2026-10-23T17:53:14Zhttps://gumushane-rdlopen.rawdatalibrary.net/oai/requestoai:gumushane-rdlopen.rawdatalibrary.net:gumushane/144102026-10-22T11:37:05Zopenairedrivercom_gumushane_10000col_gumushane_10001com_gumushane_10010col_gumushane_10172Effect of White-Portland cement containing micro and nano silica on the mechanical and freeze-thaw properties of self compacting mortarsEtli, SerkanYılmaz, TekinHansu, OsmanDurabilityMicro-/nano-silicaMicrostructureSelf-compacting mortarStrengthWhite-Portland cementThis study concentrated to investigate the influences of white-Portland cement (W-PC) containing silica fume (SF: micro-silica (µSi) and nano-silica (nSi)) as replacement (2–4 wt%) on mechanical (strength and durability), physical and microstructural behaviors of self-compacting mortars (SCMs) fabricated at 0.48–0.63 w/b ratios. In keeping with these purposes, besides of carrying out the workability (mini-slump flow: M−SF and V-funnel: V-F) experiments of SCMs, the mechanical and microstructural tests implemented were: unconfined compressive strength (UCS), flexural strength (FS), freeze–thaw (F-T) and scanning electron microscope (SEM) analysis. The outcomes displayed that, in comparison with the control, replacing W-PC by SF (particularly nSi) enhanced the UCS and FS, resisted against F-T durability by lowering the strength losses in UCS and FS. The ameliorated microstructure resulting in a reduction in the number and/or a narrowing in the size of micro-cracks and pores contributed to generate a more compact and consolidated SCM structure for the improving of strength and durability due of pore-filling effect and superior pozzolanic characteristics of µSi and especially nSi, this in turn reduced the permeability of SCM, which has a significant effect on the strength and durability behaviors of the SCM.Elsevier B.V.2024Articlehttps://rdlopen.rawdatalibrary.net/r/gumushane/14410https://doi.org/10.1016/j.jestch.2023.1016142215-0986enEngineering Science and Technology, an International Journalinfo:eu-repo/semantics/openAccessinfo:eu-repo/semantics/articlehttps://gumushane-rdlopen.rawdatalibrary.net/tr/items/gumushane/14410