01661479

Component

Engineered cementitious composite (ECC) is a class of high-performance fiber-reinforced concrete featuring a ductile strain-hardening behavior under tension. It has been extensively researched over the past decade as a durable alternative to conventional concrete. Due to its superior mechanical and durability performance, ECC has been successfully applied in bridge deck constructions and bridge deck repairs. Various potential applications in new pavement construction and pavement repairs have also been investigated. Previously developed ECC mixtures, however, mostly use imported polyvinyl alcohol (PVA) fibers and fine silica sand which, due to their high cost and lack of local availability, greatly limit field application of ECC, especially in large-scale transportation infrastructures. To address this issue, the current research presents a case study of tailoring ECC mixture proportion customized to available local ingredients including a type of PVA fibers that are domestically manufactured in the U.S. and locally available river sands. The resulting ECC mixtures achieved ductile tensile behavior comparable to previously developed ECC mixtures with tensile strains up to 3.81%.

This paper was sponsored by TRB committee AFN10 Standing Committee on Basic Research and Emerging Technologies Related to Concrete.

18-02717

English

13p

2018

Transportation Research Board 97th Annual Meeting

Digital/other

Figures; Photos; References; Tables

Admixtures; Cement; Composite materials; Ductility; Fiber reinforced concrete; Local materials

Highways; Materials; Pavements

Transportation Research Board Annual Meeting 2018 Paper #18-02717

TRIS, TRB, ATRI

Jan 8 2018 10:39AM