Title:
Shear Behavior of Recycled Coarse Aggregate Concrete Beams after Freezing-and-Thawing Cycles
Author(s):
Tian Su, Jin Wu, Guixin Yang, Xianhang Jing, and Andrea Mueller
Publication:
Structural Journal
Volume:
116
Issue:
5
Appears on pages(s):
67-76
Keywords:
beam; freezing-and-thawing cycles; recycled coarse aggregate concrete; shear behavior; stirrup
DOI:
10.14359/51716770
Date:
9/1/2019
Abstract:
This paper presents the results of research on the shear behavior of recycled coarse aggregate concrete (RAC) beams after freezing-and-
thawing cycles. Six RAC beams and six natural aggregate concrete (NAC) beams were manufactured and tested. The experimental results show that the crack patterns and distributions of RAC beams and NAC beams after freezing-and-thawing cycles were similar. The shear capacity and the stiffness of RAC beams decreased with the increase of freezing-and-thawing cycles. The shear capacity and the stiffness of RAC beams was lower than that of NAC beams for exposure to equal numbers of freezing-and-thawing cycles. A prediction model for the shear capacity of RAC beams after freezing-and-thawing cycles was established.
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