Partial Replacement of Cement with Bagasse Ash in Hot Mix Asphalt
| dc.contributor.advisor | Habtamu, Melese (PhD) | |
| dc.contributor.author | Fikadu, Alemu | |
| dc.date.accessioned | 2020-02-10T05:42:32Z | |
| dc.date.accessioned | 2023-11-11T12:53:33Z | |
| dc.date.available | 2020-02-10T05:42:32Z | |
| dc.date.available | 2023-11-11T12:53:33Z | |
| dc.date.issued | 2019-07 | |
| dc.description.abstract | Today, the increasing demand and scarcity of construction materials like cement forced most researchers around the globe to focus on finding ways of utilizing either industrial or agricultural wastes/locally available materials as a source of raw materials and ecofriendly substitutes or alternatives for the improvement of pavement quality. These wastes utilization would, not only be economical, but may also help to create a sustainable and pollution free environment as the disposing of such wastes is tedious but, promoting towards waste management. Sugar-cane bagasse is one among the fibrous waste product of the sugar processing industry. Hot Mix Asphalt Mixtures (HMA) is a composite material consisting of mineral aggregates, filler/cement, asphalt binder and air voids. In addition, the current increment in energy cost and demand evokes the need for improving pavement quality either by modifying or replacing the cement partially or totally. Moreover, this study is intended for partially replacement of cement with bagasse ash in hot mix asphalt (HMA). The study investigates the partial replacement of cement with bagasse ash in hot mix asphalt using Marshall Flow and Stability tests with corresponding volumetric properties. Tests on the suitability of materials used and their performance in terms of known engineering properties were carried out with bitumen content of 4.0%, 4.5%, 5.0%, 5.5% and 6.0%. The focus involves the partial replacement of cement with BA in the order of 0%, 10%, 20%, 30%, 40% and 50% which ninety mix specimens were produced to conduct the tests. The asphalt mixture testing includes the Marshall Mix design which was used to determine the Optimum Bitumen Content (OBC) for the conventional HMA. The asphalt binder was replaced by the 20 percentages of cement using the OBC. The results obtained shows that the Cement/BA mixes exhibit satisfactory trend result with average bitumen content of 5.5%. However, this research concluded that partial replacement of cement with bagasse ash as filler in hot mix asphalt has no significant effect on performance or volumetric properties of asphalt concrete except on stability at lower bitumen content and flow at higher bitumen content, since the percentage of filler is too small. | en_US |
| dc.identifier.uri | http://etd.aau.edu.et/handle/12345678/20578 | |
| dc.language.iso | en_US | en_US |
| dc.publisher | Addis Ababa University | en_US |
| dc.subject | Hot Mix Asphalt | en_US |
| dc.subject | Bagasse Ash | en_US |
| dc.subject | Binder Content | en_US |
| dc.subject | Replacement of Cement | en_US |
| dc.title | Partial Replacement of Cement with Bagasse Ash in Hot Mix Asphalt | en_US |
| dc.type | Thesis | en_US |