期刊名称：IOP Conference Series: Earth and Environmental Science
印刷版ISSN：1755-1307
电子版ISSN：1755-1315
出版年度：2019
卷号：304
期号：5
页码：1-8
DOI：10.1088/1755-1315/304/5/052087
出版社：IOP Publishing
摘要：Guided by strategies for renewable resources and sustainable development, in the mix ratio design of the fair-faced recycled concrete, use broken waste concrete test blocks, and replace natural coarse aggregate by 40 % equal amount. The optimum dosage of water reducer and foaming agent was 1.33 % and 1.5 % respectively, and the optimal match ratio was put forward. At the same time, the improved vibration technology is proposed to treat the quality of surface air bubbles and holes in fair-faced recycled concrete. Finally, using the scale model of bridge structure and the reserved Honeycomb and hemp surface, the repairing technology of fair-faced recycled concrete is studied, which is an effective treatment of construction quality disease, providing reference for the design and repair of fair-faced recycled concrete.
