摘要The traditional design method for semirigid materials is unsuitable for the design and construction of modern road recycled building materials due the high water absorption property of construction waste recycling aggregates. Therefore, this study compares the mix design results of the traditional and rotary compaction methods of recycled aggregate cement-stabilized gravel. Test results indicate that the optimum water content obtained using the rotary compaction method is smaller than that obtained using the traditional method, and the dry density index of 80 compaction times complies with the design results of the traditional method, whereas the strength of the specimen is higher than that of the hydrostatic specimen. When cement content exceeds 7%, the strength of the material is mainly influenced by the cement, and the forming method minimally affects strength. The rotary compaction method is more suitable for the design of cement-stabilized recycled aggregates. The optimum water content and the maximum dry density of the cement-stabilized aggregates have a stable number of compaction.
Abstract：The traditional design method for semirigid materials is unsuitable for the design and construction of modern road recycled building materials due the high water absorption property of construction waste recycling aggregates. Therefore, this study compares the mix design results of the traditional and rotary compaction methods of recycled aggregate cement-stabilized gravel. Test results indicate that the optimum water content obtained using the rotary compaction method is smaller than that obtained using the traditional method, and the dry density index of 80 compaction times complies with the design results of the traditional method, whereas the strength of the specimen is higher than that of the hydrostatic specimen. When cement content exceeds 7%, the strength of the material is mainly influenced by the cement, and the forming method minimally affects strength. The rotary compaction method is more suitable for the design of cement-stabilized recycled aggregates. The optimum water content and the maximum dry density of the cement-stabilized aggregates have a stable number of compaction.
基金资助:Supported by the National Natural Science Foundation of China (Nos.51708144; 51568007; 51378224), the Natural Science Foundation of Guangdong Province (No.2014A030310272), the Scientific Research Project for Colleges and Universities Administered by Guangzhou Municipal Government (No.1201630223)
通讯作者:
CAI Xu
E-mail: cx_caixu@163.com
引用本文:
蔡旭, 李翔, 吴旷怀, 黄文柯. 基于旋转压实的水泥稳定再生集料设计方法研究[J]. Journal of Highway and Transportation Research and Development, 2018, 12(3): 1-6.
CAI Xu, LI Xiang, WU Kuang-huai, HUANG Wen-ke. Grading Design of Recycled Aggregate Cement-stabilized Gravel Based on Rotary Compaction. Journal of Highway and Transportation Research and Development, 2018, 12(3): 1-6.
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2018, Vol. 12 
