硫酸盐环境下水泥砂浆的腐蚀产物及孔结构研究

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发布时间：2020-01-06 00:00:00

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硫酸盐环境下水泥砂浆的腐蚀产物及孔结构研究

Research on corrosion products and pore structure of cement mortar under sulfate environment

2024年第2期

硫酸盐腐蚀；水泥砂浆；腐蚀产物；激光拉曼分析；孔结构

Sulfate corrosion; Cement mortar; Corrosion product; Laser Raman analysis; Pore structure

2024年第2期

10.19761/j.1000-4637.2024.02.028.04

湖北省自然科学基金项目（2022CFB323）；襄阳市科技计划项目（2022ABH006372）。

王学兵1，郭声波1，潘志华2

1.湖北文理学院土木工程与建筑学院，湖北襄阳 441053；2.南京工业大学材料科学与工程学院，江苏南京 210009

王学兵1，郭声波1，潘志华2

王学兵,郭声波,潘志华.硫酸盐环境下水泥砂浆的腐蚀产物及孔结构研究[J].混凝土与水泥制品,2024(2):28-30,40.

WANG X B,GUO S B,PAN Z H.Research on corrosion products and pore structure of cement mortar under sulfate environment[J].China Concrete and Cement Products,2024(2):28-30,40.

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摘要：采用激光拉曼光谱和压汞法研究了硫酸盐环境下水泥砂浆的腐蚀产物及孔结构，并引入分形维数，建立了水泥砂浆的抗折强度与平均孔径和分形维数的关系。结果表明：不同浓度的Na2SO4溶液浸泡下，砂浆表层腐蚀产物有所不同，且腐蚀产物在砂浆表层分布是不均匀的；砂浆的抗折强度与平均孔径r成反比，与分形维数d成正比，通过三种公式拟合可知，d/r2和抗折强度具有较好的相关性。 Abstract: The corrosion products and pore structure of cement mortar under sulfate corrosion were studied by using laser Raman spectroscopy and mercury intrusion method. Fractal dimension was introduced, and the relationship between the flexural strength of cement mortar and the average pore size and fractal dimension was established. The results show that the corrosion products on the surface of mortar are different when soaked in Na2SO4 solutions with different concentrations, and the distribution of corrosion products on the surface of mortar is uneven. The flexural strength of mortar is inversely proportional to the average pore size r and directly proportional to the fractal dimension d. By fitting three formulas, d/r2 and flexural strength has a good correlation.

英文名 : Research on corrosion products and pore structure of cement mortar under sulfate environment

刊期 : 2024年第2期

关键词 : 硫酸盐腐蚀；水泥砂浆；腐蚀产物；激光拉曼分析；孔结构

Key words : Sulfate corrosion; Cement mortar; Corrosion product; Laser Raman analysis; Pore structure

刊期 : 2024年第2期

DOI : 10.19761/j.1000-4637.2024.02.028.04

文章编号 :

基金项目 : 湖北省自然科学基金项目（2022CFB323）；襄阳市科技计划项目（2022ABH006372）。

作者 : 王学兵1，郭声波1，潘志华2

单位 : 1.湖北文理学院土木工程与建筑学院，湖北襄阳 441053；2.南京工业大学材料科学与工程学院，江苏南京 210009

王学兵1，郭声波1，潘志华2

王学兵,郭声波,潘志华.硫酸盐环境下水泥砂浆的腐蚀产物及孔结构研究[J].混凝土与水泥制品,2024(2):28-30,40.

WANG X B,GUO S B,PAN Z H.Research on corrosion products and pore structure of cement mortar under sulfate environment[J].China Concrete and Cement Products,2024(2):28-30,40.

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摘要

参数

结论

参考文献

引用本文

摘要：采用激光拉曼光谱和压汞法研究了硫酸盐环境下水泥砂浆的腐蚀产物及孔结构，并引入分形维数，建立了水泥砂浆的抗折强度与平均孔径和分形维数的关系。结果表明：不同浓度的Na₂SO₄溶液浸泡下，砂浆表层腐蚀产物有所不同，且腐蚀产物在砂浆表层分布是不均匀的；砂浆的抗折强度与平均孔径r成反比，与分形维数d成正比，通过三种公式拟合可知，d/r²和抗折强度具有较好的相关性。

Abstract: The corrosion products and pore structure of cement mortar under sulfate corrosion were studied by using laser Raman spectroscopy and mercury intrusion method. Fractal dimension was introduced, and the relationship between the flexural strength of cement mortar and the average pore size and fractal dimension was established. The results show that the corrosion products on the surface of mortar are different when soaked in Na₂SO₄ solutions with different concentrations, and the distribution of corrosion products on the surface of mortar is uneven. The flexural strength of mortar is inversely proportional to the average pore size r and directly proportional to the fractal dimension d. By fitting three formulas, d/r² and flexural strength has a good correlation.

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硫酸盐环境下水泥砂浆的腐蚀产物及孔结构研究

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