Use of Steel Slag as Coarse and Fine Aggregate in Porous Concrete Pavements
Vishwanath B J1, Rex2
1Vishwanath B J, Department of Civil Engineering, Malla Reddy Engineering College, Hyderabad, India.
2Dr. Rex, Department of Civil Engineering, Malla Reddy Engineering College, Hyderabad, India.
Manuscript received on 10 December 2018 | Revised Manuscript received on 17 December 2018 | Manuscript Published on 30 December 2018 | PP: 436-439 | Volume-8 Issue- 2S December 2018 | Retrieval Number: BS2720128218/19©BEIESP
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open-access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: Due to increasing demand of raw materials for construction of roads, the environmental eco system is getting imbalanced. Hence there is a need to preserve natural resources by using eco friendly alternative materials. Steel slag is one such alternative material, which is an industrial by product that can be used as an alternative to aggregates in partial replacement in road construction. Slag may be used as both coarse and fine aggregates in cement concrete. Hence in the present study mix design for conventional porous concrete was carried out for different proportion of fine and coarse aggregate (0:100, 10:90, 15:85, 20:80, and 30:70). The optimum dosage of FA:CA for the conventional porous concrete mix, giving high strength with acceptable permeability was fixed i.e 20:80 Then the mix design for porous concrete was carried out for partial replacement coarse and fine aggregates with steel slag in 20:80 mix. i.e Replacing only the coarse aggregate in FA:CA (20:80) mix with the air cooled LD slag in three different proportions such as 10%, 30% and 50% .i.e keeping FA-20% constant and replacing coarse aggregate by slag in 80% of CA and Replacing only the fine aggregate in FA:CA (20:80) with the granulated LD slag in three different proportions such as 30%, 60% and 90% .i.e keeping CA 80% constant and replacing fine aggregate by slag in 20% FA. Finally the mix design properties in terms of strength and permeability are evaluated for the porous concrete prepared with coarse and fine slag.
Keywords: Porous Concrete; Air Cooled LD slag; Granulated LD slag; Coarse Aggregate
Scope of the Article: Computational Techniques in Civil Engineering