| Abstrakt: |
In Iraq, certain rocks called porcelanite can be used to make lightweight concrete. The objective of this paper is to create lightweight self-compacting concrete (SCC) by utilizing 0.4 w/cm, coarse and fine porcelanite aggregate and adding nano silica to these mixtures. This study looks at a different way of doing things. Instead of using sand in concrete, they used varying amounts of fine porcelanite instead. We replaced 10%, 20%, 30%, 40%, and 50% of the sand with porcelanite to see how it would influence the concrete's thermal characteristics. Further examined the ratio of water to cement, using ratios of 0.4 and 0.5 by doing this, we wanted to see how both ratio of water to cement, and amount of porcelanite affected the thermal properties of the concrete. It was found that porcelanite makes self-compacting concrete harder to work with, and less able to conduct and spread heat. However, it does make the concrete hold more heat. When nano silica was used, it reduced workability of SCC. However, its effect on thermal properties was not of much significance. [ABSTRACT FROM AUTHOR] |
