Flexural Behavior of Carbon Fiber Reinforced Cement Composite


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Title: Flexural Behavior of Carbon Fiber Reinforced Cement Composite

Author(s): H. Sakai, K. Takahashi, Y. Mitsui, T. Ando, M. Awata, and T. Hoshijima

Publication: Special Publication

Volume: 142


Appears on pages(s): 121-140

Keywords: carbon; composite materials; curtain walls; durability; fatigue (materials); fiber reinforced concretes; fibers; flexural strength; mixers; mixing; vibrators (machinery); Materials Research

Date: 1/1/1994

Carbon fiber reinforced cement composite (CFRC) has outstanding advantages in its dynamic characteristics and durability. Among other characteristics, it has a flexural strength three to four times higher than that of ordinary concrete. Taking advantage of these characteristics of CFRC in designing curtain walls, the manufacturing of thin, lightweight curtain walls becomes possible. This paper describes experimental studies conducted using CFRC specimens to examine the effects of mixing and placing conditions upon the flexural strength of CFRC, scale effects, and the fatigue of CFRC subject to repetitive loads. Furthermore, based on the results of these experiments, allowable bending stress in designing curtain walls was determined and its authenticity verified by having a full-scale composite panel undergo a wind resistance test. Several examples of CFRC used as curtain walls are also introduced.