Carbonization Resistance Test and Prediction Model Analysis of Graphene Cement Mortar
DONG Jianmiao1, HE Qi1, ZHOU Ming2,3,*, WANG Zhenyu1, ZHUANG Jiaqiao1, ZOU Mingxuan1, LI Wanjin1
1 School of Civil Engineering and Architecture, Guangxi University of Science and Technology, Liuzhou 545006, Guangxi, China 2 School of Mechanical and Automotive Engineering, Guangxi University of Science and Technology, Liuzhou 545006, Guangxi, China 3 Guangxi Qinglu New Material Technology Co., Ltd., Liuzhou 545006, Guangxi, China
Abstract: Two different sizes of graphene (Peeling graphene, PG) slurry were dispersed, and then the graphene cement mortars were prepared. Carbonization test of graphene cement mortar at different ages was conducted by rapid carbonization methods. Composition and hydration pro-ducts of graphene cement-based materials were observed by X-ray diffraction (XRD), scanning electron microscope (SEM) and X-ray energy dispersive spectroscopy (EDS) tests. The microscopic morphology of graphene cement-based materials and hydration products were observed. The test results showed that at the age of 56 d, the carbonation depths of the large-size graphene (PG1) and small-size graphene (PG2) cement mortar samples were 3.7 mm and 5.5 mm, respectively, which were 58.4% and 38.2% lower than those of the blank sample. Using the lm function of R language, the nonlinear regression prediction models on the carbide depth of the three cement mortar test blocks at different ages were established, the relationship between carbonation time and carbonation depth was investigated. The simulation results have a high agreement with the experimental measured values.
作者简介: 董健苗,广西科技大学土木建筑工程学院教授、硕士研究生导师。1994年武汉工业大学无机非金属材料专业本科毕业,2001年武汉理工大学材料学专业硕士毕业后到广西科技大学工作至今。2016年1月至2016年9月在英国UCL大学访学。目前主要从事高性能水泥混凝土等方面的研究工作。发表论文40余篇,包括Cement and Concrete Research、Journal of Wuhan University of Technology-Materials Science Edition、《硅酸盐学报》《建筑材料学报》《材料导报》等。
引用本文:
董健苗, 何其, 周铭, 王振宇, 庄佳桥, 邹明璇, 李万金. 石墨烯水泥砂浆抗碳化试验及预测模型分析[J]. 材料导报, 2024, 38(5): 22070184-6.
DONG Jianmiao, HE Qi, ZHOU Ming, WANG Zhenyu, ZHUANG Jiaqiao, ZOU Mingxuan, LI Wanjin. Carbonization Resistance Test and Prediction Model Analysis of Graphene Cement Mortar. Materials Reports, 2024, 38(5): 22070184-6.
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2024, Vol. 38 
