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LABORATORY ASSESSMENT OF WARM MIX ASPHALT MIXES WHEN PREPARED WITH VARYING PACKING CHARACTERISTICS AND INCLUSION OF FIBRE
| 题名： | LABORATORY ASSESSMENT OF WARM MIX ASPHALT MIXES WHEN PREPARED WITH VARYING PACKING CHARACTERISTICS AND INCLUSION OF FIBRE |
| 正文语种： | 英文 |
| 作者： | M.SREERAM; A.RAMESH; V.VENKAT RAMAYYA; M.KUMAR |
| 作者单位： | PG Student, VNR Vignana Jyothi Institute of Engineering and Technology; Associate Professor, Dept. of CE, VNR Vignana Jyothi Institute of Engg. & Tech., Bachupally, Hyderabad; Associate Professor, Dept. of CE, Mahatma Gandhi Institute of Technology Gandipet Hyderabad; Professor, Dept. of CE, University College of Engg. (Autonomous), Osmania University, Hyderabad |
| 关键词： | characteristics；packing；temperature；sasobit；pare；resilient；modified；ared；point；environment |
| 摘要： | Aggregate gradation selection process plays a vital role in designing the Hot Mix Asphalt (HMA) layer. In our country mid-point blending of aggregate is adopted as outlined in Ministry of Road Transport and Highways (MoRTH). Bailey's method of aggregate packing has significant effect in improving the structural skeleton of the aggregate in bituminous concrete mixes. During the preparation of HMA harmful gases are released which pollutes the environment. Numerous techniques are in practice, a few are at developing stage for reducing the effect of harmful gases. One among the technique for reducing the mixing temperature is with the use of Warm Mix Asphalt (WMA). The current experimental study attempts in the efficacy of bituminous concrete mixes prepared with MoRTH mid-point gradation and varied packing characteristics vis-a-vis of Bailey's method. Both mixes were modified with sasobit and reinforced with fibre for judging the efficacy in Marshall Parameters, tensile strength, resilient and rutting characteristics. A total of six different mix combinations were prepared, out of which the first three mixes were prepared using MoRTH mid-point gradation and remaining three mix combinations were prepared with varied packing characteristics vis-a-vis of Bailey's method. The results explains that reinforced WMA mixes prepared with Bailey method provides better efficacy towards stiffness value, moisture sensitivity and rutting resistance when compared with modified bituminous concrete mixes when prepared with MoRTH midpoint gradation. |
| 出版年： | 2019 |
| 期刊名称： | Indian Highways |
| 卷： | 47 |
| 期： | 6 |
| 页码： | 42-52 |
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