Behavior of Concrete Burned with High Temperature

Jumat, 23 Oktober 2020 - 10:48
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Behavior of Concrete Burned with High Temperature
 
 
Ketua : Dr. Y DJOKO SETIYARTO ST., MT.
Anggota : H Y Fira
Civil Engineering Department, Faculty of Engineering and Computer Science, Universitas Komputer
Indonesia, Jalan Dipatiukur No.112-116 Bandung, Indonesia
Email : y.djoko.setiyarto@email.unikom.ac.id
 
Abstract. This study aims to determine the compressive strength of concrete after a fire and to determine the properties and characteristics of concrete after the fire. This study used an experimental method using cube concrete specimens and concrete quality K 175, where each of the 5 samples was treated burned and not burned. Concrete was treated by curing for 28 days. The fuel test used an electric furnace with the combustion temperature used was 1000⁰C with a duration of 6 hours at the age of 35 days. Furthermore the test sample was cooled at room temperature for 24 hours. Changes that occurred in post-burn concrete include changes in the color of the concrete to gray-white, crazing, spalling, release of aggregate grains, occur shrinkage and increased porosity. The results of post-burn concrete press test also showed a decrease in compressive strength by 70%. The average percentage of post-burn shrinkage is 13.79%. The average value of post-burn porosity of concrete is 31.91%.