Discontinuous micro-fibers as intrinsic reinforcement for ductile Engineered Cementitious Composites (ECC)
Duo Zhang , Jing Yu , Haoliang Wu , Beata Eliza Jaworska , Brian R. Ellis , V.C. Li
AbstractEngineered Cementitious Composites (ECC) have demonstrated superior mechanical and durability performance than conventional concrete. In the micromechanical reinforcing system of ECC, fibers play a pivotal role in establishing the ultrahigh tensile ductility and autogenous crack width control. This article reviews the state-of- the-art of discontinuous micro-fibers as intrinsic reinforcement of ECC regarding technical performance as well as environmental and economic impacts. Mechanical properties of ECC made with different micro-fibers, man-made or natural, and their embodied energy, emissions and material cost, are comprehensively surveyed. Further, studies on fiber hybridization are discussed regarding the combination of different types of fibers to form syn-ergetic reinforcements that mitigate total material cost, and potentially enhance the composite performance. Recommendations on fiber selections are highlighted and directions for future research are suggested.
|Journal series||Composites Part B-Engineering, [Composites Part B: Engineering], ISSN 1359-8368, e-ISSN 1879-1069|
|Keywords in English||Engineered cementitious composites, Micromechanics, Crack control, Fiber bridging, Tensile ductility, Sustainability, Fiber reinforced concrete|
|ASJC Classification||; ; ;|
|Score||= 200.0, 25-09-2020, ArticleFromJournal|
|Publication indicators||= 5; = 5; : 2018 = 2.466; : 2018 = 6.864 (2) - 2018=6.313 (5)|
|Citation count*||12 (2020-09-02)|
* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.