Beycioğlu, AhmetAruntaş, Hüseyin YılmazGencel, OsmanLobland, Haley E. HaggŞamandar, AyhanBrostow, Witold2020-05-012020-05-0120161392-13202029-7289https://doi.org/10.5755/j01.ms.22.4.13354https://hdl.handle.net/20.500.12684/5703WOS: 000391191100016We have investigated the effect of elevated temperature on properties of clinoptilolite blended cements. Clinoptilolite was used at 5 %, 10 %, 15 % and 20 % replacement by weight for Portland cement while sand and water quantities were kept constant in all mix designs. Dry weights, flexural strengths, and compressive strengths of specimens were determined as a function of time. The same properties were again evaluated after specimens, having reached the age of 90 days, were exposed to 300 degrees C, 400 degrees C and 500 degrees C temperatures for 3 h. Initial setting times for all cements prepared were >= 60 minutes, the limiting time according to TS EN 197-1. The mortars with 5 % or 10 % cliniptilolite substitution have compressive strength exceeding 42.5 MPa after being subjected to 400 degrees C and 500 degrees C.en10.5755/j01.ms.22.4.13354info:eu-repo/semantics/openAccessblended cementclinoptilolitecement compressive strengthelevated temperaturesArticle224548552WOS:000391191100016Q3Q4