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author:

梁咏宁 (梁咏宁.) [1] (Scholars:梁咏宁) | 陈李全 (陈李全.) [2] | 张迎 (张迎.) [3] | 林旭健 (林旭健.) [4] (Scholars:林旭健) | 季韬 (季韬.) [5] (Scholars:季韬)

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PKU

Abstract:

以Na_2SO_4和MgSO_4溶液为侵蚀介质,研究了在浸泡环境下Ca O-Na_2CO_3激发矿渣(CNS)砂浆和普通硅酸盐水泥(OPC)砂浆经硫酸盐侵蚀前后的抗折强度、抗压强度及不同深度处的SO~(2-)_4浓度,结合X射线衍射(XRD)、扫描电子显微镜(SEM)、压汞法(MIP)等测试方法分析了CNS砂浆和OPC砂浆的侵蚀产物及孔结构,对比讨论了Na_2SO_4和MgSO_4对CNS砂浆和OPC砂浆的侵蚀机理。结果表明:CNS砂浆的水化产物主要是低Ca/Si比的水化硅铝酸钙(C-A-S-H),不存在氢氧化钙,碳酸钙的填充作用使其孔结构优于OPC砂浆,并且在相同侵蚀环境下,CNS砂浆的抗硫...

Keyword:

侵蚀产物 侵蚀机理 孔结构 强度 抗蚀系数 硫酸盐 碱矿渣砂浆

Community:

  • [ 1 ] 福州大学土木工程学院

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Source :

硅酸盐通报

ISSN: 1001-1625

CN: 11-5440/TQ

Year: 2022

Issue: 10

Volume: 41

Page: 3556-3566

Cited Count:

WoS CC Cited Count: 0

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 3

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