Poyraz, BayramDayı, Mustafa2025-04-172025-04-1720240334-64472191-0340https://doi.org/10.1515/polyeng-2024-0114https://hdl.handle.net/20.500.12684/20135This study examined the effects of silane-modified polyimide polymer (PIS) on cement mortar. The PIS was added to replace cement in a specified ratio. Obtained results revealed that the PIS caused retardation on setting time, and accelerated UPV mostly by encapsulating unhydrated cement particles, filling pores, or reacting with C-S-H and Ca(OH)2 with shifting to Si-O vibrations. SEM results showed a good compact interface without forming considerable agglomeration and voids on the microstructure, and this improved flexural and compressive strength properties. In conclusion, silane-modified polyimide as an admixture or cement replacement can be recommended for construction industries to enhance the properties of cement mortar.English10.1515/polyeng-2024-0114PolyimideCement mortarMechanical propertiesRheological propertiesArticle4485715812-s2.0-85201424149WOS:001288380400001Q3Q3