A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Development of Innovative Green Self-compacting Concrete with Partial Replacement of Fine and Coarse Aggregate by Using Slag
There is a need to minimize the use of conventional natural materials in concrete and the use of alternative marginal materials could be the answer for sustainable development. In this study, Self-Compacting Concrete (SCC) was developed using slag as cement, filler, fine aggregate and coarse aggregate. A new mix proportioning method was adopted starting with a volume of paste (Vp) based on absolute volume concept. Vp chosen was 0.37, 0.39 and 0.41 with maximum size of the aggregate restricted to 20 mm. Cement and water contents of 300, 375 and 450 kg/m3 and 180 and 190 l/m3 respectively were chosen. For each of the mix, slag is used as cement, filler, fine and coarse aggregates and aggregates are replaced in different proportions to the natural aggregate by volume. Compressive strength tests were conducted on cubes at 28 days. The results show for a given w/c ratio, Vp and water content, an optimal replacement level of 50% slag as fine and coarse aggregate gives higher results than at higher percentage and opens a new beginning of using slag as fine as well as coarse aggregate. Interestingly SCC mixes with slag showed higher compressive strength than normal concrete.
Development of Innovative Green Self-compacting Concrete with Partial Replacement of Fine and Coarse Aggregate by Using Slag
There is a need to minimize the use of conventional natural materials in concrete and the use of alternative marginal materials could be the answer for sustainable development. In this study, Self-Compacting Concrete (SCC) was developed using slag as cement, filler, fine aggregate and coarse aggregate. A new mix proportioning method was adopted starting with a volume of paste (Vp) based on absolute volume concept. Vp chosen was 0.37, 0.39 and 0.41 with maximum size of the aggregate restricted to 20 mm. Cement and water contents of 300, 375 and 450 kg/m3 and 180 and 190 l/m3 respectively were chosen. For each of the mix, slag is used as cement, filler, fine and coarse aggregates and aggregates are replaced in different proportions to the natural aggregate by volume. Compressive strength tests were conducted on cubes at 28 days. The results show for a given w/c ratio, Vp and water content, an optimal replacement level of 50% slag as fine and coarse aggregate gives higher results than at higher percentage and opens a new beginning of using slag as fine as well as coarse aggregate. Interestingly SCC mixes with slag showed higher compressive strength than normal concrete.
Development of Innovative Green Self-compacting Concrete with Partial Replacement of Fine and Coarse Aggregate by Using Slag
RILEM Bookseries
Ashish, Deepankar Kumar (editor) / de Brito, Jorge (editor) / Sharma, Sanjay Kumar (editor) / Girish, S. (author) / Ajay, N. (author) / Ishani, N. (author) / Chaitra, D. M. (author) / Hrushikesh, M. (author)
International Conference on Innovative Technologies for Clean and Sustainable Development ; 2020 ; Chandigarh, India
2020-11-06
14 pages
Article/Chapter (Book)
Electronic Resource
English
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