Influence of Coarse Aggregate Size on Softening Curve of Concrete

Abstract:

The program by Fortran to determine softening curve of concrete by inverse analysis was developed based on the wedge splitting test and Fictitious Crack Model (FCM). The four-linear softening curves were obtained by the inverse analysis program for the wedge splitting (WS) specimens which size are all 200mm×300mm×300mm with different coarse aggregate size. The approach of refining element mesh was presented for the inverse analysis calculation. It is shown that the three control parameters of softening curve, which are the tensile strength f_t, maximum crack width w_c and fracture energy G_F, increase with increase of the maximum coarse aggregate size d_max.

• Periodical: Advanced Materials Research (Volumes 446-449)
• Pages: 636-641
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.446-449.636
• Online since: January 2012
• Authors: Zhi Fang Zhao, Xiao Jie Feng, Zhi Gang Zhao, Li Jian Yang
• Keywords: Coarse Aggregate Size, Concrete, Inverse Analysis, Softening Curve, Wedge Splitting Test

References

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