Carbon Emission and Cost Analysis of Using Hybrid Fibre White Topping Overlays—A Road Rehabilitation Feasibility Study
White topping is a popular road rehabilitation technique that uses Portland cement concrete overlay on top of any existing bituminous pavement. However, this often results in additional cost and carbon emission escalations which complicates market useability of the product. The current study aims at...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-03-01
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| Series: | Future Transportation |
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| Online Access: | https://www.mdpi.com/2673-7590/2/1/14 |
| _version_ | 1797471546145505280 |
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| author | Lujain Kuruvachalil Malindu Sandanayake Ramya Kumanayake Radhakrishna |
| author_facet | Lujain Kuruvachalil Malindu Sandanayake Ramya Kumanayake Radhakrishna |
| author_sort | Lujain Kuruvachalil |
| collection | DOAJ |
| description | White topping is a popular road rehabilitation technique that uses Portland cement concrete overlay on top of any existing bituminous pavement. However, this often results in additional cost and carbon emission escalations which complicates market useability of the product. The current study aims at comparing carbon emission and manufacturing cost of concrete topping mixes with three different fibre types. The study optimises the benefits and promotes the use of effective materials in sustainable road rehabilitation. Samples with polyolefin-twisted (F2) fibres indicated least carbon emission escalation while the sample with polypropylene (F3) exhibited least cost escalation with 0.75% and 7.17% from the control sample respectively. A multi-objective genetic optimisation study was conducted to identify the mix designs with least carbon emission and production cost escalations. Sensitivity analysis illustrated that transport distance is a critical contributing factor for production cost while carbon emission is highly sensitive to emission factors for transport and cement production. These results indicate the importance of considering locally available materials and clean energy for production processes. Future research can be focused on exploring the long-term environmental and economic benefits including the durability characteristics to benchmark the sustainable benefits of using waste fibre materials in the mix. |
| first_indexed | 2024-03-09T19:49:43Z |
| format | Article |
| id | doaj.art-e503a98a08d5400993b8ed7ff88fe38d |
| institution | Directory Open Access Journal |
| issn | 2673-7590 |
| language | English |
| last_indexed | 2024-03-09T19:49:43Z |
| publishDate | 2022-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Future Transportation |
| spelling | doaj.art-e503a98a08d5400993b8ed7ff88fe38d2023-11-24T01:15:48ZengMDPI AGFuture Transportation2673-75902022-03-012126328010.3390/futuretransp2010014Carbon Emission and Cost Analysis of Using Hybrid Fibre White Topping Overlays—A Road Rehabilitation Feasibility StudyLujain Kuruvachalil0Malindu Sandanayake1Ramya Kumanayake2Radhakrishna3Department of Civil Engineering, RV College of Engineering, Visvesvaraya Technological University, Bengaluru 560059, IndiaInstitute of Sustainable Industries and Liveable Cities, College of Engineering and Science, Victoria University, P.O. Box 14428, Melbourne, VIC 3011, AustraliaDepartment of Civil Engineering, General Sir John Kotelawala Defence University, Ratmalana 10390, Sri LankaDepartment of Civil Engineering, RV College of Engineering, Visvesvaraya Technological University, Bengaluru 560059, IndiaWhite topping is a popular road rehabilitation technique that uses Portland cement concrete overlay on top of any existing bituminous pavement. However, this often results in additional cost and carbon emission escalations which complicates market useability of the product. The current study aims at comparing carbon emission and manufacturing cost of concrete topping mixes with three different fibre types. The study optimises the benefits and promotes the use of effective materials in sustainable road rehabilitation. Samples with polyolefin-twisted (F2) fibres indicated least carbon emission escalation while the sample with polypropylene (F3) exhibited least cost escalation with 0.75% and 7.17% from the control sample respectively. A multi-objective genetic optimisation study was conducted to identify the mix designs with least carbon emission and production cost escalations. Sensitivity analysis illustrated that transport distance is a critical contributing factor for production cost while carbon emission is highly sensitive to emission factors for transport and cement production. These results indicate the importance of considering locally available materials and clean energy for production processes. Future research can be focused on exploring the long-term environmental and economic benefits including the durability characteristics to benchmark the sustainable benefits of using waste fibre materials in the mix.https://www.mdpi.com/2673-7590/2/1/14road rehabilitationcostcarbon emissionsoptimisationwhite topping |
| spellingShingle | Lujain Kuruvachalil Malindu Sandanayake Ramya Kumanayake Radhakrishna Carbon Emission and Cost Analysis of Using Hybrid Fibre White Topping Overlays—A Road Rehabilitation Feasibility Study Future Transportation road rehabilitation cost carbon emissions optimisation white topping |
| title | Carbon Emission and Cost Analysis of Using Hybrid Fibre White Topping Overlays—A Road Rehabilitation Feasibility Study |
| title_full | Carbon Emission and Cost Analysis of Using Hybrid Fibre White Topping Overlays—A Road Rehabilitation Feasibility Study |
| title_fullStr | Carbon Emission and Cost Analysis of Using Hybrid Fibre White Topping Overlays—A Road Rehabilitation Feasibility Study |
| title_full_unstemmed | Carbon Emission and Cost Analysis of Using Hybrid Fibre White Topping Overlays—A Road Rehabilitation Feasibility Study |
| title_short | Carbon Emission and Cost Analysis of Using Hybrid Fibre White Topping Overlays—A Road Rehabilitation Feasibility Study |
| title_sort | carbon emission and cost analysis of using hybrid fibre white topping overlays a road rehabilitation feasibility study |
| topic | road rehabilitation cost carbon emissions optimisation white topping |
| url | https://www.mdpi.com/2673-7590/2/1/14 |
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