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In Hot Mix Asphalt (HMA), aggregates are consolidated with an asphalt binding medium to shape a compound material. By weight, aggregates constitute about 92 to 96 percent of HMA. They include the larger part of pavement volume. Therefore, it is important to know the knowledge of property of these aggregates in designing high quality pavements. Aggregates particle shape is one such property that is analyzed in this dissertation work. The shape of aggregate is categorized by measuring particles largest diameter, smallest diameter and Intermediate diameter using Vernier Calipers. With these diameter the elongation ratio and flatness ratio is calculated with which the aggregate shape is determined. Later the Aggregate gradation required foe Dense Bituminous Mix is prepared as per MoRTH guidelines. For this dissertation work a proportion of 10%, 20%, 30% 40% and 50% of different shape of aggregates is prepared and mix strength is determined using Marshall Stability Test. Also, other marshall properties such as flow value, bulk density VFB and VMA is analyzed. For the mix with maximum strength and minimum strength is analyzed for its performance evaluations using Immersion Wheel tracking equipment. From these dissertation work it is observed that more the sphericity value of aggregates higher it resembles the cubical shape of aggregate. In DBM mix cube shape of aggregates with 20% has the higher strength than conventional mix, followed by strength of 50% cube shape aggregate replacement in conventional mix. Blade shape aggregate with 30% in the mix has the least strength. Coming to performance evaluation cube shape with 20% proportion has more rutting resistance potential than the conventional mix.
"A Study on the Influence of shape of coarse aggregates on strength of dense bituminous macadam", International Journal of Science & Engineering Development Research (www.ijrti.org), ISSN:2455-2631, Vol.2, Issue 9, page no.1 - 8, August-2017, Available :http://www.ijrti.org/papers/IJRTI1709001.pdf
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2456-3315 | IMPACT FACTOR: 8.14 Calculated By Google Scholar| ESTD YEAR: 2016
An International Scholarly Open Access Journal, Peer-Reviewed, Refereed Journal Impact Factor 8.14 Calculate by Google Scholar and Semantic Scholar | AI-Powered Research Tool, Multidisciplinary, Monthly, Multilanguage Journal Indexing in All Major Database & Metadata, Citation Generator