture Migration on Further Hydration and Microstructure of Cement-Based Materials
LIU Yazhou
WEI Cece
WANG Lei
TANG Zhouyang
KONG Lijuan
Abstract：A further hydration test was conducted to study the moisture migration laws of cement-based materials under different curing regimes and hydration temperatures of water.The influence of moisture migration on further hydration and microstructure of cement-based materials were analyzed.The results show that the amount of combined water in cement-based materials shows a tendency of decreasing with an increase in specimen depth.After further hydration for 35 d,the amount of combined water at the specimen depth of 160 mm is decreased by 6.4%compared with that at the depth of 0 mm.The amount of combined water for further hydration at the specimen depth of 80 mm during the early period displays a tendency of decreasing with an increase in high-temperature water-bath curing time,but its value increases with an increase in hydration temperature of water.When the hydration temperature of water is too high(60℃),microcracks are generated inside cement-based materials,and the pore structure is coarsened,and further hydration manifests as damage effect.
Keywords：moisture migrationfurther hydrationcuring regimehydration temperature of watercombined watermicrostructure
Publication Date：2024-11-28
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 1033-1038 )