Research on characterization methods of efflorescence on cement-based decorative mortar

2nd International Workshop on Materials Science and Mechanical Engineering

机械制造;材料科学

Liu, X.F.^1 ; Peng, J.H.^2 ; Zhang, J.X.^2^3 ; Qu, J.D.^3

School of Civil Engineering and Architecture, Chongqing University of Science and Technology, Chongqing

401331, China^1

College of Materials Science and Engineering, Chongqing University, Chongqing

400045, China^2

Chongqing Jianda Building Materials Co.Ltd, Chongqing

400030, China^3

关键词: Cement-based;    Characterization methods;    Colour change;    Grey scale;    Image processing technique;    Image processing technology;    Quantitative features;    Research and application;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/504/1/012007/pdf
DOI  :  10.1088/1757-899X/504/1/012007

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

The cement-based decorative mortar is a kind of good finishing material because of its abundant shape and wide range of colour change, with efflorescence. The lack of characterizat ion methods of efflorescence degree seriously hinders the further research and application of cement-based decorative mortar. In this paper, the characterization methods of the efflorescence degree of decorative mortar was studied by image processing technology. The results show that the effects of colours in different grey scales on mortar appearance can be distinguished by the image processing techniques, and colours in efflorescence region would be obviously affected when their grey scales were 15 higher than that of matrix colour. Furthermore, the functional is proposed which was proposed could not only quantitative feature the efflorescence degree well but had a good conformance with the actual value.