Research on Durability of Big Recycled Aggregate Self-Compacting Concrete Beam

2017 International Symposium on Application of Materials Science and Energy Materials

材料科学;能源学

Gao, Shuai^1 ; Liu, Xuliang^1 ; Li, Jing^1 ; Li, Juan^2 ; Wang, Chang^1 ; Zheng, Jinkai^1

Shool of Pipeline and Civil Engineering, China University of Petroleum, Qingdao

266580, China^1

Nanjing Jinling Petrochemical Engineering CO., Nanjing, Jiangsu

210042, China^2

关键词: Comparative studies;    Concrete beam;    Crack width;    Critical structures;    Maximum crack width;    Mid-span deflection;    Ordinary concretes;    Recycled aggregates;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/322/3/032002/pdf
DOI  :  10.1088/1757-899X/322/3/032002

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Deflection and crack width are the most important durability indexes, which play a pivotal role in the popularization and application of the Big Recycled Aggregate Self-Compacting Concrete technology. In this research, comparative study on the Big Recycled Aggregate Self-Compacting Concrete Beam and ordinary concrete beam were conducted by measuring the deflection and crack width index. The results show that both kind of concrete beams have almost equal mid-span deflection value and are slightly different in the maximum crack width. It indicates that the Big Recycled Aggregate Self-Compacting Concrete Beam will be a good substitute for ordinary concrete beam in some less critical structure projects.