Abrasion Resistance of Manufactured Sand (MS) Concrete and Its Influence Factors

7th Annual International Conference on Materials Science and Engineering

Luo, Guang^1 ; Xie, Jicheng^2 ; Chen, Zheng^2^3 ; Zhang, Yun^1

Guangxi Xianglu Construction Co. Ltd., Guangxi, Nanning

530029, China^1

Key Laboratory of Disaster Prevention and Structural Safety of China, Ministry of Education, School of Civil Engineering and Architecture, Guangxi University, Nanning

530004, China^2

Guangxi Key Laboratory of Disaster Prevention and Structural Safety, Guangxi University, Nanning

530004, China^3

关键词: Fine aggregates;    Granular shape;    Irregular shape;    Large aspect ratio;    Major factors;    Manufactured sand;    Source selection;    Stone powders;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/562/1/012065/pdf
DOI  :  10.1088/1757-899X/562/1/012065

来源: IOP

【 摘 要 】

The feasibility of using MS to replace river sand (RS) in concrete pavement has been widely concerned by scholars, however the abrasion resistance of MS concrete pavement serves as a major factor restricting application. Published literature shows huge potential of MS as a replacement of natural fine aggregate. A detailed overview of published literature on property of MS and influencing factors on abrasion resistance of MS concrete is being presented. Regarding the characteristics of MS, the granular shape is characterized by irregular shape, multi-angle and large aspect ratio, the gradation shows a phenomenon of less in the middle and more on both ends, and MS contains high content of stone powder and little mud powder. The influencing factors include mix ratio, lithology, stone powder, admixture, polymer, etc. Among them, stone powder has attracted the attention of many scholars. Nevertheless, few related studies exist at present, source selection and in-depth research merit consideration.