Yazar "Lobland, Haley E. Hagg" seçeneğine göre listele

Listeleniyor 1 - 1 / 1
  • Küçük Resim
    Öğe
    Effect of Elevated Temperatures on Properties of Blended Cements with Clinoptilolite
    (Kaunas Univ Tech, 2016) Beycioğlu, Ahmet; Aruntaş, Hüseyin Yılmaz; Gencel, Osman; Lobland, Haley E. Hagg; Şamandar, Ayhan; Brostow, Witold
    We 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.