Authors: Saddam Hussain, Shivani Thakur, Sonia
DOI Link: https://doi.org/10.22214/ijraset.2022.45651
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Bituminous mixture is an admixture of coarse aggregate, fine aggregate and fill. Hot Mix Asphalt( HMA) is a type of bituminous mixture in which all molecules are mixed and compacted at high degree of temperature. HMA is available in two forms compact graded and Stone Matrix Asphalt( SMA), formally is known as Bituminous Concrete( BC) and another’s known as gap graded. SMA needs added threads to minimize the drainage through the material. In this study, a work has been made to enhance the stability of SMA using banana fibers along with binder content( BC). The admixture has been prepared as per the MORTH specification. The probability of BC and fiber content is varied from 4 to 7% and from 0.1 to0.5% . A number of tests have been performed on the marble dust to check it’s. As per the test analysis, Marble dust is introduced as an Optimum Binder Content( OBC) and has been used for the mix with an average value determined as 5% . After adding 5 of BC into the bitumen along with different probability of banana threads similar as0.1%,0.2%,0.3%,0.4% and0.5%. The tests have been performed on five different samples and tests values in terms of stability, inflow value, Air Void( VA) and Void in Mineral Aggregate( VMA) have been measured. From the test it has been observed that banana fiber enhances the stability of the mixed sample.
I. INTRODUCTION
The construction of the road ways covers a large amount of investment. To invest less, construction engineering must have to design road in such a way so that one can achieve a reliable performance of the road along with the built-in service. There are two factors that must be considered while using flexible pavement as well as the mix design.
These two factors are one of the key elements in the engineering-paving design and mixing design. This research deals with mixed design of bitumen.
Good design of bituminous mixtures should have following characteristics:
Mix designer makes an effort to obtained all the above features with number of tests performed on the mix in which the materials are added in different proportion and then select that mix which provides best value.
The primary formal mixed design technique was primarily Hibbard Field mechanism that was designed on sand-asphalt mixture. Using this method, the mix with large number of aggregates was not handled. A number of stabilizing elements such as Cellulose fibre, mineral fibre and so on are added into the bituminous mix mostly with SMA so that the drain down of binder can be decreased. Natural fibre such as jute fibre, sisal fibre and coconut fibre has been also used by many research work. Attempts have been made to use naturally available fibres in this research work. It is called BANANA FIBER mixed in BC. Banana fibres are mix with the bitumen to increase the strength as well as stability of the material and also decrease the quantity of using bitumen.
A. Stone Matrix Asphalt (SMA)
SMA, also referred as “Stone Mastic asphalt” it is a gap graded HMA. This is basically designed to improve rutting resistance along with durability. The goal of the hybrid design is to form a mixture which as stone-to-stone contact. Because the aggregate does not deform like a bituminous binder under load, the contact of the stone with the stone largely lowers the rutting. SMA is usually quite expensive compared to dense HMA as it needs more durable aggregates, more inventory (sometimes more waste to create available inventory grading), higher bitumen content, modified asphalt bonding Agents and fibers. SMA is primarily used to pave high- volume U.S. interstates and roadways, achieving high situations of rutting resistance and durability. In addition to upgraded durability and rutting resistance, SMAs have actually good friction characteristics. SMAs have also been successfully used on high- volume national highways with heavy machine and truck trade. This is increasing the interlocking of the aggregates and provides better gravestone to gravestone contact which serves as loading carrying method in SMA and hence provides better rut resistance and durability.
II. LITERATURES REVIEW
III. OBJECTIVE OF WORK
1) In recent years, Stone Mastic Asphalt has proven to be superior on busy roadways all over the world. Both the asphalt industry and road authorities are becoming more and more accustomed to using SMA. 2) SMA’s longer service life gives it a better return on investment than maximum alternate materials truly though the initial costs may be road ways. Given that a life span increase of at least 5 – 10 years can be attained and that additional advantages covered before are gained, it\'s clear that the choice of SMA can be a good investment. 3) The Marshall Stability value has been obtained maximum at BFC of 0.3% and after that it starts decreases 4) To gain the maximum benefit from SMA it\'s important to ensure that the admixture is well designed and a high standard of product and laying is maintained. 5) Stone mastic asphalt with or without polymer modified binder is one of the new and innovative materials being used by road authorities in their challenge to provide cost effective outcomes for highway carrying a steadily rising volume of commercial vehicles. 6) Also, the air Void has been increased upto 0.3 % of banana fiber content and after the addition of more fiber content the VA increases. 7) Therefore, it is concluded that an optimum value of parameters has been obeserved at banana fiber content of 0.3 % in the bitumen mix design
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Copyright © 2022 Saddam Hussain, Shivani Thakur, Sonia . This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Authors : Shivani Thakur
Paper Id : IJRASET45651
Publish Date : 2022-07-15
ISSN : 2321-9653
Publisher Name : IJRASET
DOI Link : Click Here