摘要
To explore the distribution of and the mechanical properties(compressive strength)of the hardened body of alkali slag-fly ash cementitious materials,this study was conducted by using the XRD,FTIR,SEM/EDS,and other test methods in three conditions:airtight drying(AD),airtight immersion(AI),and airtight soaking(AS).The 1D distribution law of free of hardened body under standard curing conditions was explored.The experimental results show that under standard curing conditions,the 1D distribution of within 0d-3 d shows a∨-shaped distribution,within 3-7 d show a∧-shaped distribution,and within 7-28 d tends to be balanced.The test results of leaching rate show that the free was the most stable under AD conditions and the hardened body bound the most by XRD,FTIR and SEM/EDS.And the compressive strength of the hardened body was the highest.The compressive strength of 28th reached 95.9 MPa.The definite distribution of provides an important reference for the strength development and durability evaluation of the hardened body of alkaliexcited cementitious materials.
作者
卞立波
TAO Zhi
王秀芳
WANG Shaohui
YE Kangjun
HU Xingbo
BIAN Libo;TAO Zhi;WANG Xiufang;WANG Shaohui;YE Kangjun;HU Xingbo(School of Civil and Traffic Engineering,Beijing University of Civil Engineering and Architecture,Beijing,102616,China;Beijing Key Laboratory of Functional Materials for Building Structure and Environment Remediation,School of Science,Beijing University of Civil Engineering and Architecture,Beijing,102616,China;Beijing Shoufa Tianren Ecological Landscape Co.,Ltd,Beijing,102699,China)
基金
Funded by the Natural Sciences Foundation of China(No.51808025)
the Pyramid Talent Training Project of BUCEA(No.JDYC20200329)。
