Open Access
sravan chilukuri
Sanjeet Kumar
Ashwin Raut
- Research Scholar Department of Civil Engineering, Koneru Lakshmiah Education Foundation Andhra Pradesh India
- Associate Professor Department of Civil Engineering, Koneru Lakshmiah Education Foundation Andhra Pradesh India
- Associate Professor Department of Civil Engineering, Koneru Lakshmiah Education Foundation Andhra Pradesh India
Abstract
This study is focused on investigating the strength and durability properties of mortar cubes made with slag cement and incorporating Ultra Fine Steel Slag (SS) as a potential replacement for natural fine aggregates (FNA). In some instances, the cement was entirely replaced with hydrated lime to develop the blocks. A battery of tests, including assessments of compressive strength, acid resistance, sulfate resistance, water absorption, and void analysis, were carried out to evaluate the performance of these mortar blocks. For comparison purposes, a control mix comprising 100% natural fine aggregates was also prepared. Notably, mortar cubes incorporating Ultra Fine Steel Slag-Cement (SS-C-1) exhibited a significant increase in compressive strength compared to the control mix. However, it is important to highlight that the compressive strength exhibited a decline in the block’s where hydrated lime was used as the primary binder. Exposure to acidic and sulfate-rich environments resulted in a shift in mass and a subsequent reduction in compressive strength for all concrete mixes. Moreover, the results indicated a decrease in water absorption when Steel Slag was used in combination with both cement and lime, in comparison to the natural fine aggregates. Nevertheless, further increases in the Steel Slag content led to a rapid increase in water absorption due to the rise in void content within the mortar. This trend in water absorption was in accordance with the percentage of voids present. Considering these findings, it is recommended to consider Steel Slag as a viable replacement for natural fine aggregates, either in combination with cement or lime, to produce mortar blocks with enhanced strength and durability characteristics.
Keywords: Durability, Steel Slag, sulfate resistance, acid resistance, Sulfuric acid
This article belongs to Special Issue Conference International Conference on Innovative Concepts in Mechanical Engineering (ICICME – 2023)
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Journal of Polymer and Composites
| Volume | 11 |
| Special Issue | 08 |
| Received | October 19, 2023 |
| Accepted | October 30, 2023 |
| Published | January 22, 2024 |