A Research on the Usage of Corn Cob in Producing Lightweight Concrete
- 1 Department of Irrigation and Drainage, Faculty of Agricultural Engineering, University of Ege, Bornova-Izmir, Turkey
Abstract
In this study, the possibility of using corn cobs as an organic aggregate in producing lightweight concrete ha s been investigated. First, some important physical properties of corn cob have been determined in the laboratory. These properties are as follows: weight to volume ratio (unit weight), water absorption rate and granulometric analysis. Later on, 4 concrete mixtures have been prepared according to the workability of concrete and standar d s specified in Turkey. After that, unit weight, heat transmissibility coefficient and 28-day pressure strength of these 4 concrete samples have been determined using machines measuring these properties. The 28-day pressure endurance value has been found between 1.4 - 56.25 kgf/cm 2 , heat transmissibility coefficient ha s been found between 0.19 - 0.35 Kcal/m ∙ h ∙ ˚ C and unit weight of samples have been found between 800 - 1520 kg/m 3 . Lastly , these properties of concrete samples have been compared with other lightweight materials being used in the construction of buildings.
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