Print Email Facebook Twitter Micromechanics-guided development of a slag/fly ash-based strain-hardening geopolymer composite Title Micromechanics-guided development of a slag/fly ash-based strain-hardening geopolymer composite Author Zhang, Shizhe (TU Delft Materials and Environment) Li, Victor C. (University of Michigan) Ye, G. (TU Delft Materials and Environment) Date 2020 Abstract Strain-hardening geopolymer composite (SHGC) lately emerged as a promising alternative to traditional strain-hardening cementitious composite with added advantages of industrial by-product utilization and enhanced sustainability. However, as the design of SHGC requires multi-factor optimization, the application of traditional trial-and-error method is inefficient and hinders the development of this material. This paper aims at the development of a slag/fly ash-based SHGC with low slag content using a micromechanical model to guide the composite mixture design. To this end, experimentally characterized physical properties of fiber, matrix and interface are used as input for the micromechanical model, which serves as a predictive tool for the tensile performance of SHGC. Following the guidance, a slag/fly ash-based SHGC with tensile strain capacity of 4.8% and ultimate tensile strength above 3.8 MPa was systematically developed. The feasibility and effectiveness of using micromechanics as the design basis of SHGC are demonstrated and experimentally verified. Subject Fly ashGeopolymerMicromechanicsSlagStrain-hardeningTensile To reference this document use: http://resolver.tudelft.nl/uuid:a2622ec5-2fad-4eb0-879f-214ba24dbacd DOI https://doi.org/10.1016/j.cemconcomp.2020.103510 ISSN 0958-9465 Source Cement and Concrete Composites, 109 Part of collection Institutional Repository Document type journal article Rights © 2020 Shizhe Zhang, Victor C. Li, G. Ye Files PDF 1_s2.0_S0958946520300019_main.pdf 1.77 MB Close viewer /islandora/object/uuid:a2622ec5-2fad-4eb0-879f-214ba24dbacd/datastream/OBJ/view