Improving the polishing resistance of cement mortar by using recycled ceramic

被引：33
作者：
Lu, Guoyang [1 ,2 ,3 ]
Fan, Zepeng [2 ]
Sun, Zengqing [4 ]
Liu, Pengfei [2 ]
Leng, Zhen [4 ]
Wang, Dawei [1 ,2 ]
Oeser, Markus [2 ]
机构：
[1] Harbin Inst Technol, Sch Transportat Sci & Engn, Huanghe Rd 73, Harbin 150090, Peoples R China
[2] Rhein Westfal TH Aachen, Inst Highway Engn, Mies van der Rohe Str, D-52074 Aachen, Germany
[3] Hong Kong Polytech Univ, Dept Civil & Environm Engn, Hong Kong, Peoples R China
[4] Rhein Westfal TH Aachen, Inst Bldg Mat Res, Schinkel Str 3, D-52062 Aachen, Germany
来源：
RESOURCES CONSERVATION AND RECYCLING | 2020年 / 158卷
关键词：
Ceramic waste; Cement mortar; Recycled ceramic aggregates; Polishing resistance; Concrete pavement; ASPHALT PAVEMENT; COARSE AGGREGATE; CONCRETE; WASTES; LAYER; SIZE; FINE;
D O I：
10.1016/j.resconrec.2020.104796
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Recycling of construction and demolition (C&D) waste is one of the most effective ways to develop sustainable pavements. In this study, the feasibility of using ceramic waste as an alternative source for fine aggregate to improve the polishing resistance of cement mortar is investigated. The recycled fine aggregates used in this study originate from sanitary ceramic waste; the physical and chemical properties of the Recycled Ceramic Aggregates (RCA) were determined. The optimal RCA content in the mortar was determined based on the mechanical strength of the resulting composite. The polishing resistance of coarse and fine RCA was characterized with the Polished Stone Value (PSV) test and the Wehner/Schulze (W/S) test, respectively. The test results indicate that the polishing resistance of RCA is significantly better than that of commonly used mineral aggregate. Lastly, the self-developed Aachen Polishing Machine (APM) was applied to validate the improvement of RCA on the polishing resistance of cement mortar under realistic loading conditions. The cement mortar containing RCA exhibits a better long-term polishing resistance than the traditional mortar. The results from this study provide insights into the application of RCA in concrete pavements and the improvement of material properties.
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页数：9
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