JavaScript is disabled for your browser. Some features of this site may not work without it.
| dc.contributor.author | Nigatu, Tesfahun | |
| dc.date.accessioned | 2020-03-17T08:28:03Z | |
| dc.date.available | 2020-03-17T08:28:03Z | |
| dc.date.issued | 2020-03-17 | |
| dc.identifier.uri | http://hdl.handle.net/123456789/10519 | |
| dc.description.abstract | Recent improvement in the design of asphalt concrete, mostly in the upper layers of flexible pavements, contains almost an acceptable proportion of mineral fillers, which contributes to the mix cohesion, resistance to rutting and improves serviceability. Fillers play a substantial role in modification of the properties of asphalt and asphalt concrete mixtures. Understanding the effects of fillers on HMA mixture properties is crucial to mix design and high performance of HMA mixes. This study was intended to investigate the effect of waste glass filler on HMA mix properties, derive optimum percentage to be added and evaluate the economic feasibility of HMA containing waste glass filler and without waste glass filler. Cleaned and crushed, waste glass filler resulted from glass bottles with different percentages (2.5%, 5%, 7.5% and 10% by total weight of aggregates) have been added to asphalt concrete mixes. Marshall Method was used to determine the Optimum Binder Content (OBC) and to evaluate the properties of the glasphalt mix. In total, 90 samples were prepared, at 2.5% glass filler replacement rates to determine the OBC for each consecutive glass content including the control mix (mix containing natural stone dust as filler). The results of Marshall properties obtained (Stability, flow, density, air voids, &VMA) were consistent to the specifications, except the flow at 10% replacement rate and the air void at 4% bitumen content. Waste glass can be used in asphalt binder course as filler with better Marshall Properties at the optimum replacement of 7.5% glass content. Based on the economic analysis of HMA with and without waste glass filler, the unit rate of hot mix asphalt mixture containing glass filler is less than that of the control mix (without glass filler). Besides, the OBC of the mixtures containing glass are all less than the corresponding OBC of the control mix which in turn showed that waste glass filler is feasible as natural dust replacement and OBC reduction. | en_US |
| dc.language.iso | en | en_US |
| dc.subject | Road and Transport Engineering | en_US |
| dc.title | EVALUATION OF WASTE GLASS AS FILLER MATERIAL IN HOT MIX ASPHALT | en_US |
| dc.type | Thesis | en_US |
