eprintid: 8378 rev_number: 2 eprint_status: archive userid: 1 dir: disk0/00/00/83/78 datestamp: 2023-11-09 16:20:16 lastmod: 2023-11-09 16:20:16 status_changed: 2023-11-09 16:12:30 type: article metadata_visibility: show creators_name: Mohammed, B.S. creators_name: Achara, B.E. creators_name: Nuruddin, M.F. creators_name: Yaw, M. creators_name: Zulkefli, M.Z. title: Properties of nano-silica-modified self-compacting engineered cementitious composites ispublished: pub keywords: Compressive strength; Elastic moduli; Energy absorption; Mixtures; Multiobjective optimization; Shrinkage; Surface properties, Cementitious composites; Drying shrinkages; Engineered cementitious composite (ECC); Fresh and hardened properties; High-performance fibres; Nano Silica; Poly (vinyl alcohol) (PVA); Response surface methodology, Silica note: cited By 90 abstract: An engineered cementitious composite (ECC) is a type of high-performance fibre-reinforced composite developed based on micromechanical principles. To improve the modulus of elasticity and minimise the drying shrinkage in self-compacting (SC) ECC without adversely affecting its ductility, nano-silica (NS) is included in the cementitious composite. Twenty SC-ECC mixtures were proportioned, cast, cured, and tested to determine the fresh and hardened properties by using two variables: polyvinyl alcohol (PVA) fiber and NS particles. Five levels of NS (0, 1, 2, 3, and 4) and four levels of PVA (0.5, 1, 1.5, and 2) were considered. A response surface methodology was used to conduct multi-objective optimisation and develop mix proportions that produce the best response to the compressive strength, modulus of elasticity, and energy absorption. It was found that mixtures with 2 PVA and 1.89 NS produce the most desirable responses. © 2017 Elsevier Ltd date: 2017 publisher: Elsevier Ltd official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85024130913&doi=10.1016%2fj.jclepro.2017.06.137&partnerID=40&md5=24f9b2a49d93e090fbe1c33d28738e6f id_number: 10.1016/j.jclepro.2017.06.137 full_text_status: none publication: Journal of Cleaner Production volume: 162 pagerange: 1225-1238 refereed: TRUE issn: 09596526 citation: Mohammed, B.S. and Achara, B.E. and Nuruddin, M.F. and Yaw, M. and Zulkefli, M.Z. (2017) Properties of nano-silica-modified self-compacting engineered cementitious composites. Journal of Cleaner Production, 162. pp. 1225-1238. ISSN 09596526