Author/Authors :
BOZKURT, Nusret Bitlis Eren Üniversitesi - Mühendislik Mimarlık Fakültesi - İnşaat Mühendisliği Bölümü, Turkey
Abstract :
This paper reports an experimental study and statistical analysis results carried out to determine high temperature effect on concrete containing perlite powder (PP) as a sustainable admixture material. For this aim, five different concrete samples were produced with PP percentages of 0%, 5%, 10%, 15% and 20% as a replacement of the cement in weight basis. Concrete specimens were heated up to temperatures of 400, 600 and 900°C, then compressive strength and ultrasonic pulse velocity test were performed to identify high temperature effect comparing to the test results obtaining from standard laboratory conditions. Moreover, to determine contribution of PP to the concrete performance, concrete strength and ultrasonic pulse velocity tests were implemented on concrete specimens at the ages of 3, 7, 28 and 90-days. This paper adopts Taguchi approach with an L25 orthogonal array to reduce the numbers of experiment. In this study, two control factors (Percentage of PP and Temperature) were used for statistical analysis. It was identified whether or not these parameters had an importance on compressive strength and ultrasonic pulse velocity using analysis of variance (ANOVA) method.
