Leaching of Ca, Si, Fe and Al from concretes, based on sulphate resistant cement, due to bacterial attack - a correlation study

1st International Conference on Advances in Environmental Engineering

生态环境科学

Ondrejka Harbulakova, V.^1 ; Estokova, A.^1 ; Luptakova, A.^2 ; Kovalcikova, M.^1

Technical University of Kosice, Faculty of Civil Engineering, Institute of Environmental Engineering, Kosice, Slovakia^1

Slovak Academy of Science, Institute of Geotechnics, Kosice, Slovakia^2

关键词: Aggressive environment;    Concrete samples;    Correlation analysis;    Correlation studies;    Corrosion of concretes;    Exposed to;    Sulphate-resistant cements;    Weak correlation;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/92/1/012048/pdf
DOI  :  10.1088/1755-1315/92/1/012048

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Investigation of biological corrosion of concrete requires that composition of material, surface and aggressive environment have to be taken into account. Sulphate resisting cement, as one of the resistivity improving factors, was used for preparation of concrete samples studied in this experiment. Dependences of leached-out quantities of selected ions regarding bacterial versus non-bacterial environments were investigated and evaluated using correlation analysis. Leaching trends of calcium, silicon and aluminium strongly depends on the aggressiveness of medium which are the samples exposed to. A weak correlation was found for the leaching trends of aluminium and iron in both bacterial and non-bacterial media.