Abstract

The recycled coarse aggregate has poor mechanical properties and cracking resistances due to its own defects, which hinders the application of recycled aggregate concrete (RAC) in practical engineering. In this paper, the cracking resistances of RAC beams were studied by changing the volume incorporation rates and mixing methods of polypropylene fibers and steel fibers. The results show that the cracking width of RAC beams decreases, but the number of cracks is relatively larger when they are destroyed, compared with RAC beams. The ductility of RAC beams with fibers is relatively better. Through the experimental study and theoretical analysis, the formula for calculating the maximum cracking width of RAC beams with hybrid fibers is derived.

Details

Title
Experimental Study on Cracking Resistances of RAC Beams with Polypropylene Fibers and Steel Fibers
Author
Tang, Jiajun 1 ; Pei, Changchun 1 

 Department of Structural Engineering, College of Engineering, Yanbian University, Yanji, Jilin, 133000, China 
Publication year
2019
Publication date
Feb 2019
Publisher
IOP Publishing
ISSN
17551307
e-ISSN
17551315
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2557526135
Copyright
© 2019. This work is published under http://creativecommons.org/licenses/by/3.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.