Abstract

In order to reduce the cost of Engineered Cementitious Composite (ECC), a feasibility study of ECC using a Cost-Effective Polyvinyl Alcohol (PVA) fiber (CEPVA-ECC) was developed based on the micromechanical design theory. A set of ECCs with different amounts of fly ash replacement (up to 83 % replacement of cement) was prepared. The CEPVA-ECC using much cheaper Chinese domestic PVA fiber (1/6–1/4 the price of the imported fiber) maintained the tensile ductility characteristics (4–5 %) with a moderate compressive strength (30–40 MPa). The crack width was reduced with an increase of the fly ash amount. The strain map CEPVA-ECC was monitored by the Digital Image Correlation method.

Issue Section:
Technical Papers
Keywords:
engineered cementitious composites, cost-effective polyvinyl alcohol fiber, tensile ductility, digital image correlation

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