A Review on the Methods of Improving Fiber Distribution of Engineered Cementitious Composites (ECC)

Abstract:

Engineered cementitious composites(ECC) are characterized by strain hardening and tight crack width control. Good fiber distribution can maximize fiber contribution at each stage of the crack bridging process. However, poor fiber distribution can be disadvantage to fiber contribution, even influence the robustness of strain-hardening. Combined with the latest research results, this review highlights the methods of improving fiber distribution in ECC. Good fiber distribution is based on excellent matrix fluidity, which can be determined by mineral admixtures, admixture and water/binder (w/c). Fiber included surface morphology, size and content of fiber have also an effect on fiber distribution in the ECC. Additionally, slag and sand size shape of matrix components play a surprising role on fiber distribution. Based on the reviewed methods it is argued that fiber optimization and matrix components tailoring can be used to improve fiber distribution.

• Periodical: Advanced Materials Research (Volume 683)
• Pages: 46-50
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.683.46
• Online since: April 2013
• Authors: Heng Mao Niu, Yong Ming Xing, Yan Ru Zhao
• Keywords: Engineered Cementitious Composites, Fiber Characteristics, Fiber Distribution, Matrix Components, Strain-Hardening

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