| Autor: |
Oluwarotimi Olofinnade, Ayoyinka Morawo, Oluwatomisin Okedairo, Boksun Kim |
| Jazyk: |
angličtina |
| Rok vydání: |
2021 |
| Předmět: |
|
| Zdroj: |
Case Studies in Construction Materials, Vol 14, Iss , Pp e00532- (2021) |
| Druh dokumentu: |
article |
| ISSN: |
2214-5095 |
| DOI: |
10.1016/j.cscm.2021.e00532 |
| Popis: |
The needs to meet the global demand for the conservation of non-renewable resources has necessitated the efforts of finding alternative materials. This current study investigates the beneficial utilization of the crushed waste furnace steel slag as a replacement for natural sand in concrete interlocking paving block units’ production for pedestrian and non-traffic applications. A total number of 144 paver samples were cast at replacement percentages of 0, 20, 40, 60, 80 and 100 % by weight of sand using a mix proportion ratio of 1:1.5:3 (cement: sand: granite) at a constant water-cement ratio of 0.5, targeting a strength of 20 MPa at 28 days. Tests carried out include physical characterization of the constituent materials, compressive strength, split tensile strength and water absorption tendency of the hardened H-shaped interlocking pavers. Results showed a significant 15 % increase in the compressive strength at 28-day up to 40 % sand replacement while the tensile strength also increases by 10 % at 28-day up to 20 % sand replacement compared to the control samples before a gradual strength reduction as the percentage replacement increases. The results indicate the possibility of using waste furnace slag for the production of interlocking pavers to promote an eco-friendly and sustainable pavement infrastructure in line with the UN Sustainable Development Goals. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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